Goldstone Radar Observations Planning: 1998 OK1, 1993 BX3, 2010 JE87, and 2016 CL136
1998 OK1 1993 BX3 Asteroid 65717 (1993 BX3) was discovered by Rob McNaught at Siding Spring observatory on January 31, 1993. It's absolute magnitude is 20.8 suggesting a size within a factor of two of 230 m. Lightcurves obtained Mottola et al. (1995) showed that its spin period was 20.463 h, and its lightcurve amplitude was 0.9 mag, suggesting a fairly elongated object. Petr Pravec et al. (http://www.asu.cas.cz/~ppravec/newres.txt) observed this asteroid in November 2020, and reported its spin period to be 20.294 +/- 0.004 h, with a lightcurve amplitude of 0.89 mag. 1993 BX3 has a long observing arc of over 28 years, between October 1992 to January 2021, which allowed a > 6-sigma detection of a A2, a non-gravitational acceleration parameter related to the Yarkovsky drift. Radar observations could allow us to estimate the size and albedo of this asteroid, confirm its elongation and spin period, and refine the estimate of the Yarkovsky drift. 2010 JE87 Asteroid 468727 (2010 JE87) was discovered by the Wide-field Infrared Survey Explorer (WISE) mission on May 10, 2010. Based on those observations Mainzer et al. (2011) estimate the diameter of the asteroid to be 308 +/- 16 m, and its optical albedo to be 0.108 +/- 0.027. It will make a close approach to Earth on January 25, 2021 at a distance of 0.040 au (15.7 lunar distances). Not much is known about this asteroid and the Goldstone radar observations should allow us to estimate its diameter and period, as well as refine its orbit. 2016 CL136
Orbital and Physical Characteristics Name 1998 OK1 1993 BX3 2010 JE87 2016 CL136 Asteroid number 363024 65717 468727 not numbered Discoverer LINEAR Siding Spring WISE Catalina Sky Survey Discovery date 1998-Jul-21 1993-Jan-31 2010-May-10 2016 Feb 8 Close approach (au) 0.0733 au 0.0473 au 0.0404 au 0.0353 au Close approach (LD) 28.5 LD 18.4 LD 15.7 LD 13.7 LD Close approach date 2021 January 21 2021 January 17 2021 January 25 2021 Feb 1 Orbit type Apollo Apollo Aten Aten semimajor axis 1.356 au 1.395 au 0.904 au 0.730 au eccentricity 0.429 0.281 0.437 0.622 inclination 14.0 deg 2.791 deg 16.9 deg 21.5 deg Orbital period 1.58 years 1.65 years 0.86 years 0.62 y perihelion distance 0.774 au 1.003 au 0.509 au 0.276 au aphelion distance 1.937 au 1.787 au 1.299 au 1.184 au MOID 0.0397 au 0.0477 au 0.0352 au 0.029 au absolute magnitude (H) 19.3 20.8 20.7 21.4 diameter 0.558 km (NEOWISE) unknown 0.308 km (NEOWISE) 0.12 km optical albedo 0.099 unknown 0.108 0.32 rotation period unknown 20.294 h (Pravec email) unknown unknown lightcurve amplitude unknown unknown unknown unknown pole direction unknown unknown unknown unknown spectral class unknown unknown unknown unknown PHA? Yes Yes Yes Yes LD = lunar distance (0.00257 au or 384,400 km) Last update: 2021 February 3
Goldstone Detection of (363024) 1998 OK1
Echo power spectrum from 1998 OK1 obtained on 2021 January 23.
Goldstone Detection of (65717) 1993 BX3
Echo power spectrum from 1993 BX3 obtained on 2021 January 29.Echo power spectrum from 1993 BX3 obtained on 2021 February 1.
Goldstone Detection of (468727) 2010 JE87
Echo power spectrum from 2010 JE87 obtained on 2021 January 27.
Goldstone Detection of 2016 CL136
Echo power spectrum from 2016 CL136 obtained on 2021 February 2.
1998 OK1 https://www.minorplanetcenter.net/mpec/J98/J98O13.html 1993 BX3 https://minorplanetcenter.net//iau/mpec/J98/J98F16.html 2010 JE87 https://minorplanetcenter.net//mpec/K10/K10J99.html 2016 CL136 https://www.minorplanetcenter.net/mpec/K16/K16CB5.html
Goldstone SNRs 1998 OK1 1998 OK1: D = 0.56 km, P = 2.1 h, OC albedo = 0.1 SNRs assume Ptx = 450 kW wk DOY Date (UT) window (UT) RA,DEC Dist. Runs SNR/day SNR/run 02 16 2021 JAN 16 18:35-03:45 346.6, 3 0.085 195 17 1 03 17 2021 JAN 17 18:25-04:05 348.7, 9 0.081 216 21 1 03 18 2021 JAN 18 18:15-04:25 351.0, 14 0.077 237 26 2 03 19 2021 JAN 19 18:05-04:45 353.7, 20 0.075 256 30 2 03 20 2021 JAN 20 17:55-05:10 356.7, 27 0.074 275 33 2 03 21 2021 JAN 21 17:50-05:35 0.1, 33 0.073 289 34 2 03 22 2021 JAN 22 17:45-06:05 4.0, 39 0.074 302 34 2 03 23 2021 JAN 23 17:35-06:40 8.5, 45 0.075 314 33 2 04 24 2021 JAN 24 17:35-07:15 13.7, 51 0.077 319 30 2 04 25 2021 JAN 25 17:30-07:55 19.6, 55 0.080 323 26 1 04 26 2021 JAN 26 17:30-08:40 26.4, 59 0.084 324 22 1 04 27 2021 JAN 27 17:35-09:25 33.8, 62 0.089 320 18 1 1993 BX3 1993 BX3: D = 0.22 km, P = 20.3 h, OC albedo = 0.1 wk DOY Date (UT) window (UT) RA,DEC Dist. Runs SNR/day SNR/run 04 24 2021 JAN 24 07:10-09:00 127.9,-33 0.050 66 48 6 04 25 2021 JAN 25 06:55-09:30 130.4,-32 0.050 92 54 6 04 26 2021 JAN 26 06:40-09:50 132.7,-30 0.051 112 57 5 04 27 2021 JAN 27 06:30-10:10 134.9,-29 0.052 127 57 5 04 28 2021 JAN 28 06:25-10:30 137.0,-28 0.053 139 56 5 04 29 2021 JAN 29 06:15-10:45 138.9,-27 0.054 151 55 4 04 30 2021 JAN 30 06:10-10:55 140.8,-25 0.055 156 52 4 05 31 2021 JAN 31 06:05-11:10 142.5,-24 0.056 164 50 4 05 32 2021 FEB 01 05:55-11:20 144.0,-23 0.057 171 47 4 05 33 2021 FEB 02 05:50-11:30 145.5,-22 0.058 175 44 3 05 34 2021 FEB 03 05:45-11:35 146.9,-21 0.060 176 41 3 05 35 2021 FEB 04 05:40-11:45 148.2,-19 0.061 179 38 3 05 36 2021 FEB 05 05:35-11:50 149.4,-18 0.063 180 35 3 05 37 2021 FEB 06 05:30-12:00 150.5,-17 0.064 182 32 2 06 38 2021 FEB 07 05:25-12:05 151.6,-16 0.066 182 30 2 06 39 2021 FEB 08 05:20-12:10 152.5,-15 0.067 182 27 2 06 40 2021 FEB 09 05:15-12:15 153.4,-14 0.069 182 25 2 06 41 2021 FEB 10 05:10-12:15 154.3,-13 0.071 180 23 2 06 42 2021 FEB 11 05:05-12:20 155.0,-12 0.073 179 20 2 2010 JE87 2010 JE87: D = 0.3 km, P = 2.1 h, OC albedo = 0.1 wk DOY Date (UT) window (UT) RA,DEC Dist. Runs SNR/day SNR/run 03 19 2021 JAN 19 15:00-21:10 272.7,-18 0.065 170 16 1 03 20 2021 JAN 20 14:30-21:25 271.2,-13 0.058 213 25 2 03 21 2021 JAN 21 13:55-21:40 269.4, -7 0.052 266 41 3 03 22 2021 JAN 22 13:15-21:55 267.3, 0 0.047 330 66 4 03 23 2021 JAN 23 12:35-22:05 264.7, 10 0.043 394 97 5 04 24 2021 JAN 24 11:55-22:20 261.6, 21 0.041 457 127 6 04 25 2021 JAN 25 11:10-22:30 257.6, 33 0.040 505 141 6 04 26 2021 JAN 26 10:15-22:40 252.6, 44 0.041 548 142 6 04 27 2021 JAN 27 09:15-22:50 246.1, 54 0.043 572 123 5 04 28 2021 JAN 28 08:05-22:55 237.4, 62 0.046 580 96 4 04 29 2021 JAN 29 06:40-23:00 226.0, 68 0.051 583 70 3 04 30 2021 JAN 30 04:55-23:10 211.8, 72 0.056 592 50 2 05 31 2021 JAN 31 02:55-20:40 157.6, 74 0.061 2642 76 1 2016 CL136 2016 CL136: D = 0.17 km, P = 2.2 h, OC albedo = 0.1 w DOY start date window RA, dec dist runs SNR/day SNR/run 4 28 2021 Jan 28 09:50-20:08 236, +19 0.057 332 19 1 4 29 2021 Jan 29 09:12-19:43 229, +23 0.049 393 33 2 4 30 2021 Jan 30 08:23-19:07 219, +27 0.043 466 58 3 4 31 2021 Jan 31 07:20-18:16 205, +30 0.038 541 95 4 5 32 2021 Feb 01 06:02-17:06 188, +33 0.036 593 130 6 5 33 2021 Feb 02 04:41-15:45 169, +33 0.036 592 130 6 Scheduled 0800-1345. 5 34 2021 Feb 03 03:30-14:28 152, +31 0.038 540 93 4 5 35 2021 Feb 04 02:38-13:25 139, +27 0.043 465 57 3 5 36 2021 Feb 05 02:02-12:36 129, +23 0.050 392 32 2 5 37 2021 Feb 06 01:36-11:59 122, +20 0.058 330 18 1 Actual diameter is probably closer to 0.12 km, so SNRs will be about 0.6x values above.
Track Assignments
DOY BOA BOT EOT EOA 020 1915 2045 2215 2245 DSS-14 GSSR AST 1998 OK1 022 2005 2135 2235 2305 DSS-14 GSSR AST 1998 OK1 023 0300 0430 0600 0630 DSS-14 GSSR AST 1998 OK1 025 0720 0850 1245 1315 DSS-14 GSSR 1993BX3/2010JE87 026 0515 0645 0945 1015 DSS-14 GSSR AST 1993 BX3 027 0755 0925 1130 1200 DSS-14 GSSR 1993BX3/2010JE87 028 0715 0845 1030 1100 DSS-14 GSSR 1993BX3/2010JE87 029 0515 0645 0930 1000 DSS-14 GSSR AST 1993 BX3 032 0730 0900 1115 1145 DSS-14 GSSR AST 1993 BX3 033 0600 0800 1345 1415 DSS-14 GSSR AST 2016 CL136 Goldstone tracks: UT UT PST Duration Round-trip DOY Date TX Window TX Window hh:mm time (sec) SNR/RTT 20 Jan 20 1998 OK1 2045-2215 1245-1415 Jan 20 1:30 74 2 SN 22 Jan 22 1998 OK1 2135-2235 1335-1435 Jan 22 1:00 74 2 MB 23 Jan 23 1998 OK1 0430-0600 2030-2200 Jan 22 1:30 75 2 SN 25 Jan 25 1993 BX3 0850-1245 0050-0445 Jan 25 3:55 50 6 Sets at 0930 UT MB 25 Jan 25 2010 JE87 0850-1245 0050-0445 Jan 25 3:55 40 6 Rises at 1110 UT MB 26 Jan 26 1993 BX3 0645-0945 2245-0145 Jan 25-26 3:00 51 5 SN 27 Jan 27 1993 BX3 0925-1130 0125-0330 Jan 27 2:05 53 5 Sets at 1010 UT MB 27 Jan 27 2010 JE87 0925-1130 0125-0330 Jan 27 2:05 43 5 MB 28 Jan 28 1993 BX3 0845-1030 0045-0230 Jan 28 1:45 53 5 LB 28 Jan 28 2010 JE87 0845-1030 0045-0230 Jan 28 1:45 46 4 LB 29 Jan 29 1993 BX3 0645-0930 2245-0130 Jan 28-29 2:45 54 4 LB 32 Feb 1 1993 BX3 0900-1115 0100-0315 Feb 01 2:15 57 4 LB 33 Feb 2 2016 CL136 0800-1345 0000-0545 Feb 02 5:45 36 6 SN 33 Feb 2 Tests 0905-1105 0105-0305 Feb 02 2:00 CL Feb. 2: we will switch to orbital debris tests from 0905-1105, when the elevations for 2016 CL136 will exceed 75 degrees and when tracking the asteroid will be difficult.
Uncertainties
1998 OK1 JPL/Horizons solution 49, # obs: 156 (1998-2020) 2021 Jan 16 Date__(UT)__HR:MN R.A._(a-appar)_DEC. delta POS_3sigma DOP_S_3sig DOP_X_3sig RT_delay_3sig 2021-Jan-15 00:00 343.10997 -5.30046 0.09567767777190 1.680 0.44 1.59 0.001179 2021-Jan-16 00:00 344.76225 -1.22013 0.09020759024193 1.782 0.50 1.82 0.001178 2021-Jan-17 00:00 346.58336 3.34355 0.08533612320452 1.902 0.61 2.24 0.001171 2021-Jan-18 00:00 348.60373 8.39933 0.08116045370479 2.046 0.80 2.91 0.001157 2021-Jan-19 00:00 350.85984 13.92145 0.07778249478737 2.217 1.06 3.85 0.001133 2021-Jan-20 00:00 353.39543 19.83710 0.07530007632245 2.410 1.37 4.99 0.001098 2021-Jan-21 00:00 356.26259 26.01989 0.07379482502789 2.612 1.70 6.19 0.001050 2021-Jan-22 00:00 359.52256 32.29514 0.07331910163169 2.801 2.00 7.28 0.000990 2021-Jan-23 00:00 3.24571 38.45957 0.07388602869351 2.955 2.23 8.09 0.000920 2021-Jan-24 00:00 7.50950 44.31037 0.07546650194123 3.056 2.34 8.52 0.000844 2021-Jan-25 00:00 12.39289 49.67329 0.07799449817265 3.097 2.35 8.54 0.000766 2021-Jan-26 00:00 17.96475 54.42017 0.08137848165709 3.080 2.26 8.23 0.000690 2021-Jan-27 00:00 24.26413 58.47334 0.08551470737762 3.017 2.11 7.68 0.000618 2021-Jan-28 00:00 31.27279 61.80107 0.09029869391644 2.921 1.92 6.99 0.000554 2021-Jan-29 00:00 38.88674 64.41038 0.09563304371387 2.803 1.72 6.26 0.000498 2021-Jan-30 00:00 46.90249 66.34087 0.10143157647285 2.674 1.52 5.53 0.000449 2021-Jan-31 00:00 55.03580 67.65934 0.10762067256211 2.541 1.33 4.84 0.000409 2021-Feb-01 00:00 62.97615 68.45287 0.11413889240496 2.409 1.16 4.22 0.000376 2021-Feb-02 00:00 70.45434 68.81875 0.12093572599100 2.282 1.01 3.66 0.000349 2021-Feb-03 00:00 77.28980 68.85331 0.12797003004798 2.162 0.87 3.16 0.000328 2021-Feb-04 00:00 83.40066 68.64288 0.13520846504058 2.048 0.75 2.73 0.000311 2021-Feb-05 00:00 88.78478 68.25888 0.14262408039846 1.943 0.65 2.36 0.000299 2021-Feb-06 00:00 93.49051 67.75694 0.15019510088724 1.844 0.56 2.03 0.000290 2021-Feb-07 00:00 97.59063 67.17851 0.15790391746839 1.753 0.48 1.75 0.000283 2021-Feb-08 00:00 101.16461 66.55351 0.16573626378644 1.668 0.42 1.51 0.000278 2021-Feb-09 00:00 104.28866 65.90299 0.17368055207062 1.590 0.36 1.30 0.000275 2021-Feb-10 00:00 107.03112 65.24150 0.18172734208308 1.517 0.31 1.13 0.000273 2021-Feb-11 00:00 109.45101 64.57891 0.18986891939041 1.450 0.27 0.98 0.000272 2021-Feb-12 00:00 111.59830 63.92176 0.19809896240021 1.387 0.23 0.85 0.000272 2021-Feb-13 00:00 113.51478 63.27425 0.20641228042416 1.329 0.20 0.74 0.000273 2021-Feb-14 00:00 115.23525 62.63898 0.21480460748428 1.274 0.18 0.65 0.000274 2021-Feb-15 00:00 116.78863 62.01741 0.22327243895681 1.223 0.16 0.58 0.000275 1993 BX3 JPL/Horizons solution 99, # obs: 478 (1992-2021) 2021 January 16 Date__(UT)__HR:MN R.A._(a-appar)_DEC. delta POS_3sigma DOP_S_3sig DOP_X_3sig RT_delay_3sig 2021-Jan-15 00:00 100.19379 -40.85104 0.04757466098039 0.674 0.13 0.48 0.000169 2021-Jan-16 00:00 103.43199 -40.48427 0.04741365816070 0.704 0.14 0.50 0.000167 2021-Jan-17 00:00 106.65498 -40.00346 0.04733803537031 0.733 0.14 0.52 0.000164 2021-Jan-18 00:00 109.84071 -39.41132 0.04734962771680 0.761 0.15 0.54 0.000161 2021-Jan-19 00:00 112.96846 -38.71271 0.04744984946379 0.787 0.15 0.56 0.000158 2021-Jan-20 00:00 116.01958 -37.91442 0.04763966806769 0.811 0.16 0.57 0.000155 2021-Jan-21 00:00 118.97804 -37.02484 0.04791959141086 0.833 0.16 0.58 0.000151 2021-Jan-22 00:00 121.83074 -36.05361 0.04828966902370 0.853 0.16 0.59 0.000148 2021-Jan-23 00:00 124.56760 -35.01125 0.04874950709314 0.871 0.16 0.60 0.000144 2021-Jan-24 00:00 127.18149 -33.90869 0.04929829630049 0.886 0.16 0.60 0.000141 2021-Jan-25 00:00 129.66800 -32.75695 0.04993485107279 0.898 0.16 0.60 0.000137 2021-Jan-26 00:00 132.02513 -31.56676 0.05065765865799 0.908 0.16 0.59 0.000133 2021-Jan-27 00:00 134.25289 -30.34833 0.05146493644773 0.915 0.16 0.58 0.000130 2021-Jan-28 00:00 136.35296 -29.11110 0.05235469598495 0.920 0.16 0.57 0.000126 2021-Jan-29 00:00 138.32830 -27.86361 0.05332481187444 0.922 0.15 0.56 0.000123 2021-Jan-30 00:00 140.18283 -26.61343 0.05437309320623 0.922 0.15 0.54 0.000120 2021-Jan-31 00:00 141.92118 -25.36712 0.05549735419619 0.921 0.14 0.52 0.000117 2021-Feb-01 00:00 143.54845 -24.13024 0.05669547995300 0.918 0.14 0.51 0.000115 2021-Feb-02 00:00 145.07002 -22.90746 0.05796548315266 0.913 0.13 0.48 0.000112 2021-Feb-03 00:00 146.49146 -21.70255 0.05930554825314 0.906 0.13 0.46 0.000110 2021-Feb-04 00:00 147.81835 -20.51858 0.06071406149539 0.899 0.12 0.44 0.000109 2021-Feb-05 00:00 149.05627 -19.35795 0.06218962667918 0.891 0.12 0.42 0.000107 2021-Feb-06 00:00 150.21066 -18.22253 0.06373106798260 0.881 0.11 0.40 0.000106 2021-Feb-07 00:00 151.28685 -17.11375 0.06533742174601 0.871 0.10 0.38 0.000105 2021-Feb-08 00:00 152.28996 -16.03265 0.06700791942723 0.860 0.10 0.36 0.000104 2021-Feb-09 00:00 153.22494 -14.98001 0.06874196423416 0.849 0.09 0.34 0.000103 2021-Feb-10 00:00 154.09647 -13.95634 0.07053910440054 0.837 0.09 0.33 0.000103 2021-Feb-11 00:00 154.90900 -12.96199 0.07239900646834 0.825 0.09 0.32 0.000103 2021-Feb-12 00:00 155.66675 -11.99711 0.07432143183965 0.812 0.08 0.30 0.000103 2021-Feb-13 00:00 156.37365 -11.06175 0.07630621897237 0.800 0.08 0.30 0.000104 2021-Feb-14 00:00 157.03340 -10.15583 0.07835327206241 0.787 0.08 0.29 0.000105 2021-Feb-15 00:00 157.64942 -9.27917 0.08046255543046 0.774 0.08 0.28 0.000105 2010 JE87 JPL/Horizons solution 31, # obs: 104 (2010-2016) 2021 January 16 Date__(UT)__HR:MN R.A._(a-appar)_DEC. delta POS_3sigma DOP_S_3sig DOP_X_3sig RT_delay_3sig 2021-Jan-15 00:00 278.22854 -33.06270 0.10252595924129 5.203 2.67 9.69 0.000667 2021-Jan-16 00:00 277.37484 -31.09422 0.09436851738533 5.648 2.92 10.63 0.000583 2021-Jan-17 00:00 276.43022 -28.74227 0.08641340605577 6.157 3.26 11.83 0.000499 2021-Jan-18 00:00 275.37640 -25.90699 0.07870052227717 6.740 3.68 13.36 0.000420 2021-Jan-19 00:00 274.18975 -22.45643 0.07128739831307 7.403 4.21 15.30 0.000364 2021-Jan-20 00:00 272.83935 -18.21810 0.06425707426070 8.145 4.87 17.71 0.000364 2021-Jan-21 00:00 271.28421 -12.97387 0.05772917890180 8.944 5.66 20.56 0.000445 2021-Jan-22 00:00 269.46913 -6.46948 0.05187388743402 9.736 6.49 23.60 0.000603 2021-Jan-23 00:00 267.31852 1.53682 0.04692464308269 10.395 7.18 26.10 0.000814 2021-Jan-24 00:00 264.72707 11.15031 0.04317644824026 10.727 7.34 26.68 0.001054 2021-Jan-25 00:00 261.54551 22.13670 0.04094474505912 10.554 6.55 23.82 0.001290 2021-Jan-26 00:00 257.55934 33.77217 0.04046808192761 9.891 4.80 17.46 0.001479 2021-Jan-27 00:00 252.45904 44.99367 0.04179639234700 8.990 2.78 10.12 0.001593 2021-Jan-28 00:00 245.80696 54.83963 0.04476201622530 8.121 1.64 5.96 0.001630 2021-Jan-29 00:00 237.03299 62.77033 0.04906421662620 7.380 1.80 6.56 0.001610 2021-Jan-30 00:00 225.56746 68.63697 0.05438405361483 6.745 2.14 7.79 0.001556 2021-Jan-31 00:00 211.31308 72.50606 0.06045246450047 6.185 2.27 8.27 0.001488 2021-Feb-01 00:00 195.37434 74.58518 0.06706686603799 5.681 2.25 8.17 0.001415 2021-Feb-02 00:00 179.96836 75.24896 0.07408248919113 5.228 2.14 7.79 0.001344 2021-Feb-03 00:00 166.93788 74.97837 0.08139777486724 4.823 2.01 7.29 0.001276 2021-Feb-04 00:00 156.77989 74.19857 0.08894151952714 4.460 1.87 6.78 0.001214 2021-Feb-05 00:00 149.10112 73.19150 0.09666337620608 4.136 1.73 6.30 0.001156 2021-Feb-06 00:00 143.29860 72.11379 0.10452728195674 3.847 1.61 5.86 0.001104 2021-Feb-07 00:00 138.85668 71.04385 0.11250701325938 3.588 1.50 5.46 0.001056 2021-Feb-08 00:00 135.39810 70.01759 0.12058319037506 3.355 1.40 5.10 0.001011 2021-Feb-09 00:00 132.65952 69.04920 0.12874124658358 3.146 1.32 4.79 0.000971 2021-Feb-10 00:00 130.45827 68.14207 0.13697003871204 2.958 1.24 4.51 0.000934 2021-Feb-11 00:00 128.66630 67.29452 0.14526088736223 2.786 1.17 4.26 0.000901 2021-Feb-12 00:00 127.19237 66.50256 0.15360690846494 2.631 1.11 4.04 0.000870 2021-Feb-13 00:00 125.97019 65.76139 0.16200254434755 2.489 1.06 3.83 0.000842 2021-Feb-14 00:00 124.95071 65.06612 0.17044323207624 2.359 1.01 3.65 0.000816 2021-Feb-15 00:00 124.09695 64.41208 0.17892516615033 2.240 0.96 3.49 0.000792 2016 CL136 JPL/Horizons solution 20, # obs: 136 (2016-2021) 2021 Jan 31 Date__(UT)__HR:MN R.A._(a-appar)_DEC. delta POS_3sigma DOP_S_3sig DOP_X_3sig RT_delay_3sig 2021-Jan-29 00:00 * 233.06655 20.57323 0.05408401982526 1.205 0.86 3.12 0.000211 2021-Jan-30 00:00 * 224.89890 24.16419 0.04672709044131 1.356 1.05 3.83 0.000205 2021-Jan-31 00:00 * 213.32154 28.22163 0.04069802617213 1.513 1.30 4.71 0.000200 2021-Feb-01 00:00 * 197.35873 31.86503 0.03667248494658 1.633 1.51 5.50 0.000197 2021-Feb-02 00:00 * 177.80721 33.41899 0.03535854963302 1.649 1.57 5.71 0.000194 * 2021-Feb-03 00:00 * 158.43081 31.90579 0.03706309668101 1.539 1.41 5.13 0.000191 2021-Feb-04 00:00 * 142.82674 28.40053 0.04143137029890 1.354 1.15 4.17 0.000188 2021-Feb-05 00:00 * 131.58603 24.53315 0.04775227238347 1.161 0.90 3.28 0.000185 2021-Feb-06 00:00 * 123.68401 21.12288 0.05537376551312 0.992 0.72 2.63 0.000183 JPL/Horizons solution 19, # obs: 128 (2016-2018) 2021 Jan 26 Date__(UT)__HR:MN R.A._(a-appar)_DEC. delta POS_3sigma DOP_S_3sig DOP_X_3sig RT_delay_3sig 2021-Jan-29 00:00 * 233.06568 20.57261 0.05408444782210 39.162 17.47 63.48 0.004621 2021-Jan-30 00:00 * 224.89802 24.16338 0.04672757447897 43.224 18.27 66.38 0.005287 2021-Jan-31 00:00 * 213.32077 28.22057 0.04069856170073 46.947 15.60 56.70 0.005929 2021-Feb-01 00:00 * 197.35832 31.86373 0.03667304919755 49.642 6.53 23.74 0.006345 2021-Feb-02 00:00 * 177.80742 33.41761 0.03535909610548 50.938 11.57 42.05 0.006263 * 2021-Feb-03 00:00 * 158.43157 31.90458 0.03706357415336 50.238 24.46 88.90 0.005602 2021-Feb-04 00:00 * 142.82773 28.39959 0.04143175228227 46.970 28.43 103.34 0.004621 2021-Feb-05 00:00 * 131.58701 24.53244 0.04775255973597 42.054 26.18 95.14 0.003623 2021-Feb-06 00:00 * 123.68490 21.12233 0.05537397127598 36.862 22.06 80.19 0.002754
Apparent Magnitudes, Solar Elongations, Lunar Elongations, and Lunar Illumination: 1998 OK1 Date__(UT)__HR:MN R.A._(a-appar)_DEC. APmag S-brt delta S-O-T /r T-O-M/MN_Illu% 2021-Jan-15 00:00 343.10997 -5.30046 20. 7. 0.09567767781285 47.3790 /T 25.4/ 4.0210 2021-Jan-16 00:00 344.76225 -1.22013 19. 7. 0.09020759028254 49.6045 /T 17.5/ 9.1717 2021-Jan-17 00:00 346.58336 3.34355 19. 7. 0.08533612324458 52.3586 /T 14.5/ 15.9298 2021-Jan-18 00:00 348.60373 8.39933 19. 7. 0.08116045374401 55.6810 /T 17.7/ 23.8820 2021-Jan-19 00:00 350.85984 13.92145 18.215 6.539 0.07778249482540 59.5769 /T 24.0/ 32.6462 2021-Jan-20 00:00 353.39543 19.83710 17.867 6.391 0.07530007635889 64.0029 /T 31.0/ 41.8855 2021-Jan-21 00:00 356.26259 26.01989 17.547 6.247 0.07379482506230 68.8590 /T 37.7/ 51.3045 2021-Jan-22 00:00 359.52256 32.29514 17.270 6.111 0.07331910166366 73.9938 /T 43.8/ 60.6353 2021-Jan-23 00:00 3.24571 38.45957 17.045 5.987 0.07388602872273 79.2245 /T 49.1/ 69.6190 2021-Jan-24 00:00 7.50950 44.31037 16.874 5.878 0.07546650196751 84.3673 /T 53.8/ 77.9876 2021-Jan-25 00:00 12.39289 49.67329 16.757 5.782 0.07799449819594 89.2660 /T 57.8/ 85.4507 2021-Jan-26 00:00 17.96475 54.42017 16.687 5.699 0.08137848167746 93.8103 /T 61.6/ 91.6921 2021-Jan-27 00:00 24.26413 58.47334 16.656 5.629 0.08551470739528 97.9395 /T 65.3/ 96.3782 2021-Jan-28 00:00 31.27279 61.80107 16.658 5.569 0.09029869393161 101.6347 /T 69.3/ 99.1834 2021-Jan-29 00:00 38.88674 64.41038 16.684 5.518 0.09563304372682 104.9073 /T 73.7/ 99.8288 2021-Jan-30 00:00 46.90249 66.34087 16.729 5.475 0.10143157648385 107.7862 /T 78.9/ 98.1300 2021-Jan-31 00:00 55.03580 67.65934 16.789 5.439 0.10762067257141 110.3094 /T 84.8/ 94.0400 2021-Feb-01 00:00 62.97615 68.45287 16.858 5.409 0.11413889241280 112.5168 /T 91.3/ 87.6767 2021-Feb-02 00:00 70.45434 68.81875 16.934 5.383 0.12093572599759 114.4473 /T 98.4/ 79.3242 2021-Feb-03 00:00 77.28980 68.85331 17.015 5.362 0.12797003005350 116.1362 /T 106.0/ 69.4105 2021-Feb-04 00:00 83.40066 68.64288 17.100 5.344 0.13520846504519 117.6150 /T 113.6/ 58.4687 2021-Feb-05 00:00 88.78478 68.25888 17.186 5.330 0.14262408040230 118.9110 /T 121.1/ 47.0930 2021-Feb-06 00:00 93.49051 67.75694 17.273 5.318 0.15019510089043 120.0476 /T 128.1/ 35.8975 2021-Feb-07 00:00 97.59063 67.17851 17.361 5.308 0.15790391747104 121.0449 /T 133.8/ 25.4778 2021-Feb-08 00:00 101.16461 66.55351 17.449 5.301 0.16573626378865 121.9199 /T 137.7/ 16.3756 2021-Feb-09 00:00 104.28866 65.90299 17.536 5.296 0.17368055207245 122.6870 /T 138.9/ 9.0427 2021-Feb-10 00:00 107.03112 65.24150 17.623 5.292 0.18172734208460 123.3585 /T 137.2/ 3.8081 2021-Feb-11 00:00 109.45101 64.57891 17.708 5.289 0.18986891939169 123.9450 /T 132.9/ 0.8553 2021-Feb-12 00:00 111.59830 63.92176 17.793 5.288 0.19809896240129 124.4554 /T 126.6/ 0.2152 2021-Feb-13 00:00 113.51478 63.27425 17.876 5.288 0.20641228042509 124.8974 /T 119.1/ 1.7808 2021-Feb-14 00:00 115.23525 62.63898 17.959 5.289 0.21480460748510 125.2775 /T 110.8/ 5.3390 2021-Feb-15 00:00 116.78863 62.01741 18.040 5.291 0.22327243895754 125.6015 /T 102.2/ 10.6101 1993 BX3 Date__(UT)__HR:MN R.A._(a-appar)_DEC. APmag S-brt delta S-O-T /r T-O-M/MN_Illu% 2021-Jan-15 00:00 100.19379 -40.85104 16.391 n.a. 0.04757466098056 116.0908 /T 108.3/ 4.0210 2021-Jan-16 00:00 103.43199 -40.48427 16.357 n.a. 0.04741365816087 117.0891 /T 106.3/ 9.1717 2021-Jan-17 00:00 106.65498 -40.00346 16.324 n.a. 0.04733803537047 118.1511 /T 104.3/ 15.9298 2021-Jan-18 00:00 109.84071 -39.41132 16.294 n.a. 0.04734962771695 119.2716 /T 102.1/ 23.8820 2021-Jan-19 00:00 112.96846 -38.71271 16.268 n.a. 0.04744984946393 120.4448 /T 99.5/ 32.6462 2021-Jan-20 00:00 116.01958 -37.91442 16.244 n.a. 0.04763966806783 121.6645 /T 96.6/ 41.8855 2021-Jan-21 00:00 118.97804 -37.02484 16.223 n.a. 0.04791959141099 122.9245 /T 93.2/ 51.3045 2021-Jan-22 00:00 121.83074 -36.05361 16.206 n.a. 0.04828966902382 124.2186 /T 89.2/ 60.6353 2021-Jan-23 00:00 124.56760 -35.01125 16.192 n.a. 0.04874950709326 125.5405 /T 84.6/ 69.6190 2021-Jan-24 00:00 127.18149 -33.90869 16.182 n.a. 0.04929829630060 126.8845 /L 79.4/ 77.9876 2021-Jan-25 00:00 129.66800 -32.75695 16.175 n.a. 0.04993485107289 128.2451 /L 73.7/ 85.4507 2021-Jan-26 00:00 132.02513 -31.56676 16.171 n.a. 0.05065765865809 129.6175 /L 67.5/ 91.6921 2021-Jan-27 00:00 134.25289 -30.34833 16.170 n.a. 0.05146493644782 130.9972 /L 61.0/ 96.3782 2021-Jan-28 00:00 136.35296 -29.11110 16.173 n.a. 0.05235469598504 132.3806 /L 54.7/ 99.1834 2021-Jan-29 00:00 138.32830 -27.86361 16.178 n.a. 0.05332481187452 133.7646 /L 49.1/ 99.8288 2021-Jan-30 00:00 140.18283 -26.61343 16.186 n.a. 0.05437309320631 135.1465 /L 45.0/ 98.1300 2021-Jan-31 00:00 141.92118 -25.36712 16.196 n.a. 0.05549735419627 136.5246 /L 43.2/ 94.0400 2021-Feb-01 00:00 143.54845 -24.13024 16.209 n.a. 0.05669547995308 137.8974 /L 44.5/ 87.6767 2021-Feb-02 00:00 145.07002 -22.90746 16.224 n.a. 0.05796548315274 139.2640 /L 49.0/ 79.3242 2021-Feb-03 00:00 146.49146 -21.70255 16.240 n.a. 0.05930554825322 140.6236 /L 56.0/ 69.4105 2021-Feb-04 00:00 147.81835 -20.51858 16.258 n.a. 0.06071406149547 141.9760 /L 64.8/ 58.4687 2021-Feb-05 00:00 149.05627 -19.35795 16.278 n.a. 0.06218962667926 143.3210 /L 74.9/ 47.0930 2021-Feb-06 00:00 150.21066 -18.22253 16.299 n.a. 0.06373106798269 144.6583 /L 85.7/ 35.8975 2021-Feb-07 00:00 151.28685 -17.11375 16.320 n.a. 0.06533742174610 145.9880 /L 97.0/ 25.4778 2021-Feb-08 00:00 152.28996 -16.03265 16.343 n.a. 0.06700791942732 147.3100 /L 108.5/ 16.3756 2021-Feb-09 00:00 153.22494 -14.98001 16.367 n.a. 0.06874196423425 148.6242 /L 120.0/ 9.0427 2021-Feb-10 00:00 154.09647 -13.95634 16.391 n.a. 0.07053910440064 149.9304 /L 131.2/ 3.8081 2021-Feb-11 00:00 154.90900 -12.96199 16.416 n.a. 0.07239900646844 151.2284 /L 141.5/ 0.8553 2021-Feb-12 00:00 155.66675 -11.99711 16.441 n.a. 0.07432143183977 152.5180 /L 150.2/ 0.2152 2021-Feb-13 00:00 156.37365 -11.06175 16.467 n.a. 0.07630621897249 153.7987 /L 155.4/ 1.7808 2021-Feb-14 00:00 157.03340 -10.15583 16.492 n.a. 0.07835327206254 155.0704 /L 155.0/ 5.3390 2021-Feb-15 00:00 157.64942 -9.27917 16.518 n.a. 0.08046255543060 156.3325 /L 149.5/ 10.6101 2010 JE87 Date__(UT)__HR:MN R.A._(a-appar)_DEC. APmag S-brt delta S-O-T /r T-O-M/MN_Illu% 2021-Jan-15 00:00 278.22854 -33.06270 26. 10. 0.10252595923894 20.4783 /L 40.7/ 4.0210 2021-Jan-16 00:00 277.37484 -31.09422 25. 10. 0.09436851738335 21.1359 /L 54.3/ 9.1717 2021-Jan-17 00:00 276.43022 -28.74227 25. 10. 0.08641340605418 22.0722 /L 67.8/ 15.9298 2021-Jan-18 00:00 275.37640 -25.90699 24. 10. 0.07870052227601 23.3982 /L 81.3/ 23.8820 2021-Jan-19 00:00 274.18975 -22.45643 24. 9. 0.07128739831240 25.2672 /L 94.8/ 32.6462 2021-Jan-20 00:00 272.83935 -18.21810 23. 9. 0.06425707426058 27.8830 /L 108.2/ 41.8855 2021-Jan-21 00:00 271.28421 -12.97387 22. 9. 0.05772917890230 31.5032 /L 121.4/ 51.3045 2021-Jan-22 00:00 269.46913 -6.46948 21. 8. 0.05187388743523 36.4256 /L 133.6/ 60.6353 2021-Jan-23 00:00 267.31852 1.53682 20. 8. 0.04692464308471 42.9345 /L 142.4/ 69.6190 2021-Jan-24 00:00 264.72707 11.15031 19. 7. 0.04317644824311 51.1732 /L 143.5/ 77.9876 2021-Jan-25 00:00 261.54551 22.13670 18.303 6.713 0.04094474506275 60.9419 /L 134.6/ 85.4507 2021-Jan-26 00:00 257.55934 33.77217 17.624 6.359 0.04046808193187 71.5509 /L 119.8/ 91.6921 2021-Jan-27 00:00 252.45904 44.99367 17.181 6.089 0.04179639235163 81.9790 /L 103.4/ 96.3782 2021-Jan-28 00:00 245.80696 54.83963 16.947 5.890 0.04476201623004 91.3243 /L 88.3/ 99.1834 2021-Jan-29 00:00 237.03299 62.77033 16.866 5.742 0.04906421663086 99.1370 /L 76.4/ 99.8288 2021-Jan-30 00:00 225.56746 68.63697 16.887 5.633 0.05438405361930 105.3931 /L 68.8/ 98.1300 2021-Jan-31 00:00 211.31308 72.50606 16.969 5.552 0.06045246450469 110.2927 /L 66.1/ 94.0400 2021-Feb-01 00:00 195.37434 74.58518 17.085 5.491 0.06706686604196 114.0948 /L 68.2/ 87.6767 2021-Feb-02 00:00 179.96836 75.24896 17.221 5.446 0.07408248919484 117.0371 /L 73.9/ 79.3242 2021-Feb-03 00:00 166.93788 74.97837 17.366 5.413 0.08139777487070 119.3133 /L 82.1/ 69.4105 2021-Feb-04 00:00 156.77989 74.19857 17.514 5.389 0.08894151953037 121.0725 /L 91.6/ 58.4687 2021-Feb-05 00:00 149.10112 73.19150 17.661 5.371 0.09666337620909 122.4279 /L 101.6/ 47.0930 2021-Feb-06 00:00 143.29860 72.11379 17.807 5.359 0.10452728195955 123.4647 /L 111.4/ 35.8975 2021-Feb-07 00:00 138.85668 71.04385 17.950 5.352 0.11250701326200 124.2478 /T 120.5/ 25.4778 2021-Feb-08 00:00 135.39810 70.01759 18.088 5.348 0.12058319037750 124.8263 /T 128.1/ 16.3756 2021-Feb-09 00:00 132.65952 69.04920 18.223 5.347 0.12874124658585 125.2383 /T 133.3/ 9.0427 2021-Feb-10 00:00 130.45827 68.14207 18.354 5.348 0.13697003871416 125.5136 /T 135.1/ 3.8081 2021-Feb-11 00:00 128.66630 67.29452 18.480 5.350 0.14526088736421 125.6755 /T 133.4/ 0.8553 2021-Feb-12 00:00 127.19237 66.50256 18.602 5.355 0.15360690846677 125.7426 /T 128.6/ 0.2152 2021-Feb-13 00:00 125.97019 65.76139 18.721 5.360 0.16200254434925 125.7299 /T 121.6/ 1.7808 2021-Feb-14 00:00 124.95071 65.06612 18.835 5.367 0.17044323207783 125.6495 /T 113.3/ 5.3390 2021-Feb-15 00:00 124.09695 64.41208 18.946 5.374 0.17892516615180 125.5114 /T 104.4/ 10.6101 2016 CL136 Date__(UT)__HR:MN R.A._(a-appar)_DEC. delta APmag S-brt S-O-T /r T-O-M/MN_Illu% 2021-Jan-23 00:00 253.01513 9.54959 0.10880623860007 20.919 5.272 59.2572 /L 147.4/ 69.6190 2021-Jan-24 00:00 251.28508 10.61490 0.09911181407835 20.580 5.205 62.0679 /L 148.4/ 77.9876 2021-Jan-25 00:00 249.18838 11.88446 0.08955027258739 20.207 5.130 65.2859 /L 143.5/ 85.4507 2021-Jan-26 00:00 246.58903 13.42181 0.08016877032116 19.793 5.043 69.0502 /L 134.1/ 91.6921 2021-Jan-27 00:00 243.28213 15.31237 0.07103999861563 19.332 4.944 73.5626 /L 121.5/ 96.3782 2021-Jan-28 00:00 238.95021 17.66625 0.06227849318213 18.814 4.827 79.1191 /L 106.5/ 99.1834 2021-Jan-29 00:00 233.09183 20.60667 0.05406870771207 18.234 4.688 86.1504 /L 89.4/ 99.8288 2021-Jan-30 00:00 224.92311 24.20562 0.04671083969348 17.595 4.521 95.2493 /L 70.2/ 98.1300 2021-Jan-31 00:00 213.33967 28.27286 0.04068136277133 16.920 4.316 107.0851 /L 49.5/ 94.0400 2021-Feb-01 00:00 197.36157 31.92502 0.03665654087479 16.271 4.062 121.9576 /L 31.7/ 87.6767 2021-Feb-02 00:00 177.78694 33.48046 0.03534499975405 15.745 3.754 138.8671 /L 33.6/ 79.3242 * 2021-Feb-03 00:00 158.39255 31.95925 0.03705334264947 15.410 3.402 155.0935 /L 54.8/ 69.4105 2021-Feb-04 00:00 142.78314 28.44275 0.04142576776678 15.287 3.072 166.9580 /L 79.3/ 58.4687 2021-Feb-05 00:00 131.54483 24.56610 0.04775036466470 15.533 3.014 168.9733 /T 102.1/ 47.0930 2021-Feb-06 00:00 123.64751 21.14926 0.05537487397209 16.051 3.199 163.6664 /T 122.8/ 35.8975 2021-Feb-07 00:00 118.00620 18.36275 0.06384624499414 16.546 3.370 157.9319 /T 141.4/ 25.4778 2021-Feb-08 00:00 113.86180 16.13754 0.07287916464973 16.982 3.501 153.0300 /T 157.8/ 16.3756 2021-Feb-09 00:00 110.73000 14.35826 0.08229690139175 17.364 3.603 148.9312 /T 169.0/ 9.0427 2021-Feb-10 00:00 108.30391 12.92181 0.09198799805048 17.703 3.684 145.4688 /T 163.1/ 3.8081
Setups
CW setup: --------------------------------------------------------------------------- TX polarization RCP RCV polarization LCP & RCP Frequency hops: no hopping Bandwidth: 5000 Hz TXoffset +500 Hz FFT 5000 for 1 Hz resolution Ranging setups: --------------------------------------------------------------------------- 10-usec baud 10 usec code 127 PRP 1270 usec ncoh 1 bandwidth 787 Hz FFT 128 resolution 6.15 Hz TXoffset +100 Hz (echo in column 80) --------------------------------------------------------------------------- 11-usec baud 11 usec code 127 PRP 1397 usec ncoh 1 bandwidth 716 Hz FFT 128 resolution 5.6 Hz TXoffset +100 Hz (echo in column 82) ------------------------------------------------------------------------- 1-usec baud 1 usec code 511 ncoh 4 bandwidth 489.2 Hz FFT 128 resolution 3.8 Hz TXoffset +100 Hz (echo in column 91) ---------------------------------------------------------------------
Instructions
NOTE: Data should be moved to the appropriate subdirectories in aardvark:/export/data0/1998ok1/raw/
POINTING:
OSOD and predicts will be on aardvark: /export/data3/osod/ops/a363024/EPH.OUT.s49 /export/data3/osod/ops/a363024/PRDX.OUT.14f-14-14.s49 /export/data3/osod/ops/a363024/PRDX.OUT.14v-14-14.s49 /export/data3/osod/ops/a363024/PUNCH.OUT.14f-14-14.s49 /export/data3/osod/ops/a363024/PUNCH.OUT.14v-14-14.s49 POINTING MACRO 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-14-14.49 TARGET IS A#0000 ET-UT(FIRST POINT) = 69.182398682 ET-UT1(FIRST POINT) = 69.357566315 TRANSMITTER: STATION #14, RECEIVER: STATION #14 RECEIVER U.T. RANGE DOPPLER AZI DEC RA EL D-DOP D-RANGE ...Not available yet...
1998 OK1 GOLDSTONE MASTERLOG
============================================================================== Receive TX Setup code ncoh FFT runs start -stop OSOD offset 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/1998OK1/1998ok1.2021.goldstone.planning.html
Asteroid Radar Astronomy