2009 BD Goldstone Radar Observations Planning
2009 BD was discovered on January 16, 2009 by the Mt. Lemmon Survey in Arizona. This object has an absolute magnitude of only 28.3, suggesting a diameter of roughly 10 meters. It's notable because it remains close to Earth for months at a time and is actually a co-orbital object with a very low delta-V relative to Earth. As such, its origin is of acute scientific interest. A recurring question about objects with very low delta-V values is whether they may be ejecta from the Moon. Recent work by Micheli, Tholen, and Elliott (2011 Planetary Defence Conference) indicates that solar radiation pressure has been detected for this object, one of the first instances where that has occurred. If we detect it with radar, our constraints on the object's size coupled with the radiation pressure detection could be used to estimate the asteroid's mass and bulk density, information that is very important but unavailable for the vast majority of near-Earth objects. 2009 BD will approach within 0.0023 AU (~0.90 lunar distances) on June 2, 2011, and will remain within 10 lunar distances of Earth for two months starting in early May. Due to the close approach, 2009 BD should be a strong radar target, and the short round-trip travel times will require bistatic observations by transmitting at DSS-14 and receiving with DSS-13. Other than its absolute magnitude, nothing is known about the physical properties of this object. 2009 BD will remain too close to the Sun for optical observations until early June when the solar elongations rapidly increase to more than 100 degrees. Goldstone radar observations are scheduled on May 28, 29, and 30 and on June 5 and 7. We have also requested time on the VLBA to receive on May 29. The June 7 Goldstone track has been cancelled UPDATE on May 15: All Arecibo observations have been CANCELLED due to equipment problems.
Orbital and Physical Characteristics orbit type Apollo semimajor axis 1.0118 AU eccentricity 0.048 inclination 1.06 deg perihelion distance 0.964 AU aphelion distance 1.060 AU absolute magnitude (H) 28.3 diameter ~10 meters rotation period roughly 20 minutes (M. Micheli and D. J. Tholen, pers. comm.) pole direction unknown lightcurve amplitude unknown spectral class unknown Last update: 2011 June 3
M.P.E.C. 2009-B14 Issued 2009 Jan. 18, 01:51 UT The Minor Planet Electronic Circulars contain information on unusual minor planets and routine data on comets. They are published on behalf of Commission 20 of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A. Prepared using the Tamkin Foundation Computer Network MPC@CFA.HARVARD.EDU URL http://www.cfa.harvard.edu/iau/mpc.html ISSN 1523-6714 2009 BD Observations: K09B00D* C2009 01 16.27641 07 53 19.03 +21 35 31.9 18.4 V EB014G96 K09B00D C2009 01 16.28279 07 53 16.18 +21 36 56.0 18.3 V EB014G96 K09B00D C2009 01 16.28925 07 53 13.30 +21 38 20.5 18.4 V EB014G96 K09B00D C2009 01 16.29567 07 53 10.39 +21 39 43.8 18.3 V EB014G96 K09B00D C2009 01 16.33527507 52 30.49 +21 45 18.9 19.3 V EB014H55 K09B00D C2009 01 16.33723107 52 29.76 +21 45 42.0 19.4 V EB014H55 K09B00D C2009 01 16.33909707 52 29.08 +21 46 03.8 19.2 V EB014H55 K09B00D C2009 01 16.34092907 52 28.41 +21 46 25.4 19.2 V EB014H55 K09B00D C2009 01 16.34259607 52 27.79 +21 46 44.8 19.4 V EB014H55 K09B00D C2009 01 16.34445407 52 27.12 +21 47 06.7 19.3 V EB014H55 K09B00D C2009 01 16.35507 07 52 43.40 +21 52 16.1 18.3 R EB014854 K09B00D C2009 01 16.35694 07 52 42.52 +21 52 39.2 18.2 R EB014854 K09B00D C2009 01 16.36069 07 52 40.86 +21 53 25.6 18.3 R EB014854 K09B00D C2009 01 16.38516 07 52 30.18 +21 58 17.5 18.4 V EB014G96 K09B00D C2009 01 16.38701 07 52 29.42 +21 58 39.6 18.4 V EB014G96 K09B00D C2009 01 16.38887 07 52 28.63 +21 59 01.6 18.3 V EB014G96 K09B00D C2009 01 16.39072 07 52 27.87 +21 59 23.7 18.4 V EB014G96 K09B00D C2009 01 16.64840 07 52 23.45 +23 14 15.0 18.2 R EB014E12 K09B00D C2009 01 16.65080 07 52 22.35 +23 14 45.6 18.3 R EB014E12 K09B00D C2009 01 16.65311 07 52 21.28 +23 15 15.0 18.3 R EB014E12 K09B00D C2009 01 16.91805 07 53 12.43 +23 55 31.7 17.6 C EB014493 K09B00D C2009 01 16.91908 07 53 11.99 +23 55 47.5 17.5 C EB014493 K09B00D C2009 01 16.92106 07 53 11.25 +23 56 17.2 17.5 C EB014493 K09B00D C2009 01 16.92173 07 52 51.61 +23 54 28.7 18.6 V EB014595 K09B00D C2009 01 16.93029 07 52 48.28 +23 56 32.7 18.6 V EB014595 K09B00D C2009 01 16.94494 07 52 42.26 +24 00 03.2 18.6 V EB014595 K09B00D C2009 01 17.14649 07 53 22.97 +24 48 52.1 18.0 R EB014H01 K09B00D C2009 01 17.15612 07 53 20.05 +24 51 31.4 18.0 R EB014H01 K09B00D C2009 01 17.16688 07 53 16.52 +24 54 28.9 18.2 R EB014H01 K09B00D C2009 01 17.17369 07 53 14.16 +24 56 20.5 18.3 R EB014H01 K09B00D C2009 01 17.21286 07 52 58.74 +25 06 55.5 18.2 R EB014H01 K09B00D C2009 01 17.31597 07 52 13.33 +25 33 51.9 18.3 V EB014G96 K09B00D C2009 01 17.31659 07 52 13.00 +25 34 00.9 18.3 V EB014G96 K09B00D C2009 01 17.31720 07 52 12.69 +25 34 09.8 18.3 V EB014G96 K09B00D C2009 01 17.31773 07 52 12.42 +25 34 17.6 18.5 V EB014G96 K09B00D C2009 01 17.42240 07 51 19.14 +25 57 57.9 18.1 R EB014H01 K09B00D C2009 01 17.42428 07 51 18.41 +25 58 22.6 18.1 R EB014H01 K09B00D C2009 01 17.42893 07 51 16.62 +25 59 24.0 17.9 R EB014H01 K09B00D C2009 01 17.43268 07 51 15.21 +26 00 13.3 18.0 R EB014H01 K09B00D C2009 01 17.86994 07 52 24.29 +27 51 23.9 EB014204 K09B00D C2009 01 17.87261 07 52 23.30 +27 52 11.3 EB014204 K09B00D C2009 01 17.87527 07 52 22.26 +27 52 58.8 EB014204 K09B00D C2009 01 17.87850 07 52 21.01 +27 53 56.0 EB014204 K09B00D C2009 01 17.88229 07 52 19.53 +27 55 02.9 17.8 C EB014204 Observer details: 204 Schiaparelli Observatory. Observer L. Buzzi. 0.60-m f/4.64 reflector + CCD. 493 Calar Alto. Observer F. Hormuth. 1.23-m reflector + CCD. 595 Farra d'Isonzo. Observers L. Bittesini, F. Fabris, E. Pettarin, F. Piani. Measurer E. Pettarin. 0.30-m f/4.5 reflector + CCD. 854 Sabino Canyon Observatory, Tucson. Observer J. E. McGaha. 0.36-m f/10.0 Schmidt-Cassegrain + CCD. E12 Siding Spring Survey. Observer R. H. McNaught. 0.5-m Uppsala Schmidt + CCD. G96 Mt. Lemmon Survey. Observer R. E. Hill. Measurers E. C. Beshore, A. Boattini, G. J. Garradd, A. R. Gibbs, A. D. Grauer, R. E. Hill, R. A. Kowalski, S. M. Larson, R. H. McNaught. 1.5-m reflector + CCD. H01 Magdalena Ridge Observatory, Socorro. Observers W. H. Ryan, E. V. Ryan. Measurer W. H. Ryan. 2.4-m f/8.9 reflector + CCD. H55 Astronomical Research Observatory, Charleston. Observer R. Holmes. Measurer H. Devore. 0.61-m f/4.0 astrograph + CCD. Orbital elements: 2009 BD Earth MOID = 0.0021 AU Epoch 2008 Nov. 30.0 TT = JDT 2454800.5 MPC M 255.72588 (2000.0) P Q n 0.97480152 Peri. 60.01785 -0.99845300 -0.05067737 a 1.0073767 Node 117.06888 +0.03789743 -0.92133465 e 0.0277868 Incl. 1.47224 +0.04068653 -0.38545333 P 1.01 H 28.8 G 0.15 U 3 Residuals in seconds of arc 090116 G96 0.1- 0.4- 090116 G96 0.1- 0.2- 090117 H01 0.1+ 0.1+ 090116 G96 0.3- 0.2- 090116 G96 0.1+ 0.0- 090117 G96 0.1+ 0.1- 090116 G96 0.1- 0.1- 090116 E12 0.2+ 0.2- 090117 G96 0.0- 0.3- 090116 G96 0.2- 0.3- 090116 E12 0.1+ 0.1+ 090117 G96 0.1+ 0.4- 090116 H55 0.2- 0.0+ 090116 E12 0.2- 0.5+ 090117 G96 0.1+ 0.4- 090116 H55 0.2- 0.1+ 090116 493 0.4+ 0.3- 090117 H01 0.0+ 0.0- 090116 H55 0.0- 0.0+ 090116 493 0.1- 0.2- 090117 H01 0.1+ 0.2- 090116 H55 0.0+ 0.1+ 090116 493 0.4+ 0.7- 090117 H01 0.1+ 0.0- 090116 H55 0.1- 0.0+ 090116 595 0.6- 0.7+ 090117 H01 0.1+ 0.0+ 090116 H55 0.0- 0.2+ 090116 595 0.7+ 0.5+ 090117 204 0.2- 0.0+ 090116 854 0.5+ 0.2- 090116 595 0.0- 0.3+ 090117 204 0.1+ 0.0- 090116 854 0.0- 0.0- 090117 H01 0.0- 0.1+ 090117 204 0.2- 0.2+ 090116 854 0.2+ 0.5+ 090117 H01 0.1+ 0.1+ 090117 204 0.3- 0.1+ 090116 G96 0.3- 0.1- 090117 H01 0.0+ 0.3+ 090117 204 0.1- 0.0- 090116 G96 0.0- 0.0- 090117 H01 0.1+ 0.1+ Ephemeris: 2009 BD a,e,i = 1.01, 0.03, 1 q = 0.9794 Date TT R. A. (2000) Decl. Delta r Elong. Phase V 2009 01 09 07 55.27 +05 36.9 0.0129 0.996 161.5 18.2 20.3 2009 01 10 07 55.14 +07 02.3 0.0122 0.995 163.4 16.4 20.1 2009 01 11 07 54.97 +08 38.5 0.0116 0.995 165.5 14.3 19.9 . . . 2009 02 01 20 06.59 +37 52.1 0.00668 0.982 56.4 123.3 23.0 2009 02 02 20 05.08 +33 08.8 0.00720 0.981 51.9 127.8 23.5 2009 02 03 20 03.90 +29 03.3 0.00775 0.980 48.1 131.6 24.1 A. U. Tomatic (C) Copyright 2009 MPC M.P.E.C. 2009-B14
Target Name: 2009 BD HMag: 28.3 Diameter: 10 meters Period: 0.5 h a standard guess for such small objects UTC # max Start date window RA, dec dist runs SNR SNR/run --------------------l-------------------------------------------- 2011 May 20 16:38-02:54 88, +17 0.010 1647 120 3 2011 May 21 16:41-02:51 89, +16 0.010 1750 160 4 2011 May 22 16:45-02:48 90, +14 0.009 1864 220 6 2011 May 23 16:51-02:45 91, +13 0.008 1992 310 8 2011 May 24 16:59-02:42 93, +11 0.007 2137 450 11 2011 May 25 17:09-02:39 95, +8 0.006 2298 670 15 2011 May 26 17:23-02:36 98, +5 0.006 2475 1040 23 2011 May 27 17:43-02:33 101, +1 0.005 2660 1700 35 2011 May 28 18:12-02:28 105, -4 0.004 2824 2700 57 2011 May 29 18:58-02:19 111, -12 0.004 2879 4500 92 2011 May 30 20:22-01:57 121, -23 0.003 2503 6200 130 ...Too far south for Goldstone to track from June 1-4... 2011 Jun 05 06:21-09:33 254, -31 0.004 1207 2000 60 2011 Jun 06 05:45-10:54 261, -24 0.004 1695 1600 40 2011 Jun 07 05:29-11:36 266, -20 0.005 1773 1000 27 2011 Jun 08 05:20-12:02 269, -16 0.006 1736 680 18 2011 Jun 09 05:13-12:19 271, -13 0.007 1660 460 12 2011 Jun 10 05:07-12:32 273, -11 0.008 1574 320 9 2011 Jun 11 05:02-12:41 275, -9 0.008 1488 230 6 2011 Jun 12 04:57-12:47 276, -7 0.009 1405 160 5 2011 Jun 13 04:53-12:51 277, -6 0.010 1329 120 4 The Goldstone SNRs assume monostatic observations, but all the observations will be bistatic due to the very short round-trip light travel times. For DSS-14->DSS-13 observations, divide the SNRs by four. Goldstone SNRs assume Ptx = 470 kW. Arecibo SNRs UTC Start date window RA, dec dist runs SNR SNR/run ------------------------------------------------------------------ 2011 May 08 17:21-20:03 80, 24 0.020 169 89 7 2011 May 09 17:19-20:01 80, 24 0.019 174 100 8 2011 May 10 17:17-20:00 81, 23 0.018 180 120 10 2011 May 11 17:15-19:58 81, 23 0.017 186 150 11 2011 May 12 17:13-19:57 82, 22 0.017 193 180 13 2011 May 13 17:11-19:55 83, 22 0.016 199 210 16 2011 May 14 17:09-19:54 83, 22 0.015 207 260 19 2011 May 15 17:07-19:53 84, 21 0.014 214 320 23 2011 May 16 17:06-19:51 84, 20 0.013 222 400 28 2011 May 17 17:05-19:50 85, 20 0.013 230 500 34 2011 May 18 17:04-19:49 86, 19 0.012 238 640 43 2011 May 19 17:03-19:49 87, 18 0.011 248 820 54 2011 May 20 17:03-19:48 88, 17 0.010 256 1100 70 2011 May 21 17:04-19:47 89, 16 0.010 265 1400 91 2011 May 22 17:06-19:47 90, 15 0.009 272 1900 120 2011 May 23 17:09-19:47 91, 13 0.008 278 2700 170 2011 May 24 17:15-19:46 93, 11 0.007 280 3800 240 2011 May 25 17:23-19:45 95, 9 0.007 275 5400 350 2011 May 26 17:37-19:42 97, 6 0.006 253 7800 530 2011 May 27 18:03-19:32 100, 2 0.005 191 9500 760 Arecibo SNRs assume monostatic observations and Ptx = 900 kW. 2009 BD is too close for monostatic observations at Arecibo from May 24-27.
Goldstone tracks: UT UT PST Duration Round-trip Bistatic DOY Date TX Window TX Window hh:mm time (sec) SNR/RTT --- ---- --------- --------- --------- ------- ------- 148 May 28 1940-2200 1240-1500 May 28 2:20 4.3 14 149-150 May 29-30 1900-0055 1200-1755 May 29 5:55 3.6 23 150-151 May 30-31 2030-0055 1330-1755 May 30 4:25 2.9 30 156 Jun 05 0625-0930 2325-0230 Jun 04-05 3:05 3.7 15 158 Jun 07 0540-1135 2240-0435 Jun 06-07 5:55 5.2 7 CANCELLED On May 29/30, we intend to try Goldstone/VLBA observations from 00:30-00:55 UTC. On May 30/31, we will test the chirp/digital receiver sytem. Jun 5 and 7 tracks are also bistatic (DSS-13 receiving), although we will not be able to do any chirp testing. Due to recent pointing problems, we may need to pause for regular boresights. Arecibo tracks: (horizons = 70.3 degrees) 144 May 24 1715-1946 1015-1246 May 24 2:31 7.3 cancelled 145 May 25 1723-1945 1023-1245 May 25 2:22 6.6 cancelled 146 May 26 1737-1942 1037-1242 May 26 2:06 5.8 cancelled Update on 2011 May 15: Arecibo tracks for 2009 BD have been cancelled.
From Jon Giorgini, 2011 Jun 03, Solution #23, obs #127 (2009-Jan-16 to 2011-Jun-02) Formal 3-sigma uncertainties: Date__(UT)__HR:MN POS_3sigma DOP_X_3sig RT_delay_3sig 2011-Jun-04 00:00 4.220 0.87 0.000062 2011-Jun-05 00:00 5.033 0.87 0.000054 2011-Jun-06 00:00 5.248 0.80 0.000046 2011-Jun-07 00:00 5.227 0.73 0.000040 2011-Jun-08 00:00 5.124 0.66 0.000035 From Jon Giorgini, 2011 May 27, Solution #21, obs #119 (2009-Jan-16 to 2011-May-30) Formal 3-sigma X-band uncertainties: Date__(UT)__HR:MN POS_3sigma DOP_X_3sig RT_delay_3sig 2011-May-27 00:00 4.464 0.16 0.000173 2011-May-28 00:00 4.440 0.32 0.000184 2011-May-29 00:00 4.207 0.60 0.000196 2011-May-30 00:00 3.951 1.10 0.000209 2011-May-31 00:00 5.784 1.99 0.000219 2011-Jun-01 00:00 12.755 3.46 0.000212 2011-Jun-02 00:00 22.649 5.09 0.000169 2011-Jun-03 00:00 27.998 5.66 0.000095 2011-Jun-04 00:00 27.184 5.09 0.000039 2011-Jun-05 00:00 24.282 4.24 0.000050 2011-Jun-06 00:00 21.516 3.52 0.000078 2011-Jun-07 00:00 19.330 2.97 0.000098 2011-Jun-08 00:00 17.664 2.56 0.000112 From Jon Giorgini, 2011 May 27, Solution #19, obs #118 (2009-Jan-16 to 2010-Sep-01) Date__(UT)__HR:MN POS_3sigma DOP_X_3sig RT_delay_3sig 2011-May-27 00:00 35.525 3.34 0.001856 2011-May-28 00:00 42.457 5.54 0.001868 2011-May-29 00:00 54.517 8.93 0.001871 2011-May-30 00:00 76.830 14.39 0.001843 2011-May-31 00:00 117.841 23.22 0.001723 2011-Jun-01 00:00 182.194 35.90 0.001391 2011-Jun-02 00:00 241.603 46.92 0.000749 2011-Jun-03 00:00 245.010 46.95 0.000180 2011-Jun-04 00:00 207.349 38.97 0.000682 2011-Jun-05 00:00 168.151 30.68 0.001042 2011-Jun-06 00:00 139.315 24.45 0.001251 2011-Jun-07 00:00 119.611 20.07 0.001372 2011-Jun-08 00:00 106.124 16.97 0.001442 From JPL Horizons, 2010 May 04, Solution #13, #obs 121 (289 days) Date__(UT)__HR:MN R.A._(J2000.0)_DEC. delta POS_3sigma DOP_S_3sig DOP_X_3sig RT_delay_3sig 2011-Jun-01 00:00 *m 137.66919 -37.32071 0.00248337023446 270.336 15.14 54.16 0.002167 2011-Jun-02 00:00 *m 169.35488 -50.07934 0.00231434184277 363.209 19.96 71.39 0.001217 2011-Jun-03 00:00 *m 210.62536 -50.65436 0.00248766503758 373.144 20.15 72.07 0.000205 2011-Jun-04 00:00 *m 237.47702 -41.94952 0.00293774064363 319.374 16.85 60.28 0.000922 2011-Jun-05 00:00 *m 251.42606 -33.01859 0.00354896903312 261.445 13.35 47.75 0.001482 2011-Jun-06 00:00 *m 259.41125 -26.07749 0.00424249671206 218.280 10.69 38.23 0.001811 2011-Jun-07 00:00 *m 264.53032 -20.88730 0.00497771225748 188.570 8.80 31.49 0.002004 2011-Jun-08 00:00 *m 268.09508 -16.95807 0.00573475074900 168.132 7.47 26.70 0.002118 2011-Jun-09 00:00 *m 270.72766 -13.91530 0.00650364732401 153.753 6.49 23.23 0.002184 2011-Jun-10 00:00 *m 272.75681 -11.50510 0.00727917687216 143.348 5.77 20.64 0.002220 -------------------------------------------------------------------------------------------------------------- From JPL Horizons, 2010 Apr 14, Solution #11, #obs 121 (289 days) Date__(UT)__HR:MN R.A._(J2000.0)_DEC. delta POS_3sigma DOP_S_3sig DOP_X_3sig RT_delay_3sig 2011-May-01 00:00 A 75.97295 25.26917 0.02646956215298 15.396 1.53 5.47 0.003366 2011-May-02 00:00 A 76.41452 25.13434 0.02561018589091 15.877 1.52 5.43 0.003323 2011-May-03 00:00 A 76.86065 24.98513 0.02475683301968 16.380 1.50 5.38 0.003280 2011-May-04 00:00 A 77.31218 24.82044 0.02390918242542 16.906 1.49 5.32 0.003238 2011-May-05 00:00 Am 77.76992 24.63898 0.02306693253216 17.458 1.47 5.25 0.003197 2011-May-06 00:00 Am 78.23471 24.43926 0.02222981037774 18.039 1.45 5.18 0.003156 2011-May-07 00:00 Am 78.70740 24.21962 0.02139758032609 18.651 1.43 5.11 0.003116 2011-May-08 00:00 Am 79.18889 23.97810 0.02057005178489 19.298 1.40 5.02 0.003077 2011-May-09 00:00 Am 79.68020 23.71245 0.01974708540806 19.983 1.38 4.93 0.003039 2011-May-10 00:00 Am 80.18254 23.42005 0.01892859729728 20.711 1.35 4.82 0.003002 2011-May-11 00:00 Am 80.69736 23.09785 0.01811456045350 21.487 1.32 4.70 0.002966 2011-May-12 00:00 Am 81.22652 22.74224 0.01730500220317 22.317 1.28 4.58 0.002931 2011-May-13 00:00 Am 81.77247 22.34897 0.01649999564915 23.207 1.24 4.43 0.002897 2011-May-14 00:00 Am 82.33841 21.91296 0.01569964292579 24.165 1.19 4.27 0.002865 2011-May-15 00:00 Am 82.92864 21.42811 0.01490404893843 25.199 1.14 4.09 0.002835 2011-May-16 00:00 Am 83.54881 20.88701 0.01411328693578 26.318 1.09 3.89 0.002806 2011-May-17 00:00 Am 84.20627 20.28054 0.01332736128538 27.536 1.02 3.65 0.002780 2011-May-18 00:00 Am 84.91049 19.59734 0.01254617629451 28.867 0.94 3.38 0.002757 2011-May-19 00:00 A 85.67346 18.82312 0.01176952040121 30.328 0.86 3.06 0.002736 2011-May-20 00:00 A 86.51037 17.93951 0.01099707182207 31.943 0.75 2.68 0.002719 2011-May-21 00:00 A 87.44050 16.92266 0.01022842704010 33.744 0.62 2.23 0.002707 2011-May-22 00:00 A 88.48867 15.74090 0.00946315120149 35.778 0.47 1.68 0.002699 2011-May-23 00:00 A 89.68749 14.35143 0.00870085226393 38.114 0.28 1.00 0.002696 2011-May-24 00:00 A 91.08106 12.69503 0.00794129002479 40.864 0.06 0.23 0.002700 2011-May-25 00:00 A 92.73095 10.68761 0.00718454893822 44.223 0.30 1.08 0.002711 2011-May-26 00:00 A 94.72656 8.20637 0.00643133749641 48.560 0.74 2.64 0.002729 2011-May-27 00:00 A 97.20403 5.06626 0.00568354747123 54.629 1.36 4.86 0.002754 2011-May-28 00:00 A 100.38293 0.97957 0.00494536492257 64.061 2.27 8.12 0.002782 2011-May-29 00:00 A 104.64440 -4.51151 0.00422559617961 80.465 3.68 13.17 0.002802 2011-May-30 00:00 A 110.71561 -12.12811 0.00354271831209 111.454 5.96 21.33 0.002783 2011-May-31 00:00 A 120.15930 -22.85102 0.00293563256097 170.357 9.69 34.65 0.002638 2011-Jun-01 00:00 A 136.74182 -37.01969 0.00248176483432 266.793 15.09 53.98 0.002188 2011-Jun-02 00:00 A 168.15523 -50.10075 0.00229891938215 361.998 19.90 71.19 0.001253 2011-Jun-03 00:00 A 210.01270 -50.99660 0.00246123277535 374.591 20.09 71.85 0.000210 2011-Jun-04 00:00 Am 237.40784 -42.21770 0.00290613911233 320.836 16.79 60.05 0.000904 2011-Jun-05 00:00 Am 251.51924 -33.15660 0.00351590699207 262.131 13.29 47.52 0.001471 Apparent Magnitudes, Solar Elongations, Lunar elongations, and lunar phases Date__(UT)__HR:MN R.A._(J2000.0)_DEC. delta APmag S-O-T /r T-O-M/Illu% 2011-May-18 00:00 85.10534 19.64777 0.01255503724954 n.a. 29.0202 /T 157.8/ 99.6 2011-May-19 00:00 85.88029 18.87768 0.01177808759567 n.a. 28.8720 /T 170.6/ 96.8 2011-May-20 00:00 86.73065 17.99875 0.01100537051574 n.a. 28.8405 /T 173.1/ 91.7 2011-May-21 00:00 87.67604 16.98721 0.01023649074601 n.a. 28.9598 /T 161.8/ 84.8 2011-May-22 00:00 88.74168 15.81158 0.00947102398595 n.a. 29.2744 /T 150.1/ 76.5 2011-May-23 00:00 89.96075 14.42928 0.00870859190916 n.a. 29.8436 /T 138.8/ 67.4 2011-May-24 00:00 91.37812 12.78143 0.00794897252312 n.a. 30.7488 /T 128.0/ 57.8 2011-May-25 00:00 93.05641 10.78448 0.00719227503672 n.a. 32.1028 /T 117.8/ 48.1 2011-May-26 00:00 95.08658 8.31653 0.00643924236206 n.a. 34.0679 /T 108.3/ 38.6 2011-May-27 00:00 97.60701 5.19411 0.00569181495952 n.a. 36.8848 /T 99.6/ 29.6 2011-May-28 00:00 100.84068 1.13258 0.00495424786994 n.a. 40.9250 /T 92.1/ 21.4 2011-May-29 00:00 105.17381 -4.31946 0.00423544093849 n.a. 46.7833 /T 86.4/ 14.1 2011-May-30 00:00 111.34029 -11.86861 0.00355397373858 n.a. 55.4343 /T 83.8/ 8.1 2011-May-31 00:00 120.90418 -22.46205 0.00294874812441 19.98 68.4075 /T 86.1/ 3.6 2011-Jun-01 00:00 137.56450 -36.37964 0.00249668258765 18.64 87.4923 /T 95.7/ 0.8 2011-Jun-02 00:00 168.55332 -49.14517 0.00231406749018 17.58 112.3790 /T 112.3/ 0.0 2011-Jun-03 00:00 209.37598 -50.14411 0.00247410069940 17.00 137.5310 /T 129.5/ 1.3 2011-Jun-04 00:00 236.56611 -41.69249 0.00291580781844 16.80 156.9721 /T 139.5/ 4.8 2011-Jun-05 00:00 250.80741 -32.82221 0.00352297495048 16.78 169.5334 /T 140.3/ 10.5 2011-Jun-06 00:00 258.96032 -25.89575 0.00421477057769 16.98 174.0283 /L 134.8/ 18.0 2011-Jun-07 00:00 264.17923 -20.71374 0.00494937001777 17.47 170.8405 /L 126.1/ 27.3 2011-Jun-08 00:00 267.80805 -16.79280 0.00570632766662 17.93 167.0404 /L 115.8/ 37.8 2011-Jun-09 00:00 270.48450 -13.75878 0.00647540842341 18.31 164.0064 /L 104.6/ 49.1 2011-Jun-10 00:00 272.54526 -11.35736 0.00725125769269 18.64 161.6680 /L 92.9/ 60.5
CW setup: We don't know the rotation period, but most objects this small are rapid rotators, so the bandwidth may be a few Hz. We will not know the rotation period prior to the observations. --------------------------------------------------------------------------- TX polarization RCP RCV polarization LCP & RCP Frequency hops: 4 Dwell 30 seconds Bandwidth: 4000 Hz Sampling interval: 2500 x 0.1 usec VME FFT for PSD files: 8192 for 0.49-Hz resolution Ranging setups: --------------------------------------------------------------------------- 10 usec ranging baud 10 usec code 127 FFT 128 ncoh 1 bandwidth 787.4 Hz resolution 6.15 Hz TXOFF +100 Hz -> echo will be centered at +16 bins or in bin 64 + 16 = 80 --------------------------------------------------------------------------- 11 usec ranging baud 11 usec code 127 FFT 128 ncoh 1 bandwidth 715.8 Hz resolution 5.6 Hz TXOFF +100 Hz --> echo will be centered at +18 bins or in bin 64 + 18 = 82 ------------------------------------------------------------------------- 1 usec ranging baud 1 usec code 255 FFT 128 ncoh 6 bandwidth 653.6 Hz dfreq 5.1 Hz TXoff +100 Hz (echo in bin 64+20 =84) --------------------------------------------- Tentatively: 0.25-usec imaging baud 0.25 usec code 255 FFT 128 ncoh 26 bandwidth 603.3 Hz resolution 4.7 Hz TXOFF +80 Hz, echo is in bin 64+17=81 --------------------------------- 0.125-usec imaging baud 0.125 usec code 255 FFT 128 ncoh 56 bandwidth 560.2 Hz resolution 4.4 Hz TXOFF +80 Hz to put echo at 64 + 18 = bin 82 _____________________________________________________________________ POSSIBLE RANGING SETUPS: (code=127, FFT=64, single-pol'n) These are from JX, w/ max-band (min-acc) options from Ray Jurgens. Currently configured for 5-sec records. _______________________________________________________________________ Setup Baud RP 1-acc 1-acc usec m usec band res acc band res _______________________________________________________________________ JX1XS110 11.000 1650 1397.0 715.8 11.2 2 358 5.6 JX1XS070 7.000 1050 889.0 1124.9 17.6 3 375 5.9 JX1XS020 2.000 300 254.0 3937.0 61.5 12 328 5.1 4 984 15.4 JX1XS010 1.000 150 127.0 7874.0 123.0 41 192 3.0 8 984 15.4 JX1XS005 0.500 75 63.5 15748.0 246.1 123 128 2.0 15 1050 16.4 JX1XS002 0.250 37.5 31.75 31496.1 492.1 492 64 1.0 30 1050 16.4 JX1XS001 0.125 18.75 15.875 62992.1 984.3 1970 32 0.5 60 1050 16.4 ____________________________________________________________________
OSOD and predicts are on aardvark: /export/data3/osod/ops/2009bd/PRDX.OUT.14c-13-13.s23 /PUNCH.OUT.14c-13-13.s23 /EPH.OUT.s23 POINTING TX Offsets Date (UTC) DOY hhmmss RA Dec Macro LHA Dec RTT OSOD 2011 06 05 156 060000 253.74170 -31.4864 A 3.7 2011 06 05 156 070000 253.96270 -31.1973 A -0.20 0.30 3.7 s23 2011 06 05 156 080000 254.17000 -30.8933 A 3.7 2011 06 05 156 080000 254.17000 -30.8933 B 3.7 2011 06 05 156 090000 254.37470 -30.5751 B -0.20 0.30 3.8 s23 2011 06 05 156 100000 254.58700 -30.2441 B 3.8 Transmit offsets are given in millidegrees.
PRDX.OUT.14c-13-13.s23 TRANSMITTER: STATION #14, RECEIVER: STATION #13 RECEIVER U.T. RANGE DOPPLER LHA DEC RA EL 2011 JUN 05 06:00 3.6689690707 -58282.457 332.7878 -31.4857 253.741 18.538 2011 JUN 05 06:10 3.6730800351 -59019.685 335.2565 -31.4385 253.780 19.378 2011 JUN 05 06:20 3.6772432164 -59772.153 337.7258 -31.3909 253.817 20.152 2011 JUN 05 06:30 3.6814596367 -60538.566 340.1956 -31.3429 253.854 20.858 2011 JUN 05 06:40 3.6857302277 -61317.602 342.6660 -31.2945 253.891 21.493 2011 JUN 05 06:50 3.6900558272 -62107.909 345.1369 -31.2457 253.927 22.055 2011 JUN 05 07:00 3.6944371767 -62908.110 347.6082 -31.1965 253.962 22.543 2011 JUN 05 07:10 3.6988749213 -63716.807 350.0799 -31.1468 253.997 22.954 2011 JUN 05 07:20 3.7033696064 -64532.580 352.5520 -31.0968 254.032 23.287 2011 JUN 05 07:30 3.7079216780 -65353.996 355.0243 -31.0463 254.067 23.542 2011 JUN 05 07:40 3.7125314810 -66179.604 357.4968 -30.9954 254.101 23.716 2011 JUN 05 07:50 3.7171992580 -67007.946 359.9695 -30.9441 254.135 23.809 2011 JUN 05 08:00 3.7219251490 -67837.552 2.4424 -30.8924 254.169 23.820 2011 JUN 05 08:10 3.7267091909 -68666.950 4.9153 -30.8403 254.203 23.751 2011 JUN 05 08:20 3.7315513183 -69494.665 7.3882 -30.7878 254.237 23.600 2011 JUN 05 08:30 3.7364513608 -70319.222 9.8611 -30.7349 254.271 23.369 2011 JUN 05 08:40 3.7414090458 -71139.153 12.3339 -30.6817 254.305 23.058 2011 JUN 05 08:50 3.7464239977 -71952.993 14.8066 -30.6280 254.339 22.668 2011 JUN 05 09:00 3.7514957384 -72759.289 17.2791 -30.5740 254.373 22.201 2011 JUN 05 09:10 3.7566236885 -73556.601 19.7514 -30.5197 254.408 21.658 2011 JUN 05 09:20 3.7618071683 -74343.504 22.2234 -30.4649 254.443 21.041 2011 JUN 05 09:30 3.7670453990 -75118.591 24.6952 -30.4099 254.478 20.352 2011 JUN 05 09:40 3.7723375032 -75880.478 27.1665 -30.3545 254.513 19.593 2011 JUN 05 09:50 3.7776825087 -76627.805 29.6375 -30.2989 254.549 18.766 2011 JUN 05 10:00 3.7830793470 -77359.237 32.1081 -30.2429 254.586 17.875 Remember to use bistatic ephemerides!
2009 BD GOLDSTONE MASTERLOG
2011 May 28 <--- UTC ---> rcsta rcend Setup Code Bandwidth osod VME FFT Offset Runs HHMMSS-HHMMSS 2011 May 29 2011 May 30 Radar Astrometry
Dr. Lance A. M. Benner | PHONE: (818) 354-7412 Mail Stop 300-233 | FAX: (818) 354-9476 Jet Propulsion Laboratory | email: lance.benner@jpl.nasa.gov California Institute of Technology | Plan: To live long and prosper Pasadena, CA 91109-8099 http://echo.jpl.nasa.gov/asteroids/2009BD/2009BD_planning.html