Goldstone Radar Observations Planning: Asteroids 2013 US3, 2008 TZ3, and 1999 FN19
2013 US3 2013 US3 was discovered by the Mt. Lemmon Survey in October 2013. This object has an absolute magnitude of 21.1 that suggests a diameter within a factor of two of 0.2 km, but otherwise nothing is known about its physical properties. Update on 2018 April 24: Goldstone echoes obtained on April 24 show a narrow bandwidth that suggests slow rotation for this object. 2013 US3 will approach within 0.026 au (10 lunar distances) on April 29. The SNRs should be strong enough for CW observations, ranging, and possibly coarse-resolution imaging. Tracks are scheduled on April 24, 26, and May 1 and 3. The 2018 approach is the closest by this asteroid for at least the last 400 years. The next time 2013 US3 will approach as closely is in 2118. 2013 US3 is on NASA's NHATS list of potential mission targets. The Minor Planet Center has classified 2013 US3 as a "Potentially Hazardous Asteroid." 388945 2008 TZ3 2008 TZ3 is a slow, potentially non-principal axis rotator. Lightcurves reported by Brian Warner (2016) and Petr Pravec (pers. comm.) indicate slow rotation with a period of 44.2 or ~30 hours. The spectral class and diameter are unknown, but the absolute magnitude of 20.4 suggests a diameter of roughly 300 meters. 2008 TZ3 will approach within 0.017 au on May 9, when it will be too far south for Goldstone to track. Two tracks are scheduled at Goldstone on May 1 and 3 during time previously scheduled for 2013 US3 and 1999 FN19. The SNRs may be strong enough for coarse-resolution imaging on May 3. The 2018 flyby is the closest by this asteroid since 1873 and until after 2459. The Minor Planet Center has classified 2008 TZ3 as a "Potentially Hazardous Asteroid." 1999 FN19 1999 FN19 was discovered by LINEAR in March 1999. This object has an absolute magnitude of 22.4, suggesting a diameter of roughly 120 meters. 1999 FN19 is an Sq-class object (Binzel et al. 2004). Photometry obtained during the discovery apparition suggested a rotation period of about 3.5 hours, but with much larger uncertainty than usual. More recent lightcurve observations by Petr Pravec have revealed a slow rotation period of 26.8 hours. Consequently, and all else being equal, the radar SNRs will be 2.8x stronger than originally thought. Radar observations in 1999 yielded a circular polarization ratio of 0.22+-0.05, which is somewhat less than average among all Sq-type NEAs observed by radar, and indicative of a moderate degree of near-surface roughness. The 1999 Goldstone observations yielded a bandwidth of 0.5 Hz, that, combined with the rotation period of 26.8 h, gives a diameter of about 0.13 km. 1999 FN19 was observed by the NEOWISE spacecraft on April 13 so a diameter may soon be available. 1999 FN19 will approach within 0.025 au (9.6 lunar distances) on May 7. It will be a moderately strong target at Goldstone, and due to the slow rotation, we expect to obtain delay-Doppler images at 1/8 usec (18.5 m) resolution despite the low transmitter power. The 2018 encounter is the closest approach by this asteroid since 1999 and until 2073. 1999 FN19 is on NASA's NHATS list of potential mission targets.
Orbital and Physical Characteristics Name 2013 US3 2008 TZ3 1999 FN19 Number not numbered 388945 not numbered Discoverer Mt. Lemmon Survey Mt. Lemmon Survey LINEAR Discovery date 2013 Oct 24 2008 Oct 6 1999 Mar 20 orbit type Apollo Apollo Amor Close approach date 2018 Apr 29 2018 May 9 2018 May 7 Close approach dist. 0.026 au 0.017 au 0.025 au Close approach dist. 10.1 lunar distances 6.5 lunar distances 9.6 lunar distances semimajor axis 1.200 au 1.593 au 1.646 au eccentricity 0.185 0.391 0.391 inclination 12.3 deg 8.8 deg 2.3 deg orbital period 1.31 y 2.01 y 2.11 y perihelion distance 0.978 au 0.964 au 1.002 au aphelion distance 1.422 au 2.216 au 2.290 au MOID 0.0198 au 0.017 au 0.0154 au Tisserand parameter absolute magnitude (H) 21.1 20.4 22.4 diameter ~0.2 km ~0.3 km ~0.13 km optical albedo unknown unknown unknown spectral class unknown unknown Sq rotation period very slow ~30-40 h P. Pravec, pers. comm. 26.8 h P. Pravec, pers. comm. ~44.2 h, B. D. Warner 2016 lightcurve amplitude unknown 0.5 mag 0.1 mag pole direction unknown NPA roator unknown PHA PHA NHATS NHATS 2013 US3 Close-approaches within 0.05 au: Date (TDB) Body CA Dist MinDist MaxDist Vrel TCA3Sg Nsigs P_i/p A.D. 1622 Apr 24.25114 Earth .024548 .024523 .024574 7.409 18.06 1.16E5 .000000 A.D. 1668 Apr 25.33724 Earth .030065 .029933 .030199 7.725 20.06 1.08E5 .000000 A.D. 1793 Apr 27.54528 Earth .036316 .035864 .036770 7.867 54.92 97026. .000000 A.D. 1847 Apr 26.40271 Earth .023373 .023349 .023397 7.333 6.48 95467. .000000 A.D. 2018 Apr 29.43669 Earth .025900 .025898 .025902 7.690 0.23 72833. .000000 A.D. 2047 Apr 25.38245 Earth .041933 .041921 .041944 7.045 1.48 79194. .000000 A.D. 2118 Apr 27.83591 Earth .024882 .024854 .024909 7.248 4.56 99150. .000000 A.D. 2177 Apr 28.31063 Earth .019351 .019284 .019419 7.336 16.57 92523. .000000 A.D. 2232 May 02.09962 Earth .034152 .028026 .040503 7.844 754.83 86381. .000000 A.D. 2299 Apr 28.64048 Earth .028972 .015168 .065068 7.178 4640.9 83337. .000000 A.D. 2337 Apr 30.28679 Earth .018784 .015092 .240223 7.317 21450. 83264. .000000 2008 TZ3 close approaches within 0.05 au: Date (TDB) Body CA Dist MinDist MaxDist Vrel TCA3Sg Nsigs P_i/p A.D. 1728 May 02.23329 Earth .030367 .030337 .030397 9.558 5.82 2.16E5 .000000 A.D. 1730 May 06.05707 Earth .012206 .012205 .012208 9.017 0.66 2.46E5 .000000 A.D. 1732 May 02.26617 Earth .031178 .031166 .031191 9.538 2.41 2.28E5 .000000 A.D. 1871 May 13.94665 Earth .033946 .033943 .033949 8.295 0.98 4.59E5 .000000 A.D. 1873 May 09.32057 Earth .015780 .015780 .015781 8.750 0.28 3.61E5 .000000 A.D. 1875 May 10.10046 Earth .016865 .016864 .016866 8.697 0.38 2.99E5 .000000 A.D. 1877 May 15.49928 Earth .042836 .042832 .042839 8.105 1.13 2.14E5 .000000 A.D. 2016 May 05.44379 Earth .033728 .033728 .033728 9.650 0.05 9.40E5 .000000 A.D. 2018 May 09.42049 Earth .016640 .016640 .016640 9.024 0.08 4.41E5 .000000 A.D. 2020 May 10.59515 Earth .018672 .018671 .018672 8.776 0.29 4.35E5 .000000 A.D. 2022 May 15.88747 Earth .038379 .038375 .038383 8.216 1.18 3.67E5 .000000 A.D. 2163 May 07.94187 Earth .035086 .035076 .035096 9.671 2.10 4.38E5 .000000 A.D. 2165 May 10.95326 Earth .020309 .020308 .020309 9.005 0.58 4.59E5 .000000 A.D. 2167 May 13.99046 Earth .025265 .025265 .025265 8.635 0.10 8.88E5 .000000 A.D. 2312 May 12.79820 Earth .024292 .024284 .024299 9.128 5.84 5.23E5 .000000 A.D. 2314 May 16.79109 Earth .029721 .029694 .029748 8.571 10.37 5.03E5 .000000 A.D. 2457 May 13.41269 Earth .028425 .028378 .028472 9.246 28.53 5.91E5 .000000 A.D. 2459 May 19.31873 Earth .038547 .038401 .038694 8.389 52.19 5.58E5 .000000 1999 FN19 close approaches within 0.05 au: Date (TDB) Body CA Dist MinDist MaxDist Vrel TCA3Sg Nsigs P_i/p A.D. 1646 Apr 17.68574 Earth .011617 .011603 .011632 5.972 63.37 3.09E6 .000000 A.D. 1707 May 14.53777 Earth .029337 .029327 .029346 5.835 22.41 4.55E5 .000000 A.D. 1766 May 04.28598 Earth .023705 .023693 .023716 5.697 24.94 1.10E5 .000000 A.D. 1785 May 28.00915 Earth .042965 .042953 .042978 6.517 9.76 6.41E5 .000000 A.D. 1821 Apr 26.89013 Earth .018009 .018008 .018011 5.812 3.17 3.07E6 .000000 A.D. 1874 May 11.35729 Earth .027202 .027199 .027205 5.731 8.60 3.48E5 .000000 A.D. 1891 Apr 17.49740 Earth .016925 .016925 .016925 6.256 0.30 1.44E6 .000000 A.D. 1946 May 25.28233 Earth .033390 .033390 .033390 6.029 0.35 6.46E5 .000000 A.D. 1999 Apr 17.27344 Earth .020766 .020766 .020766 6.451 0.01 4.03E6 .000000 A.D. 2018 May 07.58103 Earth .024803 .024803 .024803 5.701 0.14 6.95E5 .000000 A.D. 2073 Apr 30.68190 Earth .020433 .020433 .020433 5.788 0.12 8.53E5 .000000 A.D. 2109 Apr 29.07714 Earth .018753 .018753 .018753 5.863 0.78 9.42E5 .000000 A.D. 2162 May 12.90951 Earth .026685 .026683 .026686 5.683 4.39 3.24E5 .000000 A.D. 2179 May 04.23606 Earth .021989 .021982 .021997 5.773 16.80 8.18E5 .000000 A.D. 2196 May 28.96905 Earth .032091 .032076 .032105 6.037 35.69 6.05E5 .000000 A.D. 2245 May 03.19766 Earth .021273 .021181 .021365 5.822 222.42 9.59E5 .000000 A.D. 2294 Jun 02.50107 Earth .033032 .032781 .033292 6.146 491.96 5.83E5 .000000 A.D. 2326 Jun 12.67937 Earth .045794 .043150 .048545 6.898 1520.3 5.31E5 .000000 A.D. 2373 Apr 21.46777 Earth .028881 .020527 .040177 6.698 6095.3 1.38E6 .000000 A.D. 2390 May 19.34691 Earth .028336 .026944 .029774 5.684 7916.2 5.04E5 .000000 A.D. 2439 Apr 18.59052 Earth .041546 .027008 .056662 7.218 5305.0 1.45E6 .000000 Last update: 2018 April 17
2013 US3 2008 TZ3 https://minorplanetcenter.net/mpec/K18/K18D63.html 1999 FN19
2013 US3 Goldstone SNRs 2013 US3: D = 0.2 km, P = 2.2 h, OC albedo = 0.1 DOY start date window RA, dec dist runs SNR/day SNR/run 112-113 2018 Apr 22-23 21:24-13:21 178, +64 0.038 766 35 1 113-114 2018 Apr 23-24 21:58-12:47 178, +59 0.035 775 47 2 Scheduled Apr 24 114-115 2018 Apr 24-25 22:26-12:17 179, +53 0.032 787 64 2 115-116 2018 Apr 25-26 22:51-11:49 179, +46 0.029 796 83 3 Scheduled Apr 26 116-117 2018 Apr 26-27 23:14-11:22 179, +38 0.028 794 100 4 117-118 2018 Apr 27-28 23:37-10:55 180, +29 0.026 775 120 5 118-119 2018 Apr 28-29 23:59-10:27 180, +19 0.026 732 130 5 120 2018 Apr 30 00:23-09:58 180, +10 0.026 665 120 5 121 2018 May 01 00:47-09:28 180, 0 0.027 580 96 4 Scheduled 122 2018 May 02 01:14-08:57 181, -8 0.029 487 69 3 123 2018 May 03 01:42-08:23 181, -16 0.031 392 46 3 Scheduled 124 2018 May 04 02:13-07:47 181, -22 0.033 300 28 2 125 2018 May 05 02:49-07:06 181, -28 0.036 212 16 1 Goldstone SNRs assume Ptx = 100 kW and Tsys = 17 K. 2013 US3 Arecibo SNRs start date window RA, dec dist runs SNR/day SNR/run 2018 Apr 28 00:54-03:11 179, +30 0.027 159 2600 220 2018 Apr 29 00:36-03:21 180, +21 0.026 199 3200 230 2018 Apr 30 00:39-03:10 180, +11 0.026 181 3000 230 2018 May 01 01:10-02:32 180, +1 0.027 95 1600 180 Arecibo SNRs assume Ptx = 400 kW and Tsys = 25 K ...Not scheduled at Arecibo due to a generator failure...
2008 TZ3 Goldstone SNRs 2008 TZ3: D = 0.26 km, P = 30 h, OC albedo = 0.1 DOY start date window RA, dec dist runs SNR/day SNR/run 120 2018 Apr 30 02:37-11:51 210, +6 0.051 329 44 3 121 2018 May 01 02:40-11:41 210, +4 0.046 356 66 4 Scheduled: Overlaps 2013 US3 122 2018 May 02 02:44-11:29 210, +1 0.041 387 100 6 123 2018 May 03 02:50-11:15 210, -2 0.036 421 160 9 Scheduled: Overlaps 2013 US3 124 2018 May 04 03:01-10:56 210, -7 0.032 453 260 14 125 2018 May 05 03:19-10:29 211, -13 0.027 476 430 22 126 2018 May 06 03:52-09:47 211, -20 0.023 459 690 35 127 2018 May 07 05:11-08:16 211, -31 0.020 279 790 48 Goldstone SNRs assume Ptx = 100 kW and Tsys = 17 K. 2008 TZ3 Arecibo SNRs start date window RA, dec dist runs SNR/day SNR/run 2018 Apr 15 03:32-06:15 210, +16 0.132 37 25 4 2018 Apr 16 03:28-06:11 210, +16 0.127 38 30 5 2018 Apr 17 03:25-06:07 210, +15 0.121 40 36 6 2018 Apr 18 03:21-06:03 210, +15 0.115 42 44 7 2018 Apr 19 03:17-05:59 210, +15 0.110 44 53 8 2018 Apr 20 03:14-05:55 210, +15 0.104 46 65 10 2018 Apr 21 03:10-05:50 210, +14 0.099 49 81 12 2018 Apr 22 03:07-05:46 210, +14 0.093 51 100 15 2018 Apr 23 03:03-05:41 210, +13 0.088 54 130 18 2018 Apr 24 03:00-05:37 210, +13 0.083 57 160 23 2018 Apr 25 02:57-05:32 210, +12 0.077 60 210 28 2018 Apr 26 02:55-05:26 210, +11 0.072 64 280 36 2018 Apr 27 02:53-05:21 210, +10 0.067 67 370 47 2018 Apr 28 02:51-05:14 210, +9 0.062 70 500 63 2018 Apr 29 02:51-05:07 210, +8 0.056 72 680 85 2018 Apr 30 02:52-04:58 210, +6 0.051 74 940 120 2018 May 01 02:57-04:46 210, +4 0.046 71 1300 170 2018 May 02 03:07-04:28 210, +1 0.042 59 1500 210 Arecibo SNRs assume Ptx = 400 kW and Tsys = 25 K ...Observations probably won't happen at Arecibo due to a generator failure...
1999 FN19 Goldstone SNRs 1999 FN19: D = 0.12 km, P = 26.8 h, OC albedo = 0.1 start date window RA, dec dist runs SNR/day SNR/run 2018 Apr 26-27 20:40-08:55 139, +39 0.042 527 31 1 2018 Apr 27-28 20:28-09:01 140, +42 0.040 574 41 2 2018 Apr 28-29 20:15-09:08 140, +45 0.037 629 54 2 2018 Apr 29-30 20:00-09:19 140, +49 0.035 693 71 3 2018 Apr 30-01 19:42-09:33 140, +53 0.033 770 94 4 2018 May 01-02 19:19-09:56 140, +58 0.031 865 125 5 2018 May 02-03 18:48-10:33 141, +63 0.029 987 163 6 Scheduled May 3 2018 May 03-04 18:01-11:56 141, +69 0.027 1172 211 7 2018 May 04-05 16:24-12:36 142, +76 0.026 1660 279 8 Scheduled May 4 2018 May 05-06 15:28-08:49 145, +83 0.025 1714 325 9 2018 May 06-07 21:13-03:10 195, +89 0.025 1741 350 8 Scheduled May 6-7 2018 May 07 05:03-23:01 307, +86 0.025 1747 353 9 2018 May 08 05:17-22:42 315, +79 0.025 1732 335 9 2018 May 10 05:21-21:32 318, +65 0.027 1094 225 7 2018 May 11 06:11-20:55 318, +58 0.028 951 178 6 Scheduled 2018 May 12 06:40-20:29 318, +53 0.030 843 137 5 2018 May 13 06:58-20:08 319, +48 0.032 756 104 4 2018 May 14 07:10-19:51 319, +43 0.034 682 79 3 2018 May 15 07:20-19:36 319, +39 0.036 619 60 3 2018 May 16 07:26-19:24 319, +36 0.038 565 45 2 2018 May 17 07:32-19:12 319, +33 0.041 518 35 2 2018 May 18 07:35-19:02 319, +30 0.043 477 27 1 Goldstone SNRs assume Ptx = 100 kW and Tsys = 17 K. Horizons = 20 deg on most days except at high declinations when they were adjusted to make the asteroid appear to set. 1999 FN19 Arecibo SNRs start date window RA, dec dist runs SNR/day SNR/run 2018 Apr 15 22:46-01:31 139, +22 0.073 67 80 10 2018 Apr 16 22:43-01:26 139, +23 0.070 70 94 12 2018 Apr 17 22:40-01:21 139, +24 0.067 72 110 14 2018 Apr 18 22:37-01:16 139, +25 0.065 74 130 16 2018 Apr 19 22:34-01:10 139, +26 0.062 76 150 18 2018 Apr 20 22:33-01:03 139, +28 0.059 78 180 22 2018 Apr 21 22:32-00:56 139, +29 0.056 78 210 26 2018 Apr 22 22:33-00:48 139, +31 0.053 76 250 31 2018 Apr 23 22:35-00:38 139, +32 0.050 73 290 37 2018 Apr 24 22:41-00:24 139, +34 0.048 66 300 42 2018 Apr 25 22:54-00:03 139, +36 0.045 47 270 42 ...too far north for Arecibo to track for a few weeks... 2018 May 17 09:08-11:00 319, +34 0.040 84 650 80 2018 May 18 08:53-11:08 319, +31 0.043 96 590 65 2018 May 19 08:43-11:10 319, +28 0.046 98 500 53 2018 May 20 08:35-11:11 319, +26 0.048 97 410 44 2018 May 21 08:29-11:09 319, +24 0.051 96 330 36 2018 May 22 08:24-11:07 319, +23 0.054 92 270 30 2018 May 23 08:19-11:04 319, +21 0.057 88 220 25 2018 May 24 08:15-11:01 319, +20 0.059 84 190 21 2018 May 25 08:11-10:57 320, +19 0.062 76 150 18 2018 May 26 08:07-10:52 320, +17 0.065 74 130 15 2018 May 27 08:04-10:48 320, +16 0.068 73 110 13 2018 May 28 08:01-10:43 320, +15 0.071 69 91 11 2018 May 29 07:58-10:39 320, +15 0.074 66 77 10 2018 May 30 07:55-10:34 320, +14 0.077 62 66 9 2018 May 31 07:52-10:29 320, +13 0.079 59 56 8 Arecibo SNRs assume Ptx = 400 kW and Tsys = 25 K. It's not clear if Arecibo will observe 1999 FN19 due to a generator failure.
Track Assignments
DOY BOA BOT EOT EOA 114 0230 0400 0835 0905 DSS-14 GSSR AST 2013 US3 116 0000 0130 0500 0530 DSS-14 GSSR AST 2013 US3 121 0230 0400 0630 0700 DSS-14 GSSR AST 13 US3/08 TZ3 123 0020 0150 0340 0410 DSS-14 GSSR AST FN19/US3/TZ3 124 1810 1940 2030 2100 DSS-14 GSSR AST 1999 FN19 126 2030 2200 0315 0345 DSS-14 GSSR AST 1999 FN19 131 1345 1515 1630 1700 DSS-14 GSSR AST 1999 FN19 Goldstone Schedule in more detail: Ptx=100 kW Observer UT UT PDT Round-trip Duration Monostatic DOY Date Target TX Window TX Window time (sec) hours SNR/RTT 114 Apr 24 2013 US3 0300-0835 2000-0135 Apr 23-24 35 5:35 2 start 30 minutes into precal Lance 116 Apr 26 2013 US3 0030-0500 1730-2200 Apr 25 29 4:30 3 start 30 minutes into precal Marina 121 May 01 2013 US3 0300-0630 2000-2330 Apr 30 27 3:30 4 start 30 minutes into precal Shantanu 2008 TZ3 0300-0630 2000-2330 Apr 30 46 3:30 4 start 30 minutes into precal 123 May 03 2013 US3 0145-0340 1845-2040 May 2 31 1:55 3 start 85 minutes into precal Marina 2008 TZ3 0250-0340 1950-2040 May 2 36 0:50 9 start when it rises to 20 degrees 1999 FN19 0050-0340 1750-2040 May 2 29 2:50 6 start 30 minutes into precal 124 May 04 1999 FN19 1840-2030 1140-1330 May 4 26 1:50 8 start 30 minutes into precal Lance 126 May 06-07 1999 FN19 2115-0315 1415-2015 May 6 25 6:00 8 start 45 minutes into precal Shantanu 131 May 11 1999 FN19 1415-1630 0715-0930 May 11 28 2:15 6 start 30 minutes into precal Marina
2013 US3 Elevations at Goldstone: Date__(UT)__HR:MN R.A._(a-appar)_DEC. Azi_(a-appr)_Elev delta 2018-Apr-24 03:00 Nm 178.17382 59.42427 33.7066 55.6736 0.03490841257718 2018-Apr-24 03:10 Nm 178.17253 59.38837 32.6576 56.8098 0.03488749690738 2018-Apr-24 03:20 Nm 178.17112 59.35234 31.4634 57.9141 0.03486662212394 2018-Apr-24 03:30 Am 178.16960 59.31619 30.1141 58.9815 0.03484578917731 2018-Apr-24 03:40 Am 178.16797 59.27992 28.5998 60.0066 0.03482499896729 2018-Apr-24 03:50 Am 178.16624 59.24352 26.9117 60.9833 0.03480425234113 2018-Apr-24 04:00 m 178.16443 59.20699 25.0418 61.9053 0.03478355009188 2018-Apr-24 04:10 m 178.16253 59.17033 22.9843 62.7656 0.03476289295684 2018-Apr-24 04:20 m 178.16056 59.13354 20.7362 63.5569 0.03474228161599 2018-Apr-24 04:30 m 178.15852 59.09661 18.2983 64.2717 0.03472171669067 2018-Apr-24 04:40 m 178.15644 59.05955 15.6762 64.9023 0.03470119874227 2018-Apr-24 04:50 m 178.15430 59.02235 12.8816 65.4412 0.03468072827106 2018-Apr-24 05:00 m 178.15213 58.98502 9.9324 65.8814 0.03466030571519 2018-Apr-24 05:10 m 178.14994 58.94755 6.8533 66.2166 0.03463993144973 2018-Apr-24 05:20 m 178.14772 58.90994 3.6754 66.4416 0.03461960578585 2018-Apr-24 05:30 m 178.14550 58.87219 0.4352 66.5527 0.03459932897016 2018-Apr-24 05:40 t 178.14328 58.83430 357.1724 66.5479 0.03457910118412 2018-Apr-24 05:50 m 178.14107 58.79627 353.9285 66.4269 0.03455892254364 2018-Apr-24 06:00 m 178.13888 58.75810 350.7435 66.1913 0.03453879309870 2018-Apr-24 06:10 m 178.13673 58.71980 347.6542 65.8445 0.03451871283324 2018-Apr-24 06:20 m 178.13461 58.68135 344.6923 65.3912 0.03449868166502 2018-Apr-24 06:30 m 178.13253 58.64277 341.8831 64.8373 0.03447869944575 2018-Apr-24 06:40 m 178.13052 58.60405 339.2451 64.1896 0.03445876596127 2018-Apr-24 06:50 m 178.12857 58.56520 336.7904 63.4554 0.03443888093181 2018-Apr-24 07:00 m 178.12669 58.52621 334.5252 62.6421 0.03441904401256 2018-Apr-24 07:10 m 178.12490 58.48709 332.4508 61.7572 0.03439925479412 2018-Apr-24 07:20 m 178.12319 58.44784 330.5645 60.8079 0.03437951280328 2018-Apr-24 07:30 m 178.12159 58.40846 328.8606 59.8009 0.03435981750383 2018-Apr-24 07:40 m 178.12009 58.36895 327.3314 58.7428 0.03434016829747 2018-Apr-24 07:50 m 178.11871 58.32932 325.9681 57.6394 0.03432056452495 2018-Apr-24 08:00 m 178.11746 58.28956 324.7610 56.4962 0.03430100546720 2018-Apr-24 08:10 m 178.11633 58.24968 323.7003 55.3182 0.03428149034666 2018-Apr-24 08:20 m 178.11534 58.20968 322.7762 54.1099 0.03426201832872 2018-Apr-24 08:30 m 178.11449 58.16957 321.9792 52.8754 0.03424258852322 2018-Apr-24 08:40 m 178.11380 58.12934 321.3005 51.6186 0.03422319998614 Date__(UT)__HR:MN R.A._(a-appar)_DEC. Azi_(a-appr)_Elev delta 2018-Apr-26 00:30 *m 178.86724 47.46792 52.7759 35.1900 0.02996555510722 2018-Apr-26 00:40 *m 178.86819 47.41930 53.3954 36.8096 0.02994915824469 2018-Apr-26 00:50 *m 178.86897 47.37060 53.9755 38.4433 0.02993279673519 2018-Apr-26 01:00 *m 178.86957 47.32180 54.5143 40.0901 0.02991647251447 2018-Apr-26 01:10 *m 178.87000 47.27292 55.0092 41.7490 0.02990018749500 2018-Apr-26 01:20 *m 178.87025 47.22394 55.4574 43.4188 0.02988394356241 2018-Apr-26 01:30 *m 178.87035 47.17487 55.8554 45.0987 0.02986774257185 2018-Apr-26 01:40 *m 178.87028 47.12569 56.1992 46.7874 0.02985158634441 2018-Apr-26 01:50 *m 178.87006 47.07641 56.4838 48.4838 0.02983547666363 2018-Apr-26 02:00 *m 178.86968 47.02702 56.7034 50.1867 0.02981941527209 2018-Apr-26 02:10 *m 178.86916 46.97751 56.8511 51.8947 0.02980340386800 2018-Apr-26 02:20 *m 178.86850 46.92790 56.9186 53.6065 0.02978744410195 2018-Apr-26 02:30 Cm 178.86770 46.87816 56.8956 55.3204 0.02977153757367 2018-Apr-26 02:40 Cm 178.86677 46.82831 56.7700 57.0347 0.02975568582896 2018-Apr-26 02:50 Cm 178.86572 46.77833 56.5267 58.7471 0.02973989035662 2018-Apr-26 03:00 Nm 178.86455 46.72822 56.1475 60.4554 0.02972415258560 2018-Apr-26 03:10 Nm 178.86328 46.67799 55.6096 62.1566 0.02970847388214 2018-Apr-26 03:20 Nm 178.86189 46.62763 54.8848 63.8472 0.02969285554712 2018-Apr-26 03:30 Am 178.86042 46.57713 53.9378 65.5231 0.02967729881349 2018-Apr-26 03:40 Am 178.85885 46.52650 52.7240 67.1788 0.02966180484379 2018-Apr-26 03:50 Am 178.85720 46.47573 51.1872 68.8074 0.02964637472791 2018-Apr-26 04:00 Am 178.85548 46.42482 49.2560 70.4003 0.02963100948083 2018-Apr-26 04:10 m 178.85369 46.37377 46.8402 71.9459 0.02961571004067 2018-Apr-26 04:20 m 178.85184 46.32258 43.8273 73.4287 0.02960047726673 2018-Apr-26 04:30 m 178.84994 46.27125 40.0803 74.8284 0.02958531193780 2018-Apr-26 04:40 m 178.84799 46.21978 35.4423 76.1178 0.02957021475056 2018-Apr-26 04:50 m 178.84602 46.16816 29.7539 77.2613 0.02955518631810 2018-Apr-26 05:00 m 178.84401 46.11639 22.8969 78.2147 0.02954022716872 High elevations at the end of the track could cause trouble. 2018-May-01 03:00 C 180.23855 0.99064 130.7725 43.8128 0.02694015116227 2018-May-01 03:10 N 180.23754 0.92759 133.6310 45.2765 0.02694801053919 2018-May-01 03:20 N 180.23646 0.86458 136.6355 46.6668 0.02695595999821 2018-May-01 03:30 Nm 180.23532 0.80159 139.7927 47.9759 0.02696400094462 2018-May-01 03:40 Am 180.23411 0.73865 143.1072 49.1955 0.02697213467081 2018-May-01 03:50 Am 180.23285 0.67574 146.5814 50.3170 0.02698036235365 2018-May-01 04:00 Am 180.23154 0.61286 150.2144 51.3314 0.02698868505219 2018-May-01 04:10 m 180.23019 0.55003 154.0014 52.2296 0.02699710370550 2018-May-01 04:20 m 180.22880 0.48723 157.9331 53.0030 0.02700561913080 2018-May-01 04:30 m 180.22739 0.42447 161.9953 53.6432 0.02701423202180 2018-May-01 04:40 m 180.22595 0.36174 166.1684 54.1428 0.02702294294727 2018-May-01 04:50 m 180.22449 0.29906 170.4280 54.4956 0.02703175234992 2018-May-01 05:00 m 180.22302 0.23642 174.7457 54.6971 0.02704066054542 2018-May-01 05:10 t 180.22154 0.17382 179.0899 54.7445 0.02704966772177 2018-May-01 05:20 m 180.22006 0.11126 183.4277 54.6370 0.02705877393885 2018-May-01 05:30 m 180.21859 0.04874 187.7264 54.3760 0.02706797912825 2018-May-01 05:40 m 180.21714 -0.01374 191.9553 53.9646 0.02707728309335 2018-May-01 05:50 m 180.21570 -0.07618 196.0872 53.4080 0.02708668550964 2018-May-01 06:00 m 180.21429 -0.13857 200.0993 52.7126 0.02709618592528 2018-May-01 06:10 m 180.21291 -0.20091 203.9738 51.8862 0.02710578376195 2018-May-01 06:20 m 180.21156 -0.26322 207.6980 50.9370 0.02711547831589 2018-May-01 06:30 m 180.21026 -0.32547 211.2642 49.8739 0.02712526875924 2018-May-03 01:50 * 180.73290 -14.86160 128.1652 21.4657 0.03054658815517 2018-May-03 02:00 * 180.73261 -14.91127 130.1813 23.0119 0.03056200758417 2018-May-03 02:10 * 180.73223 -14.96087 132.2619 24.5103 0.03057749437871 2018-May-03 02:20 * 180.73177 -15.01039 134.4099 25.9573 0.03059305047940 2018-May-03 02:30 * 180.73122 -15.05984 136.6280 27.3491 0.03060867773675 2018-May-03 02:40 C 180.73058 -15.10922 138.9184 28.6817 0.03062437790762 2018-May-03 02:50 C 180.72988 -15.15852 141.2830 29.9510 0.03064015265175 2018-May-03 03:00 C 180.72910 -15.20774 143.7231 31.1527 0.03065600352857 2018-May-03 03:10 N 180.72825 -15.25688 146.2392 32.2825 0.03067193199411 2018-May-03 03:20 N 180.72735 -15.30594 148.8311 33.3357 0.03068793939821 2018-May-03 03:30 N 180.72638 -15.35492 151.4974 34.3081 0.03070402698185 2018-May-03 03:40 A 180.72537 -15.40382 154.2361 35.1951 0.03072019587475 2008 TZ3 Elevations at Goldstone Date__(UT)__HR:MN R.A._(a-appar)_DEC. Azi_(a-appr)_Elev delta 2018-May-01 03:00 C 210.12126 4.00548 103.0146 24.1640 0.04663988799154 2018-May-01 03:10 N 210.12086 3.98984 104.7116 26.1380 0.04660411182095 2018-May-01 03:20 N 210.12040 3.97418 106.4601 28.0963 0.04656837275134 2018-May-01 03:30 Nm 210.11986 3.95848 108.2666 30.0365 0.04653267329124 2018-May-01 03:40 Am 210.11926 3.94276 110.1381 31.9560 0.04649701588214 2018-May-01 03:50 Am 210.11858 3.92702 112.0823 33.8520 0.04646140289381 2018-May-01 04:00 Am 210.11785 3.91124 114.1072 35.7212 0.04642583661983 2018-May-01 04:10 m 210.11705 3.89543 116.2218 37.5600 0.04639031927305 2018-May-01 04:20 m 210.11619 3.87960 118.4355 39.3645 0.04635485298145 2018-May-01 04:30 m 210.11528 3.86374 120.7584 41.1302 0.04631943978402 2018-May-01 04:40 m 210.11431 3.84785 123.2013 42.8522 0.04628408162685 2018-May-01 04:50 m 210.11329 3.83193 125.7754 44.5249 0.04624878035941 2018-May-01 05:00 m 210.11222 3.81597 128.4923 46.1422 0.04621353773093 2018-May-01 05:10 m 210.11110 3.79999 131.3637 47.6970 0.04617835538713 2018-May-01 05:20 m 210.10994 3.78398 134.4008 49.1819 0.04614323486699 2018-May-01 05:30 m 210.10874 3.76795 137.6142 50.5884 0.04610817759985 2018-May-01 05:40 m 210.10750 3.75188 141.0129 51.9074 0.04607318490260 2018-May-01 05:50 m 210.10623 3.73578 144.6034 53.1291 0.04603825797718 2018-May-01 06:00 m 210.10492 3.71965 148.3889 54.2431 0.04600339790833 2018-May-01 06:10 m 210.10359 3.70349 152.3677 55.2388 0.04596860566140 2018-May-01 06:20 m 210.10224 3.68730 156.5327 56.1055 0.04593388208055 2018-May-01 06:30 m 210.10086 3.67108 160.8696 56.8327 0.04589922788716 2018-May-03 02:50 C 210.31109 -1.73260 107.4047 20.0506 0.03697637948412 2018-May-03 03:00 C 210.31088 -1.75794 109.1250 21.9746 0.03694229806147 2018-May-03 03:10 N 210.31057 -1.78333 110.8952 23.8779 0.03690825669079 2018-May-03 03:20 N 210.31018 -1.80876 112.7209 25.7581 0.03687425791233 2018-May-03 03:30 N 210.30970 -1.83424 114.6080 27.6125 0.03684030420034 2018-May-03 03:40 A 210.30913 -1.85976 116.5626 29.4380 0.03680639795828 1999 FN19 elevations at Goldstone Date__(UT)__HR:MN R.A._(a-appar)_DEC. Azi_(a-appr)_Elev delta 2018-May-03 00:50 * 140.58210 62.64775 21.3170 58.9400 0.02887013286215 2018-May-03 01:00 * 140.57901 62.68776 19.4969 59.6220 0.02885825679153 2018-May-03 01:10 * 140.57582 62.72768 17.5565 60.2393 0.02884642279538 2018-May-03 01:20 * 140.57251 62.76753 15.5021 60.7872 0.02883463124116 2018-May-03 01:30 * 140.56911 62.80730 13.3425 61.2613 0.02882288243854 2018-May-03 01:40 * 140.56562 62.84699 11.0894 61.6576 0.02881117663908 2018-May-03 01:50 * 140.56207 62.88659 8.7575 61.9726 0.02879951403588 2018-May-03 02:00 * 140.55845 62.92611 6.3638 62.2035 0.02878789476338 2018-May-03 02:10 * 140.55479 62.96554 3.9276 62.3482 0.02877631889729 2018-May-03 02:20 * 140.55109 63.00489 1.4698 62.4053 0.02876478645462 2018-May-03 02:30 *t 140.54737 63.04415 359.0120 62.3747 0.02875329739387 2018-May-03 02:40 C 140.54364 63.08332 356.5759 62.2567 0.02874185161524 2018-May-03 02:50 C 140.53991 63.12241 354.1822 62.0531 0.02873044896106 2018-May-03 03:00 C 140.53621 63.16141 351.8503 61.7662 0.02871908921623 2018-May-03 03:10 N 140.53253 63.20032 349.5972 61.3989 0.02870777210887 2018-May-03 03:20 N 140.52889 63.23915 347.4375 60.9552 0.02869649731099 2018-May-03 03:30 N 140.52531 63.27789 345.3829 60.4392 0.02868526443936 2018-May-03 03:40 A 140.52179 63.31655 343.4421 59.8555 0.02867407305636 2018-May-04 18:40 * 141.96212 73.29622 16.7926 26.8454 0.02642104501645 2018-May-04 18:50 * 141.97590 73.34555 17.1952 27.4667 0.02641278705331 2018-May-04 19:00 * 141.98931 73.39498 17.5714 28.0998 0.02640454079263 2018-May-04 19:10 * 142.00233 73.44448 17.9206 28.7436 0.02639630707429 2018-May-04 19:20 * 142.01495 73.49406 18.2419 29.3972 0.02638808674264 2018-May-04 19:30 * 142.02715 73.54371 18.5346 30.0595 0.02637988064494 2018-May-04 19:40 * 142.03894 73.59342 18.7979 30.7296 0.02637168962964 2018-May-04 19:50 * 142.05030 73.64318 19.0310 31.4062 0.02636351454478 2018-May-04 20:00 * 142.06123 73.69300 19.2332 32.0885 0.02635535623633 2018-May-04 20:10 * 142.07171 73.74287 19.4037 32.7752 0.02634721554656 2018-May-04 20:20 * 142.08174 73.79277 19.5416 33.4652 0.02633909331243 2018-May-04 20:30 * 142.09131 73.84271 19.6463 34.1575 0.02633099036401 2018-May-04 20:40 * 142.10042 73.89268 19.7169 34.8508 0.02632290752291 2018-May-04 20:50 * 142.10907 73.94267 19.7526 35.5440 0.02631484560073 2018-May-04 21:00 * 142.11725 73.99267 19.7528 36.2358 0.02630680539753 2018-May-04 21:10 * 142.12496 74.04268 19.7166 36.9251 0.02629878770035 2018-May-04 21:20 * 142.13221 74.09270 19.6433 37.6105 0.02629079328178 2018-May-04 21:30 * 142.13898 74.14271 19.5322 38.2909 0.02628282289849 2018-May-06 21:00 * 168.62147 88.22488 2.0828 34.9233 0.02488601167669 2018-May-06 21:10 * 169.50733 88.27372 2.0425 34.9845 0.02488388261513 2018-May-06 21:20 * 170.43961 88.32216 1.9997 35.0419 0.02488177635147 2018-May-06 21:30 * 171.42194 88.37018 1.9546 35.0956 0.02487969292140 2018-May-06 21:40 * 172.45830 88.41773 1.9077 35.1455 0.02487763235110 2018-May-06 21:50 * 173.55303 88.46477 1.8593 35.1915 0.02487559465719 2018-May-06 22:00 * 174.71083 88.51125 1.8096 35.2337 0.02487357984691 2018-May-06 22:10 * 175.93685 88.55711 1.7589 35.2720 0.02487158791809 2018-May-06 22:20 * 177.23665 88.60230 1.7077 35.3065 0.02486961885935 2018-May-06 22:30 * 178.61625 88.64673 1.6563 35.3372 0.02486767265024 2018-May-06 22:40 * 180.08211 88.69036 1.6048 35.3641 0.02486574926137 2018-May-06 22:50 * 181.64116 88.73308 1.5537 35.3874 0.02486384865463 2018-May-06 23:00 * 183.30075 88.77481 1.5032 35.4071 0.02486197078342 2018-May-06 23:10 * 185.06860 88.81546 1.4536 35.4233 0.02486011559289 2018-May-06 23:20 * 186.95270 88.85491 1.4053 35.4361 0.02485828302020 2018-May-06 23:30 * 188.96122 88.89305 1.3584 35.4457 0.02485647299482 2018-May-06 23:40 * 191.10226 88.92974 1.3133 35.4521 0.02485468543884 2018-May-06 23:50 * 193.38364 88.96483 1.2701 35.4555 0.02485292026733 2018-May-07 00:00 *t 195.81248 88.99818 1.2291 35.4561 0.02485117738865 2018-May-07 00:10 * 198.39482 89.02961 1.1906 35.4541 0.02484945670488 2018-May-07 00:20 * 201.13504 89.05895 1.1547 35.4496 0.02484775811214 2018-May-07 00:30 * 204.03520 89.08601 1.1216 35.4428 0.02484608150108 2018-May-07 00:40 * 207.09439 89.11060 1.0915 35.4339 0.02484442675724 2018-May-07 00:50 * 210.30800 89.13252 1.0645 35.4231 0.02484279376153 2018-May-07 01:00 * 213.66707 89.15159 1.0409 35.4107 0.02484118239066 2018-May-07 01:10 * 217.15783 89.16763 1.0207 35.3967 0.02483959251759 2018-May-07 01:20 * 220.76150 89.18048 1.0040 35.3816 0.02483802401205 2018-May-07 01:30 * 224.45449 89.19002 0.9909 35.3654 0.02483647674098 2018-May-07 01:40 * 228.20901 89.19614 0.9814 35.3485 0.02483495056905 2018-May-07 01:50 * 231.99420 89.19879 0.9757 35.3310 0.02483344535914 2018-May-07 02:00 * 235.77750 89.19796 0.9738 35.3132 0.02483196097283 2018-May-07 02:10 * 239.52639 89.19368 0.9757 35.2953 0.02483049727094 2018-May-07 02:20 * 243.20997 89.18602 0.9813 35.2776 0.02482905411402 2018-May-07 02:30 * 246.80043 89.17511 0.9907 35.2602 0.02482763136287 2018-May-07 02:40 C 250.27415 89.16109 1.0037 35.2435 0.02482622887901 2018-May-07 02:50 C 253.61232 89.14413 1.0205 35.2277 0.02482484652524 2018-May-07 03:00 C 256.80114 89.12443 1.0408 35.2129 0.02482348416610 2018-May-07 03:10 N 259.83164 89.10219 1.0647 35.1994 0.02482214166840 2018-May-07 03:20 N 262.69921 89.07760 1.0919 35.1875 0.02482081890168 2018-May-11 14:10 *m 318.11067 58.20119 350.8791 66.7802 0.02800058869731 2018-May-11 14:20 *m 318.10723 58.15955 347.6560 66.4389 0.02801123488678 2018-May-11 14:30 *m 318.10383 58.11783 344.5665 65.9862 0.02802193018474 2018-May-11 14:40 *m 318.10051 58.07602 341.6385 65.4286 0.02803267441187 2018-May-11 14:50 *m 318.09725 58.03413 338.8928 64.7733 0.02804346732116 2018-May-11 15:00 *m 318.09408 57.99217 336.3424 64.0279 0.02805430859827 2018-May-11 15:10 *m 318.09101 57.95013 333.9939 63.2006 0.02806519786195 2018-May-11 15:20 *m 318.08804 57.90802 331.8480 62.2993 0.02807613466460 2018-May-11 15:30 *m 318.08519 57.86583 329.9016 61.3315 0.02808711849292 2018-May-11 15:40 *m 318.08246 57.82358 328.1479 60.3046 0.02809814876880 2018-May-11 15:50 *m 318.07987 57.78125 326.5782 59.2252 0.02810922485020 2018-May-11 16:00 *m 318.07742 57.73887 325.1824 58.0997 0.02812034603227 2018-May-11 16:10 *m 318.07512 57.69642 323.9500 56.9337 0.02813151154852 2018-May-11 16:20 *m 318.07298 57.65392 322.8699 55.7325 0.02814272057216 2018-May-11 16:30 *m 318.07101 57.61136 321.9315 54.5006 0.02815397221756
Uncertainties
2013 US3 JPL/Horizons solution 38, # obs: 141 (2013-2018): 2018 Apr 19 Date__(UT)__HR:MN R.A._(a-appar)_DEC. delta POS_3sigma DOP_S_3sig DOP_X_3sig RT_delay_3sig 2018-Apr-20 00:00 *m 176.14606 75.32032 0.04884884824528 1.496 0.53 1.93 0.000534 2018-Apr-21 00:00 *m 176.77417 72.38173 0.04522713358100 1.616 0.58 2.11 0.000530 2018-Apr-22 00:00 *m 177.30509 68.93604 0.04173151257452 1.753 0.64 2.34 0.000526 2018-Apr-23 00:00 *m 177.76419 64.87049 0.03840180206072 1.912 0.72 2.63 0.000522 2018-Apr-24 00:00 *m 178.16913 60.05337 0.03529047301640 2.098 0.82 2.99 0.000517 2018-Apr-25 00:00 *m 178.53256 54.34308 0.03246593957222 2.318 0.95 3.44 0.000511 2018-Apr-26 00:00 *m 178.86380 47.61307 0.03001489442292 2.579 1.10 3.99 0.000501 2018-Apr-27 00:00 *m 179.16993 39.80112 0.02804103961900 2.882 1.28 4.65 0.000487 2018-Apr-28 00:00 * 179.45650 30.98206 0.02665604591173 3.210 1.48 5.37 0.000466 2018-Apr-29 00:00 * 179.72796 21.43358 0.02595950546239 3.520 1.66 6.03 0.000439 2018-Apr-30 00:00 * 179.98801 11.63119 0.02601152674274 3.751 1.76 6.41 0.000407 2018-May-01 00:00 * 180.23981 2.13084 0.02681197149668 3.852 1.76 6.39 0.000374 2018-May-02 00:00 * 180.48609 -6.60378 0.02830107421297 3.816 1.64 5.98 0.000342 2018-May-03 00:00 * 180.72929 -14.31096 0.03038088909865 3.674 1.46 5.31 0.000317 2018-May-04 00:00 * 180.97157 -20.92872 0.03294241740774 3.469 1.26 4.57 0.000297 2018-May-05 00:00 * 181.21490 -26.52655 0.03588496533826 3.240 1.06 3.85 0.000283 JPL/Horizons solution 37, # obs: 138 (2013-2018) 2018 Apr 17 Date__(UT)__HR:MN R.A._(a-appar)_DEC. delta POS_3sigma DOP_S_3sig DOP_X_3sig RT_delay_3sig 2018-Apr-20 00:00 *m 176.14520 75.32043 0.04884898036906 7.746 1.79 6.49 0.001591 2018-Apr-21 00:00 *m 176.77340 72.38187 0.04522725537679 8.247 2.01 7.32 0.001637 2018-Apr-22 00:00 *m 177.30438 68.93619 0.04173162276172 8.765 2.26 8.23 0.001690 2018-Apr-23 00:00 *m 177.76354 64.87067 0.03840189902605 9.285 2.52 9.16 0.001751 2018-Apr-24 00:00 *m 178.16853 60.05357 0.03529055475643 9.784 2.76 10.02 0.001819 2018-Apr-25 00:00 *m 178.53200 54.34331 0.03246600367909 10.236 2.92 10.62 0.001889 2018-Apr-26 00:00 *m 178.86328 47.61333 0.03001493818525 10.634 2.95 10.73 0.001956 2018-Apr-27 00:00 *m 179.16945 39.80140 0.02804106034603 11.019 2.83 10.29 0.002008 2018-Apr-28 00:00 * 179.45604 30.98235 0.02665604156520 11.499 2.73 9.91 0.002032 2018-Apr-29 00:00 * 179.72752 21.43386 0.02595947549368 12.175 3.00 10.89 0.002013 2018-Apr-30 00:00 * 179.98760 11.63145 0.02601147270887 12.988 3.68 13.38 0.001944 2018-May-01 00:00 * 180.23942 2.13105 0.02681189694313 13.697 4.36 15.83 0.001832 2018-May-02 00:00 * 180.48572 -6.60361 0.02830098379850 14.069 4.69 17.04 0.001693 2018-May-03 00:00 * 180.72894 -14.31084 0.03038078752539 14.035 4.63 16.84 0.001545 2018-May-04 00:00 * 180.97123 -20.92863 0.03294230870621 13.664 4.31 15.66 0.001402 2018-May-05 00:00 * 181.21457 -26.52649 0.03588485262484 13.080 3.85 14.01 0.001272 2008 TZ3 JPL/Horizons solution 92, # obs: 352 (2008-2018) 2018 April 17 Date__(UT)__HR:MN R.A._(a-appar)_DEC. delta POS_3sigma DOP_S_3sig DOP_X_3sig RT_delay_3sig 2018-Apr-25 00:00 *m 209.92033 12.11600 0.07826293828486 0.647 0.09 0.31 0.000238 2018-Apr-26 00:00 *m 209.93297 11.31112 0.07297313777625 0.696 0.08 0.30 0.000240 2018-Apr-27 00:00 *m 209.95105 10.36296 0.06772770829618 0.752 0.08 0.29 0.000242 2018-Apr-28 00:00 * 209.97609 9.23863 0.06252983651510 0.819 0.08 0.28 0.000243 2018-Apr-29 00:00 * 210.00999 7.89423 0.05738459525341 0.898 0.08 0.28 0.000244 2018-Apr-30 00:00 * 210.05519 6.26994 0.05229975643857 0.994 0.08 0.30 0.000245 2018-May-01 00:00 * 210.11504 4.28256 0.04728707620607 1.111 0.09 0.34 0.000246 2018-May-02 00:00 * 210.19424 1.81371 0.04236439849905 1.259 0.12 0.45 0.000246 2018-May-03 00:00 * 210.29980 -1.30884 0.03755921405237 1.448 0.18 0.65 0.000244 2018-May-04 00:00 * 210.44266 -5.34085 0.03291486131741 1.696 0.27 0.99 0.000241 2018-May-05 00:00 * 210.64106 -10.66614 0.02850154334533 2.030 0.43 1.58 0.000234 2018-May-06 00:00 * 210.92795 -17.85182 0.02443574021449 2.488 0.71 2.58 0.000221 2018-May-07 00:00 * 211.36969 -27.66477 0.02091154516875 3.097 1.16 4.22 0.000199 2018-May-08 00:00 * 212.12312 -40.85206 0.01823562949223 3.814 1.80 6.54 0.000164 1999 FN19 JPL/Horizons solution 55, # obs: 250 (1999-2018) 2018 April 17 Date__(UT)__HR:MN R.A._(a-appar)_DEC. delta POS_3sigma DOP_S_3sig DOP_X_3sig RT_delay_3sig 2018-May-01 00:00 * 139.99637 52.53766 0.03276563080584 1.282 0.41 1.48 0.000279 2018-May-02 00:00 * 140.24413 57.18301 0.03073746964842 1.491 0.51 1.85 0.000265 2018-May-03 00:00 * 140.59535 62.44668 0.02893012750791 1.727 0.63 2.30 0.000248 2018-May-04 00:00 * 141.14761 68.35568 0.02739003410910 1.980 0.77 2.79 0.000227 2018-May-05 00:00 * 142.18742 74.88873 0.02616660251500 2.232 0.91 3.30 0.000203 2018-May-06 00:00 * 145.06295 81.94899 0.02530739692942 2.460 1.03 3.76 0.000175 2018-May-07 00:00 * 195.81248 88.99818 0.02485117738865 2.634 1.12 4.09 0.000147 2018-May-08 00:00 * 312.50485 82.90034 0.02482046010644 2.731 1.16 4.22 0.000122 2018-May-09 00:00 * 316.06530 75.43832 0.02521643604890 2.740 1.14 4.13 0.000106 2018-May-10 00:00 * 317.23294 68.30920 0.02601867921152 2.670 1.06 3.86 0.000103 2018-May-11 00:00 * 317.83035 61.70040 0.02718980380549 2.539 0.95 3.46 0.000111 2018-May-12 00:00 * 318.20306 55.71057 0.02868282305346 2.374 0.83 3.00 0.000126 2018-May-13 00:00 * 318.46344 50.36689 0.03044830447028 2.195 0.70 2.55 0.000143 2018-May-14 00:00 *m 318.65884 45.64637 0.03243949860821 2.017 0.59 2.14 0.000160 2018-May-15 00:00 *m 318.81270 41.49742 0.03461509033841 1.850 0.49 1.78 0.000174
2013 US3 Apparent Magnitudes, Solar Elongations, Lunar Elongations, and Lunar Illumination: Date__(UT)__HR:MN R.A._(a-appar)_DEC. delta APmag S-O-T /r T-O-M/Illu% 2018-Apr-20 00:00 175.98481 75.32431 0.04887354207391 17.58 91.1140 /T 72.6/ 19.0 2018-Apr-21 00:00 176.62844 72.38738 0.04525168220961 17.34 93.2446 /T 67.8/ 28.9 2018-Apr-22 00:00 177.17218 68.94382 0.04175584424383 17.09 95.7754 /T 62.7/ 39.8 2018-Apr-23 00:00 177.64207 64.88107 0.03842580265075 16.81 98.7888 /T 57.3/ 51.2 2018-Apr-24 00:00 178.05622 60.06760 0.03531396584374 16.51 102.3751 /T 51.7/ 62.4 2018-Apr-25 00:00 178.42760 54.36205 0.03248865949366 16.20 106.6187 /T 45.9/ 72.9 2018-Apr-26 00:00 178.76578 47.63797 0.03003646117218 15.88 111.5668 /T 40.4/ 82.1 2018-Apr-27 00:00 179.07804 39.83296 0.02806094541142 15.57 117.1728 /T 36.2/ 89.7 2018-Apr-28 00:00 179.37004 31.02123 0.02667368521031 15.29 123.2170 /T 34.7/ 95.2 2018-Apr-29 00:00 179.64637 21.47933 0.02597427343874 15.07 129.2448 /T 37.3/ 98.6 2018-Apr-30 00:00 179.91081 11.68152 0.02602297181348 14.93 134.6064 /T 43.8/ 99.8 2018-May-01 00:00 180.16659 2.18297 0.02681992298240 14.89 138.6625 /T 52.6/ 98.8 2018-May-02 00:00 180.41650 -6.55243 0.02830566210415 14.95 141.0751 /T 62.3/ 95.9 2018-May-03 00:00 180.66302 -14.26222 0.03038245736273 15.08 141.9484 /T 72.0/ 91.2 2018-May-04 00:00 180.90837 -20.88350 0.03294140358041 15.26 141.6914 /T 81.2/ 85.1 2018-May-05 00:00 181.15452 -26.48509 0.03588180822901 15.48 140.7631 /T 89.8/ 77.7 2018-May-06 00:00 181.40329 -31.19601 0.03911975142864 15.70 139.5166 /T 97.7/ 69.4 2018-May-07 00:00 181.65630 -35.15799 0.04258917153412 15.92 138.1727 /T 105.1/ 60.4 2018-May-08 00:00 181.91503 -38.50199 0.04623953662811 16.14 136.8516 /T 111.9/ 51.0 2018-May-09 00:00 182.18086 -41.33981 0.05003263629545 16.34 135.6115 /T 118.1/ 41.4 2018-May-10 00:00 182.45502 -43.76324 0.05393961482374 16.54 134.4754 /T 123.5/ 31.9 2018-May-11 00:00 182.73867 -45.84627 0.05793858049086 16.72 133.4481 /T 127.8/ 22.9 2018-May-12 00:00 183.03286 -47.64811 0.06201279246901 16.90 132.5253 /T 130.8/ 14.8 2018-May-13 00:00 183.33855 -49.21615 0.06614932200729 17.06 131.6989 /T 131.9/ 8.1 2018-May-14 00:00 183.65663 -50.58839 0.07033807295801 17.21 130.9596 /T 131.0/ 3.2 2018-May-15 00:00 183.98785 -51.79553 0.07457106558292 17.36 130.2976 /T 127.8/ 0.5 2008 TZ3 Date__(UT)__HR:MN R.A._(a-appar)_DEC. delta APmag S-O-T /r T-O-M/Illu% 2018-Apr-20 00:00 209.88191 14.71455 0.10533299966913 16.84 153.7791 /L 119.4/ 19.0 2018-Apr-21 00:00 209.88269 14.34375 0.09983290690722 16.71 153.8647 /L 106.3/ 28.9 2018-Apr-22 00:00 209.88369 13.91157 0.09437560609481 16.58 153.9824 /L 93.1/ 39.8 2018-Apr-23 00:00 209.88573 13.40815 0.08896027795691 16.44 154.1417 /T 79.9/ 51.2 2018-Apr-24 00:00 209.88969 12.82130 0.08358649308202 16.30 154.3542 /T 66.8/ 62.4 2018-Apr-25 00:00 209.89653 12.13577 0.07825435939031 16.14 154.6338 /T 54.0/ 72.9 2018-Apr-26 00:00 209.90733 11.33214 0.07296471325499 15.97 154.9981 /T 41.4/ 82.1 2018-Apr-27 00:00 209.92331 10.38540 0.06771937739720 15.79 155.4688 /T 29.6/ 89.7 2018-Apr-28 00:00 209.94595 9.26270 0.06252152387684 15.59 156.0735 /T 19.3/ 95.2 2018-Apr-29 00:00 209.97705 7.92018 0.05737620627586 15.38 156.8475 /T 14.1/ 98.6 2018-Apr-30 00:00 210.01897 6.29807 0.05229117074505 15.14 157.8361 /T 18.1/ 99.8 2018-May-01 00:00 210.07488 4.31325 0.04727813829825 14.88 159.0967 /T 27.2/ 98.8 2018-May-02 00:00 210.14929 1.84739 0.04235490432037 14.59 160.6982 /T 37.6/ 95.9 2018-May-03 00:00 210.24887 -1.27169 0.03754889181651 14.26 162.7078 /T 48.2/ 91.2 2018-May-04 00:00 210.38405 -5.29975 0.03290334528429 13.88 165.1237 /T 58.6/ 85.1 2018-May-05 00:00 210.57223 -10.62085 0.02848834279414 13.48 167.5813 /T 68.7/ 77.7 2018-May-06 00:00 210.84480 -17.80299 0.02442022131453 13.11 168.3445 /T 78.0/ 69.4 2018-May-07 00:00 211.26501 -27.61538 0.02089299359998 12.92 164.0261 /T 86.1/ 60.4 2018-May-08 00:00 211.98240 -40.80993 0.01821356519176 12.94 153.7228 /T 91.6/ 51.0 2018-May-09 00:00 213.45642 -57.28648 0.01678288095177 13.17 138.9324 /T 92.7/ 41.4 2018-May-10 00:00 218.11117 -74.98823 0.01691149149059 13.64 122.3654 /T 88.8/ 31.9 2018-May-11 00:00 328.47620 -87.57594 0.01855895926655 14.29 107.3448 /L 81.9/ 22.9 2018-May-12 00:00 21.46628 -76.09371 0.02137021093860 14.99 95.6253 /L 75.1/ 14.8 2018-May-13 00:00 25.12536 -66.83597 0.02494946948168 15.65 87.1066 /L 70.2/ 8.1 2018-May-14 00:00 26.42236 -60.00551 0.02900938485385 16.23 81.0196 /L 68.1/ 3.2 2018-May-15 00:00 27.08921 -54.89571 0.03337131061403 16.73 76.6407 /L 69.1/ 0.5 1999 FN19 Date__(UT)__HR:MN R.A._(a-appar)_DEC. delta APmag S-O-T /r T-O-M/Illu% 2018-Apr-25 00:00 139.28478 34.33824 0.04772682574755 18.66 96.0123 /T 25.9/ 72.9 2018-Apr-26 00:00 139.34126 36.51436 0.04503160242536 18.60 94.3780 /T 38.4/ 82.1 2018-Apr-27 00:00 139.41358 38.96341 0.04239514100231 18.53 92.6775 /T 51.5/ 89.7 2018-Apr-28 00:00 139.50398 41.73205 0.03983270783586 18.47 90.9032 /T 64.7/ 95.2 2018-Apr-29 00:00 139.61612 44.87420 0.03736322470238 18.41 89.0491 /T 77.6/ 98.6 2018-Apr-30 00:00 139.75615 48.45043 0.03501005309286 18.35 87.1132 /T 89.9/ 99.8 2018-May-01 00:00 139.93477 52.52579 0.03280182305723 18.30 85.1006 /T 101.2/ 98.8 2018-May-02 00:00 140.17168 57.16452 0.03077314131245 18.25 83.0297 /T 111.0/ 95.9 2018-May-03 00:00 140.50652 62.42022 0.02896484547025 18.22 80.9381 /T 118.4/ 91.2 2018-May-04 00:00 141.03123 68.32011 0.02742325053141 18.20 78.8912 /T 122.2/ 85.1 2018-May-05 00:00 142.01508 74.84349 0.02619766454225 18.20 76.9864 /T 121.7/ 77.7 2018-May-06 00:00 144.71782 81.89542 0.02533558938789 18.22 75.3487 /T 117.0/ 69.4 2018-May-07 00:00 191.25070 88.99314 0.02487580326066 18.24 74.1107 /T 109.1/ 60.4 2018-May-08 00:00 312.76846 82.98019 0.02484094363988 18.28 73.3789 /L 99.5/ 51.0 2018-May-09 00:00 316.20503 75.52088 0.02523241270708 18.32 73.1995 /L 89.5/ 41.4 2018-May-10 00:00 317.32550 68.39288 0.02603003585939 18.37 73.5453 /L 80.5/ 31.9 2018-May-11 00:00 317.89841 61.78290 0.02719665773658 18.42 74.3308 /L 73.5/ 22.9 2018-May-12 00:00 318.25614 55.79006 0.02868545898952 18.47 75.4436 /L 69.7/ 14.8 2018-May-13 00:00 318.50641 50.44218 0.03044710067167 18.53 76.7746 /L 69.6/ 8.1 2018-May-14 00:00 318.69454 45.71688 0.03243486503384 18.59 78.2344 /L 73.3/ 3.2 2018-May-15 00:00 318.84289 41.56299 0.03460742727024 18.65 79.7578 /L 80.1/ 0.5 2018-May-16 00:00 318.96380 37.91701 0.03692977672238 18.72 81.3012 /L 89.2/ 0.5 2018-May-17 00:00 319.06465 34.71370 0.03937301648821 18.78 82.8376 /L 99.7/ 3.3 2018-May-18 00:00 319.15017 31.89184 0.04191362861010 18.85 84.3516 /L 110.6/ 8.8 2018-May-19 00:00 319.22352 29.39683 0.04453257456260 18.91 85.8352 /L 121.2/ 16.6 2018-May-20 00:00 319.28690 27.18132 0.04721442714577 18.97 87.2850 /L 130.7/ 26.3
Setups
CW setup: --------------------------------------------------------------------------- TX polarization RCP RCV polarization LCP & RCP Frequency hops: no hopping Bandwidth: 5000 Hz TXoffset +500 Hz FFT for PFS files: 500 for 10.0 Hz resolution Ranging setups: --------------------------------------------------------------------------- 10-usec baud 10 usec code 127 PRP 1270 usec FFT 64 ncoh 1 bandwidth 787 Hz resolution 12.3 Hz TXOFF +100 Hz (echo in column 32 + 8 = 40) --------------------------------------------------------------------------- 11-usec baud 11 usec code 127 PRP 1397 usec FFT 64 ncoh 1 bandwidth 716 Hz resolution 11.2 Hz TXOFF +100 Hz (echo in column 32 + 9 = 41) ------------------------------------------------------------------------- 1-usec baud 1 usec code 255 ncoh 2 bandwidth 1960.8 Hz FFT 512 resolution 3.8 Hz TXOFF +200 Hz The 1 usec setup provides sufficient resolution to spatially resolve the asteroid into about 17 rows. ---------------------------------------------------------------------
Instructions
NOTE: Data should be moved to the appropriate subdirectories in aardvark:/export/data0/2013US3/raw/
POINTING:
OSOD and predicts will be on aardvark: ...not available yet... POINTING TX Offsets Date (UTC) DOY hhmmss RA Dec Macro LHA Dec RTT OSOD ... not available yet... Transmit offsets are given in millidegrees.
PRDX.OUT.14f-14-14.?? TRANSMITTER: STATION #14, RECEIVER: STATION #14 RECEIVER U.T. RANGE DOPPLER LHA DEC RA EL
GOLDSTONE MASTERLOG
============================================================================== Receive TX Setup hops dwell code ncoh FFT runs start -stop OSOD offset Poln Notes ------------------------------------------------------------------------------
Dr. Lance A. M. Benner | PHONE: (818) 354-7412 Mail Stop 183-601 | FAX: (818) 393-4445 Jet Propulsion Laboratory | email: lance.benner@jpl.nasa.gov California Institute of Technology | Plan: To live long and prosper Pasadena, CA 91109-8099 https://echo.jpl.nasa.gov/asteroids/2013US3/2013us3_planning.2018.html
Asteroid Radar Astronomy