2013BS45_planning.html (original) (raw)
2013 BS45 Goldstone Radar Observations Planning
Background
2013 BS45 was discovered by Spacewatch on January 20, 2013. The physical properties of this object are unknown other than its absolute magnitude of 25.7 which suggests a diameter within a factor of two of 23 meters.
This object is on the "NHATS" list of potential human mission targets, so there's considerable interest in improving its orbit and understanding its physical properties.
2013 BS45 will approach within 0.0123 AU (4.8 lunar distances) on Feb. 12. We're going to observe it during time already scheduled for Camillo on Feb. 10-13 when the SNRs should be sufficient to get a detection.
Orbital and Physical Characteristics
orbit type Apollo
semimajor axis 1.003 AU
eccentricity 0.0847
inclination 0.92 deg
perihelion distance 0.918 AU
aphelion distance 1.088 AU
absolute magnitude (H) 25.7
diameter ~23 meters (within a factor of two)
rotation period unknown
pole direction unknown
lightcurve amplitude unknown
spectral class unknown
Last update: 2013 February 12
Discovery MPEC
M.P.E.C. 2013-B72 Issued 2013 Jan. 22, 13:21 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are publishedon 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.minorplanetcenter.net/ ISSN 1523-6714
2013 BS45Observations: K13B45S* C2013 01 20.44396 10 26 27.30 +19 20 12.2 20.4 VoEB072691 K13B45S C2013 01 20.46163 10 26 29.07 +19 20 41.3 20.4 VoEB072691 K13B45S C2013 01 20.47930 10 26 30.92 +19 21 10.4 20.4 VoEB072691 K13B45S KC2013 01 21.37953 10 29 18.20 +19 48 24.3 19.5 RqEB072H36 K13B45S KC2013 01 21.38889 10 29 19.37 +19 48 42.6 20.1 RqEB072H36 K13B45S KC2013 01 21.39357 10 29 19.88 +19 48 50.9 19.8 RqEB072H36 K13B45S KC2013 01 22.31383 10 32 27.16 +20 19 36.1 19.3 RoEB072291 K13B45S KC2013 01 22.31502 10 32 27.33 +20 19 39.0 19.4 RoEB072291 K13B45S KC2013 01 22.31620 10 32 27.48 +20 19 41.7 19.5 RoEB072291
Observer details: 291 LPL/Spacewatch II. Observer T. H. Bressi. 1.8-m f/2.7 reflector + CCD. 691 Steward Observatory, Kitt Peak. Observer J. V. Scotti. 0.9-m f/3 reflector + CCD. H36 Sandlot Observatory, Scranton. Observer G. Hug. 0.56-m reflector + CCD.
Orbital elements: 2013 BS45 Earth MOID = 0.0118 AU Epoch 2012 Sept. 30.0 TT = JDT 2456200.5 MPC M 152.37695 (2000.0) P Q n 0.98065465 Peri. 131.01433 -0.66101520 +0.75019835 a 1.0033643 Node 97.60073 -0.69325586 -0.60231403 e 0.0864628 Incl. 0.93450 -0.28715017 -0.27280075 P 1.01 H 25.7 G 0.15 U 8 Residuals in seconds of arc 130120 691 0.3+ 0.3+ 130121 H36 0.5- 0.7- 130122 291 0.1- 0.0 130120 691 0.2- 0.1- 130121 H36 0.8+ 0.1+ 130122 291 0.0 0.1+ 130120 691 0.3- 0.0 130121 H36 0.4+ 0.3- 130122 291 0.1- 0.1+
Ephemeris: 2013 BS45 a,e,i = 1.00, 0.09, 1 q = 0.9166 Date TT R. A. (2000) Decl. Delta r Elong. Phase V 2012 12 23 09 29 21.6 +14 32 49 0.1079 1.0580 131.4 44.2 22.7 ... 2013 01 07 09 56 34.3 +15 26 50 0.07194 1.0400 140.7 36.8 21.6 ... 2013 01 15 10 12 42.2 +17 12 49 0.05472 1.0292 145.4 32.8 20.8 ... 2013 01 21 10 28 08.9 +19 37 38 0.04284 1.0207 148.2 30.6 20.2 2013 01 22 10 31 17.5 +20 09 48 0.04094 1.0193 148.4 30.4 20.1 2013 01 23 10 34 40.2 +20 44 55 0.03907 1.0178 148.7 30.2 20.0 ... 2013 01 29 11 02 46.8 +25 39 44 0.02843 1.0090 147.4 31.7 19.3 ... 2013 02 06 12 40 18.7 +38 42 45 0.01661 0.9970 130.3 48.9 18.6 ... 2013 02 21 20 00 29.7 +17 29 55 0.02065 0.9742 44.0 135.2 23.5
A. U. Tomatic (C) Copyright 2013 MPC M.P.E.C. 2013-B72
SNR Calculation
Target Name: 2013 BS45
Goldstone: G = 0.94 K/Jy, Tsys = 17.0 K, P = 440 kW, elev >= 20.00 deg, unhopped t_down = 4 s, t_switch = 4 s
start date window RA, dec dist runs SNR SNR/run 2013 Feb 05 05:08-17:21 187, +37 0.017 1145 48 2 2013 Feb 06 05:19-17:47 193, +40 0.016 1241 63 2 2013 Feb 07 05:34-18:18 199, +42 0.015 1340 82 2 2013 Feb 08 05:55-18:54 208, +44 0.014 1437 100 3 2013 Feb 09 06:23-19:35 217, +45 0.013 1521 130 4 2013 Feb 10 06:59-20:16 228, +46 0.013 1578 150 4 2013 Feb 11 07:42-20:56 240, +45 0.013 1597 160 4 2013 Feb 12 08:28-21:30 251, +43 0.013 1573 160 4 2013 Feb 13 09:15-21:56 261, +41 0.013 1512 140 4 2013 Feb 14 09:57-22:16 270, +37 0.013 1425 120 4 2013 Feb 15 10:34-22:30 278, +34 0.014 1325 99 3 2013 Feb 16 11:06-22:40 284, +30 0.015 1223 78 2 2013 Feb 17 11:31-22:46 289, +27 0.016 1123 60 2 2013 Feb 18 11:53-22:50 293, +24 0.017 1031 46 2
Arecibo SNRs
2013BS45: D = 0.02 km, P = 0.5000 hr, OC albedo = 0.100
Arecibo : G = 10.00 K/Jy, Tsys = 25.0 K, P = 800 kW, elev >= 70.30 deg, unhopped t_down = 3 s, t_switch = 7 s # max start date window RA, dec dist runs SNR SNR/run 2013 Jan 28 05:36-08:16 165, +25 0.029 157 61 5 2013 Jan 29 05:39-08:17 166, +26 0.027 165 75 6 2013 Jan 30 05:44-08:18 168, +27 0.026 173 93 7 2013 Jan 31 05:51-08:19 170, +28 0.024 174 120 9 2013 Feb 01 05:59-08:21 172, +30 0.023 179 140 11 2013 Feb 02 06:11-08:22 175, +31 0.021 174 180 14 2013 Feb 03 06:27-08:23 178, +33 0.020 169 200 18 2013 Feb 04 06:49-08:23 182, +35 0.018 144 210 19 2013 Feb 05 07:23-08:17 186, +37 0.017 87 180 20 ...too far north for Arecibo to track between Feb. 6-13... 2013 Feb 14 12:31-13:03 269, +38 0.013 67 330 40 2013 Feb 15 12:20-14:06 277, +34 0.014 217 630 48 2013 Feb 16 12:25-14:42 283, +31 0.015 263 660 44 2013 Feb 17 12:33-15:06 288, +27 0.016 277 570 36 2013 Feb 18 12:41-15:23 292, +24 0.017 277 460 29 2013 Feb 19 12:49-15:35 296, +21 0.018 254 370 24 2013 Feb 20 12:56-15:43 299, +19 0.019 232 280 19 2013 Feb 21 13:03-15:48 301, +17 0.021 230 220 15 2013 Feb 22 13:09-15:51 303, +15 0.022 206 170 12 2013 Feb 23 13:15-15:53 305, +13 0.024 193 130 10 2013 Feb 24 13:20-15:53 307, +11 0.025 173 100 8 2013 Feb 25 13:25-15:52 308, +10 0.027 160 78 6 2013 Feb 26 13:29-15:51 310, +9 0.029 144 61 5 2013 Feb 27 13:33-15:48 311, +8 0.030 129 48 4
Track Assignments
Goldstone tracks:
UT UT PDT Duration RTT SNR/ DOY Date TX Window TX Window hh:mm (sec) Run --- ---- --------- --------- --------- ----- ---- 41 Feb 10 0745-1435 2345-0635 Feb 9-10 6:50 13 4 42 Feb 11 0725-1000 2325-0200 Feb 10-11 2:35 13 4 43 Feb 12 0820-1255 0020-0455 Feb 11-12 4:35 13 4 44 Feb 13 0915-1320 0145-0520 Feb 12-13 3:05 13 4
Observations may occur at Arecibo during some of the time scheduled for 1999 YK5 on Feb. 14-18.
Uncertainties
From Jon Giorgini, 2013 Feb 12:
Marina sorted out the ambiguity with the 2013 BS45 delays and updated to orbit solution #22. This has radically reduced the uncertainties:
Formal 3-sigma S-band uncertainties for .s22:
Date__(UT)__HR:MN POS_3sigma DOP_S_3sig RT_delay_3sig 2013-Feb-14 00:00 5.201 1.29 0.000050 2013-Feb-15 00:00 5.666 1.54 0.000095 2013-Feb-16 00:00 5.942 1.71 0.000148 2013-Feb-17 00:00 6.058 1.81 0.000206 2013-Feb-18 00:00 6.053 1.87 0.000266 2013-Feb-19 00:00 5.965 1.89 0.000328
... using 83 optical measurements (2013-Jan-20 to 2013-Feb-8), plus the recent 1 Doppler and now 2 delays from DSS-14 ...
From Jon Giorgini, Feb 11, 2013: Based on 83 optical measurements (2013-Jan-20 to 2013-Feb-8), and the new Doppler, 2013 BS45 orbit solution #18 was estimated.
Formal 3-sigma X-band uncertainties:
Date__(UT)__HR:MN POS_3sigma DOP_X_3sig RT_delay_3sig 2013-Feb-10 00:00 2.329 65.51 0.021380 2013-Feb-11 00:00 3.709 28.10 0.020913 2013-Feb-12 00:00 5.793 10.81 0.020828 2013-Feb-13 00:00 8.456 48.61 0.021130 2013-Feb-14 00:00 11.475 83.98 0.021800 2013-Feb-15 00:00 14.593 115.61 0.022807
From Jon Giorgini, Feb 8, 2013: Based on 80 optical measurements (2013-Jan-20 to 2013-Feb-8), 2013 BS45 orbit solution #14 was estimated.
Formal 3-sigma X-band uncertainties:
Date__(UT)__HR:MN POS_3sigma DOP_X_3sig RT_delay_3sig 2013-Feb-10 00:00 3.140 91.11 0.029743 2013-Feb-11 00:00 5.268 39.40 0.029091 2013-Feb-12 00:00 8.367 14.34 0.028970 2013-Feb-13 00:00 12.251 66.66 0.029382 2013-Feb-14 00:00 16.603 115.63 0.030305 2013-Feb-15 00:00 21.057 159.47 0.031695
JPL/Horizons solution 12
JPL/HORIZONS (2013 BS45) 2013-Feb-08 09:59:12 Rec #:750906 (+COV) Soln.date: 2013-Feb-08_00:52:55 # obs: 80 (19 days)
Date__(UT)_HR:MN R.A.(J2000.0)_DEC. delta POS_3sigma DOP_S_3sig DOP_X_3sig RT_delay_3sig 2013-Feb-05 00:00 * 184.66094 36.35566 0.01766555105788 1.586 75.43 274.14 0.039441 2013-Feb-06 00:00 * 189.70546 38.44923 0.01646611566834 1.629 68.33 248.34 0.036828 2013-Feb-07 00:00 * 195.80806 40.56953 0.01538205374899 1.641 59.86 217.56 0.034497 2013-Feb-08 00:00 * 203.17171 42.57037 0.01443679646238 1.677 49.84 181.15 0.032501 2013-Feb-09 00:00 *m 211.92922 44.22508 0.01365673068608 2.019 38.20 138.85 0.030898 2013-Feb-10 00:00 *m 222.01851 45.23853 0.01306919175525 3.140 25.07 91.12 0.029747 2013-Feb-11 00:00 *m 233.05217 45.31585 0.01269893333852 5.267 10.84 39.40 0.029096 2013-Feb-12 00:00 *m 244.31948 44.28396 0.01256356162010 8.366 3.95 14.34 0.028974 2013-Feb-13 00:00 *m 255.01654 42.19089 0.01266945248680 12.250 18.34 66.67 0.029386 2013-Feb-14 00:00 *m 264.55535 39.29222 0.01301008129938 16.601 31.82 115.65 0.030309 2013-Feb-15 00:00 *m 272.69847 35.93510 0.01356769001522 21.055 43.88 159.49 0.031700 2013-Feb-16 00:00 *m 279.48492 32.43681 0.01431739916703 25.304 54.34 197.48 0.033500 2013-Feb-17 00:00 *m 285.09007 29.02370 0.01523182819791 29.152 63.20 229.71 0.035652 2013-Feb-18 00:00 *m 289.72285 25.82718 0.01628467215346 32.515 70.64 256.73 0.038098 2013-Feb-19 00:00 *m 293.57589 22.90647 0.01745272383452 35.389 76.85 279.30 0.040792 2013-Feb-20 00:00 *m 296.80946 20.27498 0.01871659678996 37.812 82.05 298.20 0.043691 2013-Feb-21 00:00 *m 299.55102 17.92096 0.02006064705937 39.839 86.44 314.15 0.046762 2013-Feb-22 00:00 *m 301.89999 15.82090 0.02147251673969 41.531 90.18 327.75 0.049980 2013-Feb-23 00:00 *m 303.93357 13.94733 0.02294256367610 42.940 93.41 339.50 0.053322 2013-Feb-24 00:00 *m 305.71184 12.27292 0.02446331074838 44.114 96.25 349.80 0.056774 2013-Feb-25 00:00 * 307.28183 10.77249 0.02602896800555 45.092 98.77 358.97 0.060321
JPL/Horizons solution 9
JPL/HORIZONS (2013 BS45) 2013-Feb-05 10:47:40 Rec #:750837 (+COV) Soln.date: 2013-Feb-05_00:51:48 # obs: 59 (15 days)
Date__(UT)_HR:MN R.A.(J2000.0)_DEC. delta POS_3sigma DOP_S_3sig DOP_X_3sig RT_delay_3sig 2013-Feb-05 00:00 * 184.66097 36.35563 0.01765897249429 2.996 141.59 514.59 0.074983 2013-Feb-06 00:00 * 189.70550 38.44921 0.01645996592844 4.074 128.34 466.46 0.070079 2013-Feb-07 00:00 * 195.80813 40.56952 0.01537628697177 5.829 112.59 409.21 0.065700 2013-Feb-08 00:00 * 203.17184 42.57039 0.01443135830722 8.474 94.02 341.71 0.061944 2013-Feb-09 00:00 *m 211.92946 44.22512 0.01365155757690 12.250 72.50 263.51 0.058917 2013-Feb-10 00:00 *m 222.01892 45.23858 0.01306421097737 17.374 48.29 175.52 0.056725 2013-Feb-11 00:00 *m 233.05282 45.31586 0.01269406442798 23.938 22.19 80.64 0.055457 2013-Feb-12 00:00 *m 244.32038 44.28389 0.01255871923008 31.780 6.74 24.49 0.055168 2013-Feb-13 00:00 *m 255.01770 42.19068 0.01266455035582 40.449 32.46 117.96 0.055870 2013-Feb-14 00:00 *m 264.55670 39.29183 0.01300503644250 49.315 57.49 208.96 0.057523 2013-Feb-15 00:00 *m 272.69995 35.93451 0.01356242613958 57.760 80.09 291.10 0.060051 2013-Feb-16 00:00 *m 279.48650 32.43604 0.01431184871595 65.352 99.81 362.76 0.063352 2013-Feb-17 00:00 *m 285.09172 29.02276 0.01522593298942 71.889 116.63 423.88 0.067317 2013-Feb-18 00:00 *m 289.72453 25.82609 0.01627838296703 77.356 130.79 475.36 0.071844 2013-Feb-19 00:00 *m 293.57759 22.90526 0.01744599940355 81.845 142.66 518.49 0.076841 2013-Feb-20 00:00 *m 296.81118 20.27367 0.01870940257387 85.495 152.62 554.70 0.082232
Plane-of-sky uncertainties have shrunk by more than an order of magnitude in the last week.
JPL/Horizons solution 4
JPL/HORIZONS (2013 BS45) 2013-Jan-28 10:17:22 Rec #:754272 (+COV) Soln.date: 2013-Jan-28_00:51:01 # obs: 23 (7 days)
Date__(UT)_HR:MN R.A.(J2000.0)_DEC. delta POS_3sigma DOP_S_3sig DOP_X_3sig RT_delay_3sig 2013-Feb-05 00:00 * 184.66058 36.35552 0.01766129971479 101.696 344.01 1250.30 0.192584 2013-Feb-06 00:00 * 189.70489 38.44905 0.01646218747090 138.032 313.91 1140.90 0.180792 2013-Feb-07 00:00 * 195.80720 40.56931 0.01537840999747 184.288 279.01 1014.04 0.170153 2013-Feb-08 00:00 * 203.17046 42.57015 0.01443338992651 241.310 239.41 870.12 0.160843 2013-Feb-09 00:00 *m 211.92751 44.22492 0.01365350468994 308.433 196.49 714.12 0.153055 2013-Feb-10 00:00 *m 222.01631 45.23852 0.01306608034081 382.528 154.20 560.44 0.146995 2013-Feb-11 00:00 *m 233.04958 45.31609 0.01269586315774 457.547 121.41 441.27 0.142870 2013-Feb-12 00:00 *m 244.31669 44.28452 0.01256045578555 525.440 112.00 407.06 0.140875 2013-Feb-13 00:00 *m 255.01380 42.19176 0.01266623567426 578.598 130.52 474.36 0.141148 2013-Feb-14 00:00 *m 264.55283 39.29332 0.01300668458388 612.584 164.74 598.73 0.143730 2013-Feb-15 00:00 *m 272.69627 35.93633 0.01356405399456 627.320 203.44 739.40 0.148539 2013-Feb-16 00:00 *m 279.48307 32.43808 0.01431347488190 626.139 241.40 877.36 0.155388 2013-Feb-17 00:00 *m 285.08854 29.02493 0.01522757636289 613.804 276.44 1004.70 0.164023 2013-Feb-18 00:00 *m 289.72160 25.82832 0.01628006155225 594.850 307.72 1118.39 0.174176 2013-Feb-19 00:00 *m 293.57488 22.90749 0.01744772957521 572.777 335.11 1217.93 0.185598 2013-Feb-20 00:00 *m 296.80866 20.27587 0.01871119876771 549.931 358.84 1304.19 0.198074
Dramatic improvement relative to solution 3 but still insufficient to guarantee pointing at Goldstone or Arecibo.
JPL/Horizons solution 3
JPL/HORIZONS (2013 BS45) 2013-Jan-25 16:40:29 Rec #:754159 (+COV) Soln.date: 2013-Jan-24_01:50:19 # obs: 15 (2 days)
Date__(UT)_HR:MN R.A.(J2000.0)_DEC. delta POS_3sigma DOP_S_3sig DOP_X_3sig RT_delay_3sig
2013-Feb-05 00:00 * 184.60477 36.33153 0.01769834375358 2996.055 416.36 1513.23 0.533960
2013-Feb-06 00:00 * 189.62780 38.42080 0.01649920649383 3920.261 323.46 1175.59 0.536186
2013-Feb-07 00:00 * 195.70156 40.53809 0.01541485172254 5065.000 473.50 1720.90 0.529922
2013-Feb-08 00:00 * 203.02797 42.53919 0.01446852585690 6436.490 848.92 3085.36 0.512137
2013-Feb-09 00:00 *m 211.74090 44.20016 0.01368642119635 8000.913 1351.29 4911.21 0.479766
2013-Feb-10 00:00 *m 221.78343 45.22866 0.01309571078347 9664.249 1922.74 6988.11 0.430507
2013-Feb-11 00:00 *m 232.77795 45.33068 0.01272108017438 11267.503 2492.54 9059.04 0.364138
2013-Feb-12 00:00 *m 244.02391 44.33021 0.01258021954966 12615.694 2975.25 10813.43 0.284425
2013-Feb-13 00:00 *m 254.72111 42.26918 0.01267975462816 13540.358 3298.46 11988.09 0.202916
2013-Feb-14 00:00 *m 264.27689 39.39712 0.01301352187657 13961.874 3432.96 12476.93 0.150693
2013-Feb-15 00:00 *m 272.44572 36.05802 0.01356413682561 13908.905 3399.79 12356.37 0.173950
2013-Feb-16 00:00 *m 279.25997 32.56919 0.01430701894742 13486.937 3250.94 11815.39 0.252346
2013-Feb-17 00:00 *m 284.89129 29.15872 0.01521497422559 12826.504 3042.76 11058.78 0.345783
2013-Feb-18 00:00 *m 289.54713 25.96020 0.01626178035586 12043.719 2819.07 10245.76 0.439728
2013-Feb-19 00:00 *m 293.41987 23.03471 0.01742423927120 11223.635 2606.87 9474.53 0.529917
2013-Feb-20 00:00 *m 296.67006 20.39701 0.01868293151110 10420.197 2419.39 8793.16 0.615312
Apparent Magnitudes, Solar Elongations, Lunar Elongations, and Lunar Illumination: Date__(UT)_HR:MN R.A.(J2000.0)_DEC. delta APmag S-O-T /r T-O-M/Illu% 2013-Jan-29 00:00 165.66574 25.64773 0.02801252270998 19.30 147.4536 /L 23.8/ 96.5 2013-Jan-30 00:00 167.33999 26.77885 0.02638657073617 19.19 146.6347 /L 24.9/ 91.8 2013-Jan-31 00:00 169.24389 28.03067 0.02479842034942 19.08 145.5542 /L 30.8/ 85.3 2013-Feb-01 00:00 171.42896 29.41668 0.02325283967798 18.98 144.1690 /L 39.4/ 77.0 2013-Feb-02 00:00 173.96141 30.94966 0.02175599174835 18.88 142.4292 /L 49.2/ 67.3 2013-Feb-03 00:00 176.92670 32.63937 0.02031580111773 18.79 140.2773 /L 59.3/ 56.6 2013-Feb-04 00:00 180.43512 34.48839 0.01894239905331 18.71 137.6486 /L 69.3/ 45.4 2013-Feb-05 00:00 184.62760 36.48480 0.01764863537423 18.64 134.4716 /L 78.8/ 34.2 2013-Feb-06 00:00 189.67926 38.59034 0.01645060446198 18.59 130.6716 /L 87.3/ 23.7 2013-Feb-07 00:00 195.79408 40.72297 0.01536805480304 18.57 126.1784 /L 94.3/ 14.6 2013-Feb-08 00:00 203.17699 42.73543 0.01442442501288 18.58 120.9405 /L 99.2/ 7.3 2013-Feb-09 00:00 211.96219 44.39922 0.01364609571610 18.63 114.9459 /L 101.7/ 2.5 2013-Feb-10 00:00 222.08666 45.41693 0.01306037279281 18.74 108.2500 /L 101.9/ 0.3 2013-Feb-11 00:00 233.15797 45.49176 0.01269194999149 18.92 100.9967 /L 100.5/ 0.8 2013-Feb-12 00:00 244.45730 44.45053 0.01255834511179 19.17 93.4209 /L 98.4/ 3.8 2013-Feb-13 00:00 255.17438 42.34342 0.01266583323930 19.50 85.8170 /L 96.8/ 9.0 2013-Feb-14 00:00 264.72020 39.42910 0.01300780194584 19.90 78.4804 /L 96.5/ 15.8 2013-Feb-15 00:00 272.86059 36.05713 0.01356643970095 20.35 71.6488 /L 98.1/ 23.8 2013-Feb-16 00:00 279.63879 32.54592 0.01431685409125 20.84 65.4704 /L 101.5/ 32.7 2013-Feb-17 00:00 285.23337 29.12198 0.01523168399047 21.35 60.0040 /L 106.6/ 42.0 2013-Feb-18 00:00 289.85514 25.91645 0.01628466215845 21.87 55.2414 /L 112.9/ 51.5 2013-Feb-19 00:00 293.69769 22.98819 0.01745262498530 22.38 51.1343 /L 120.2/ 60.8 2013-Feb-20 00:00 296.92167 20.35029 0.01871622771544 22.87 47.6159 /L 128.1/ 69.8
Setups
We're going to start with the CW setup below. We know nothing about the rotation period, so we'll start with a standard setup in the hope that it will resolve the object.
Due to the very short round-trip time, we will NOT hop the transmitter.
TX polarization RCP RCV polarization LCP & RCP Frequency hops: no hops Bandwidth: 4000 Hz Sampling interval: 2500 x 0.1 usec VME FFT for PSD files: 256 for 0.15.6Hz resolution TX offset : +500 Hz
Ranging setups:
10-usec
baud 10 usec
code 127
PRP 1270 usec
FFT 64
ncoh 1
bandwidth 787 Hz
resolution 24.6 Hz
TXOFF +100Hz (echo in bin 16+4=20)
11-usec
baud 11 usec
code 127
PRP 1397 usec
FFT 64
ncoh 1
bandwidth 716 Hz
resolution 22.4 Hz
TXOFF +100 Hz (echo in bin 16+4=20)
1-usec
baud 1 usec
code 255
FFT 256
ncoh 6
bandwidth 653.6 Hz
resolution 2.55 Hz
TXOFF +50 Hz -> echo would be centered at 128 + 20 = 148
0.125-usec imaging
baud 0.125 usec
code 511
FFT 1024
ncoh 150
bandwidth 104.4 Hz
resolution 0.1 Hz
TXOFF +10 Hz -> echo would be centered at 512 + 98 = 610
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
Instructions
NOTE: Data should be moved to the appropriate subdirectories in aardvark:/export/data0/2013BS45/raw/
2013 BS45 POINTING:
OSOD and predicts are on aardvark
WFG: /export/data3/osod/ops/2013bs45/PRDX.OUT.14v-14-14.s22 /PUNCH.OUT.14v-14-14.s22 /EPH.OUT.s22
POINTING
TX Offsets
Date (UTC) DOY hhmmss RA Dec Macro LHA Dec RTT OSOD
2013 02 12 043 080000 248.4493 43.7203 A 12.5 s18
2013 02 12 043 090000 248.9074 43.6662 A 12.5
2013 02 12 043 100000 249.3498 43.6101 A -1.50 -0.20 12.5
2013 02 12 043 110000 249.7771 43.5502 A 12.5
2013 02 12 043 120000 250.1907 43.4849 A 12.5
TX Offsets Date (UTC) DOY hhmmss RA Dec Macro LHA Dec RTT OSOD
2013 02 13 044 090000 259.2227 41.2124 A 12.7 s22
2013 02 13 044 100000 259.6265 41.1198 A -1.40 -0.30 12.7
2013 02 13 044 110000 260.0146 41.0251 AB 12.8
2013 02 13 044 120000 260.3880 40.9267 B -1.30 -0.40 12.8
2013 02 13 044 130000 260.7483 40.8231 BC 12.8
2013 02 13 044 140000 261.0981 40.7131 C -1.30 -0.40 12.8
2013 02 13 044 150000 261.4403 40.5960 C 12.8
Transmit offsets are given in millidegrees.
PRDX.OUT.14f-14-14.s18 TRANSMITTER: STATION #14, RECEIVER: STATION #14 RECEIVER U.T. RANGE DOPPLER LHA DEC RA EL 2013 FEB 12 08:00 12.5400164723 8033.127 257.1988 43.7203 248.449 15.672 2013 FEB 12 08:10 12.5394543229 8002.446 259.6282 43.7113 248.527 17.128 2013 FEB 12 08:20 12.5388952596 7945.036 262.0581 43.7023 248.604 18.608 2013 FEB 12 08:30 12.5383411638 7860.681 264.4884 43.6934 248.680 20.110 2013 FEB 12 08:40 12.5377939304 7749.212 266.9191 43.6843 248.756 21.634 2013 FEB 12 08:50 12.5372554610 7610.510 269.3502 43.6753 248.832 23.179 2013 FEB 12 09:00 12.5367276743 7444.505 271.7818 43.6662 248.907 24.743 2013 FEB 12 09:10 12.5362124782 7251.176 274.2139 43.6570 248.982 26.326 2013 FEB 12 09:20 12.5357117908 7030.549 276.6463 43.6478 249.057 27.926 2013 FEB 12 09:30 12.5352275231 6782.702 279.0792 43.6385 249.131 29.543 2013 FEB 12 09:40 12.5347615792 6507.760 281.5126 43.6291 249.204 31.176 2013 FEB 12 09:50 12.5343158489 6205.899 283.9463 43.6196 249.277 32.824 2013 FEB 12 10:00 12.5338922152 5877.341 286.3805 43.6101 249.350 34.486 2013 FEB 12 10:10 12.5334925400 5522.359 288.8151 43.6004 249.422 36.161 2013 FEB 12 10:20 12.5331186647 5141.273 291.2501 43.5906 249.494 37.849 2013 FEB 12 10:30 12.5327724031 4734.450 293.6856 43.5807 249.565 39.548 2013 FEB 12 10:40 12.5324555485 4302.303 296.1214 43.5707 249.636 41.258 2013 FEB 12 10:50 12.5321698565 3845.295 298.5577 43.5605 249.707 42.979 2013 FEB 12 11:00 12.5319170559 3363.930 300.9943 43.5502 249.777 44.708 2013 FEB 12 11:10 12.5316988351 2858.760 303.4313 43.5397 249.847 46.446 2013 FEB 12 11:20 12.5315168385 2330.378 305.8687 43.5291 249.916 48.192 2013 FEB 12 11:30 12.5313726712 1779.422 308.3064 43.5183 249.985 49.944 2013 FEB 12 11:40 12.5312678990 1206.569 310.7445 43.5073 250.054 51.703 2013 FEB 12 11:50 12.5312040212 612.540 313.1829 43.4962 250.123 53.465 2013 FEB 12 12:00 12.5311825066 -1.908 315.6217 43.4849 250.191 55.232 2013 FEB 12 12:10 12.5312047481 -635.979 318.0608 43.4734 250.258 57.001 2013 FEB 12 12:20 12.5312720993 -1288.841 320.5002 43.4617 250.326 58.772 2013 FEB 12 12:30 12.5313858473 -1959.627 322.9399 43.4498 250.393 60.542 2013 FEB 12 12:40 12.5315472134 -2647.435 325.3799 43.4376 250.460 62.310 2013 FEB 12 12:50 12.5317573584 -3351.333 327.8201 43.4253 250.527 64.073 2013 FEB 12 13:00 12.5320173766 -4070.359 330.2606 43.4128 250.593 65.830
PRDX.OUT.14f-14-14.s22
TRANSMITTER: STATION #14, RECEIVER: STATION #14
RECEIVER U.T. RANGE DOPPLER LHA DEC RA EL
2013 FEB 13 09:10 12.7423056298 -15557.248 264.8906 41.1971 259.291 19.098
2013 FEB 13 09:20 12.7433995309 -15660.182 267.3295 41.1817 259.359 20.677
2013 FEB 13 09:30 12.7445016525 -15791.710 269.7688 41.1663 259.427 22.277
2013 FEB 13 09:40 12.7456139946 -15951.907 272.2086 41.1509 259.494 23.896
2013 FEB 13 09:50 12.7467385717 -16140.797 274.6488 41.1354 259.560 25.535
2013 FEB 13 10:00 12.7478773908 -16358.354 277.0894 41.1198 259.626 27.191
2013 FEB 13 10:10 12.7490324658 -16604.495 279.5305 41.1042 259.692 28.865
2013 FEB 13 10:20 12.7502057893 -16879.090 281.9720 41.0886 259.758 30.555
2013 FEB 13 10:30 12.7513993528 -17181.954 284.4140 41.0729 259.822 32.260
2013 FEB 13 10:40 12.7526151301 -17512.852 286.8563 41.0570 259.887 33.979
2013 FEB 13 10:50 12.7538550765 -17871.495 289.2991 41.0411 259.951 35.713
2013 FEB 13 11:00 12.7551211216 -18257.545 291.7424 41.0251 260.015 37.460
2013 FEB 13 11:10 12.7564151734 -18670.613 294.1860 41.0090 260.078 39.218
2013 FEB 13 11:20 12.7577391175 -19110.260 296.6300 40.9928 260.141 40.989
2013 FEB 13 11:30 12.7590947934 -19575.999 299.0745 40.9765 260.203 42.770
2013 FEB 13 11:40 12.7604840149 -20067.293 301.5193 40.9600 260.265 44.562
2013 FEB 13 11:50 12.7619085497 -20583.559 303.9645 40.9434 260.327 46.363
2013 FEB 13 12:00 12.7633701262 -21124.165 306.4101 40.9267 260.388 48.173
2013 FEB 13 12:10 12.7648704344 -21688.437 308.8560 40.9098 260.449 49.991
2013 FEB 13 12:20 12.7664110975 -22275.655 311.3023 40.8928 260.509 51.817
2013 FEB 13 12:30 12.7679937082 -22885.055 313.7489 40.8756 260.570 53.649
2013 FEB 13 12:40 12.7696197827 -23515.833 316.1959 40.8583 260.630 55.487
2013 FEB 13 12:50 12.7712907973 -24167.144 318.6432 40.8408 260.689 57.330
2013 FEB 13 13:00 12.7730081605 -24838.106 321.0908 40.8231 260.748 59.178
2013 FEB 13 13:10 12.7747732142 -25527.796 323.5386 40.8052 260.807 61.029
2013 FEB 13 13:20 12.7765872379 -26235.260 325.9868 40.7872 260.866 62.882
2013 BS45 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
http://echo.jpl.nasa.gov/asteroids/2013BS45/2013BS45_planning.html
Asteroid Radar Astronomy
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