(143651) 2003 QO104 Goldstone Radar Observations Planning
(143651) 2003 QO104 was discovered by the Haleakala-NEAT/MSSS on August 31, 2003. Its closest approach will be at 0.095 AU (~37 lunar distances) on June 09, 2009, but due to the size of the object (2.2 km) and very slow period (~112 hr), it will be a strong radar target. We expect to image it with 0.125 usec resolution at Goldstone and 0.05 usec at Arecibo. The object's bandwidth (asuming subradar latitude=0 deg) will be ~2 Hz at Goldstone and ~0.5 Hz at Arecibo. The large lightcurve amplitude (~1 mag) suggests an elongated shape. This object will brighten below 14th magnitude in early June when it will be a good target for photometric and spectroscopic observations. 2003 QO104 has been classified as a "Potentially Hazardous Asteroid" by the Minor Planet Center.
Orbital and Physical Characteristics orbit type Apollo semimajor axis 2.135 AU eccentricity 0.52 inclination 11.6° perihelion distance 1.015 AU aphelion distance 3.255 AU absolute magnitude (H) 15.9 diameter 2.2 km (+- factor of two) rotation period ~112 hr pole direction unknown lightcurve amplitude ~1 mag spectral class S Last update: 2009 Jun05
M.P.E.C. 2003-R13 Issued 2003 Sept. 2, 17:51 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://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
2003 QO104
Observations:
K03QA4O* C2003 08 31.57286 01 41 42.87 -07 19 17.3 20.4 608
K03QA4O C2003 08 31.58353 01 41 42.20 -07 19 23.1 21.0 608
K03QA4O C2003 08 31.59426 01 41 41.66 -07 19 26.7 20.6 608
K03QA4O C2003 09 01.32138 01 41 04.11 -07 24 19.9 19.2 704
K03QA4O C2003 09 01.33330 01 41 03.43 -07 24 23.8 19.2 704
K03QA4O C2003 09 01.34530 01 41 02.72 -07 24 29.2 19.2 704
K03QA4O C2003 09 01.35729 01 41 02.12 -07 24 34.2 19.4 704
K03QA4O C2003 09 02.08227 01 40 23.04 -07 29 29.6 636
K03QA4O C2003 09 02.08646 01 40 22.74 -07 29 32.4 636
K03QA4O C2003 09 02.09105 01 40 22.51 -07 29 34.2 636
Observer details:
608 Haleakala-NEAT/MSSS. Observers R. Bambery, E. Helin, S. Pravdo, M. Hicks,
K. Lawrence, P. Kervin, J. Africano, R. Maeda. 1.2-m reflector + CCD.
636 Essen. Observers A. Knoefel, T. Payer. 0.32-m f/5.7 reflector + CCD.
704 Lincoln Laboratory ETS, New Mexico. Observers M. Blythe, F. Shelly,
M. Bezpalko, R. Huber, L. Manguso, D. Torres, R. Kracke, M. McCleary,
H. Stange. Measurers J. Stuart, R. Sayer, J. Evans, J. Kommers. 1.0-m
f/2.15 reflector + CCD.
Orbital elements:
2003 QO104
Epoch 2003 Aug. 29.0 TT = JDT 2452880.5 MPC
M 210.10572 (2000.0) P Q
n 0.54394896 Peri. 145.37293 -0.96879083 -0.13794613
a 1.4862685 Node 28.88720 -0.04816186 -0.71025958
e 0.7041960 Incl. 25.23423 +0.24315582 -0.69029139
P 1.81 H 15.6 G 0.15
From 10 observations 2003 Aug. 31-Sept. 2.
Ephemeris:
2003 QO104 a,e,i = 1.49, 0.70, 25 q = 0.4396
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2003 08 29 01 43.78 -07 02.6 1.695 2.483 131.6 17.7 19.6
2003 09 08 01 34.30 -08 11.6 1.584 2.463 142.8 14.3 19.4
2003 09 18 01 20.98 -09 27.7 1.497 2.440 153.9 10.4 19.1
2003 09 28 01 04.29 -10 41.9 1.438 2.413 162.7 7.1 18.8
2003 10 08 00 45.52 -11 42.6 1.411 2.383 162.6 7.2 18.8
2003 10 18 00 26.49 -12 19.8 1.416 2.349 153.3 11.0 18.9
2003 10 28 00 09.12 -12 28.0 1.452 2.312 141.2 15.6 19.1
2003 11 07 23 54.94 -12 07.2 1.512 2.271 129.0 19.8 19.3
2003 11 17 23 44.70 -11 21.4 1.590 2.226 117.4 23.2 19.4
2003 11 27 23 38.51 -10 15.6 1.679 2.177 106.6 25.8 19.6
2003 12 07 23 36.12 -08 54.0 1.772 2.124 96.6 27.4 19.7
2003 12 17 23 37.05 -07 20.2 1.864 2.066 87.3 28.4 19.8
2003 12 27 23 40.83 -05 36.1 1.951 2.005 78.6 28.8 19.8
2004 01 06 23 47.05 -03 42.9 2.028 1.938 70.6 28.6 19.8
2004 01 16 23 55.34 -01 41.3 2.092 1.867 63.1 28.0 19.8
Timothy B. Spahr (C) Copyright 2003 MPC M.P.E.C. 2003-R13
Target Name: 2003 QO104
HMag: 15.9
Diameter: 2.20 km
Period: 112.0 h
LST # max
start date window window RA, dec dist runs SNR SNR/run
-----------------------------------------------------------------------------
2009 May 22 20:56-07:12 05:11-15:29 155, 17 0.137 105 180 19
2009 May 23 20:57-07:03 05:16-15:24 155, 15 0.133 106 200 21
2009 May 24 20:58-06:54 05:21-15:18 155, 13 0.129 107 220 23
2009 May 25 21:00-06:45 05:27-15:13 155, 11 0.125 107 240 25
2009 May 26 21:02-06:35 05:33-15:07 155, 9 0.122 107 270 28
2009 May 27 21:04-06:25 05:39-15:01 155, 7 0.118 133 330 31
2009 May 28 21:07-06:15 05:46-14:55 155, 5 0.115 133 360 34
2009 May 29 21:11-06:03 05:54-14:47 155, 2 0.112 132 390 38
2009 May 30 21:16-05:51 06:03-14:39 155, -1 0.109 132 430 41
2009 May 31 21:21-05:38 06:11-14:30 156, -4 0.106 130 460 45
2009 Jun 01 21:27-05:24 06:21-14:20 156, -6 0.104 127 490 48
2009 Jun 02 21:35-05:09 06:33-14:09 156, -10 0.101 124 510 51
2009 Jun 03 21:44-04:53 06:46-13:57 156, -13 0.099 119 520 53
2009 Jun 04 21:55-04:34 07:01-13:41 156, -16 0.098 112 520 54
2009 Jun 05 22:09-04:13 07:19-13:24 156, -20 0.096 104 510 55
2009 Jun 06 22:25-03:49 07:39-13:04 156, -23 0.095 93 480 54
2009 Jun 07 22:47-03:20 08:05-12:39 156, -27 0.095 79 430 51
2009 Jun 08 23:18-02:42 08:40-12:05 156, -30 0.095 59 350 48
Goldstone SNRs assume Ptx = 430 kW
Goldstone Schedule
UT UT PST AST Duration Round-trip
DOY Date TX Window TX Window TX Window hh:mm time (sec) SNR/Run
--- ---- --------- --------- --------- --------- ------- -------
144 May 24-25 2345-0320 1645-2020 May 24 1945-2320 May 24-25 03:35 128.8 23 (cancelled-transmitter problems)
147 May 27 0210-0405 1910-2105 May 26 2210-0005 May 26 01:55 121.2 31
150 May 30-31 2345-0530 1645-2230 May 30 1945-0130 May 30-31 05:45 108.4 41
152 Jun 01 0015-0300 1715-2000 May 31 2015-2300 May 31 02:45 105.9 45
158 Jun 07 0015-0345 1715-2045 Jun 06 2015-2345 Jun 06 03:30 95.3 54
Arecibo Schedule
146 May 26 2116-2343 1416-1643 May 26 1716-1943 May 26 02:27 121.9 340
147 May 27 2118-2334 1418-1634 May 27 1718-1934 May 27 02:16 118.4 370
148 May 28 2122-2322 1422-1622 May 28 1722-1922 May 28 02:00 115.1 410
149 May 29 2129-2307 1429-1607 May 29 1729-1907 May 29 01:38 111.9 420
Arecibo SNRs assume Ptx = 500 kW
With 495 optical measurements (1981-Jul-10 to 2009-Jun-2), 2 delay and 2 Doppler, 143651 (2003 QO104) solution #123 was estimated. Formal 3-sigma uncertainties follow. Date__(UT)__HR:MN POS_3sigma DOP_X_3sig RT_delay_3sig 2009-Jun-05 00:00 0.539 0.40 0.000060 2009-Jun-06 00:00 0.550 0.42 0.000069 2009-Jun-07 00:00 0.560 0.45 0.000078 2009-Jun-08 00:00 0.568 0.47 0.000088 2009-Jun-09 00:00 0.573 0.49 0.000097 --------------------------------------------------------------------------------- With 476 optical measurements 1981-Jul-10 to 2009-May-19, 143651 (2003 QO104) solution #115 was computed. Formal 3-sigma S/X-band uncertainties are shown below. Date__(UT)__HR:MN POS_3sigma DOP_S_3sig DOP_X_3sig RT_delay_3sig 2009-May-23 00:00 0.872 0.18 0.63 0.001533 2009-May-25 00:00 1.018 0.17 0.62 0.001527 2009-May-27 00:00 1.197 0.17 0.62 0.001513 2009-May-29 00:00 1.415 0.18 0.63 0.001489 2009-May-31 00:00 1.672 0.18 0.66 0.001451 2009-Jun-02 00:00 1.964 0.19 0.70 0.001398 2009-Jun-04 00:00 2.280 0.21 0.75 0.001328 2009-Jun-06 00:00 2.596 0.23 0.81 0.001240 2009-Jun-08 00:00 2.884 0.24 0.87 0.001137 From Horizons, 2009 May 08: JPL Solution 106, #obs = 451 (1981-2009) Date__(UT)__HR:MN R.A._(J2000.0)_DEC. delta POS_3sigma DOP_S-sig DOP_X-sig RT_delay-sig 2009-May-22 00:00 *m 154.86381 18.83274 .141118449965287 1.105 0.20 0.73 0.001665 2009-May-23 00:00 *m 154.89740 17.15673 .137070338775891 1.183 0.20 0.71 0.001663 2009-May-24 00:00 *m 154.93513 15.37870 .133108752268546 1.269 0.20 0.70 0.001658 2009-May-25 00:00 *m 154.97696 13.49196 .129245909552880 1.364 0.19 0.69 0.001652 2009-May-26 00:00 *m 155.02284 11.48980 .125495103090556 1.467 0.19 0.68 0.001643 2009-May-27 00:00 *m 155.07275 9.36562 .121870782114565 1.580 0.19 0.68 0.001631 2009-May-28 00:00 *m 155.12664 7.11319 .118388615317349 1.702 0.19 0.68 0.001616 2009-May-29 00:00 *m 155.18450 4.72689 .115065512130176 1.834 0.19 0.69 0.001599 2009-May-30 00:00 *m 155.24635 2.20208 .111919582780945 1.975 0.19 0.69 0.001577 2009-May-31 00:00 *m 155.31226 -0.46448 .108970020957868 2.126 0.20 0.71 0.001552 2009-Jun-01 00:00 *m 155.38239 -3.27416 .106236896622370 2.285 0.20 0.72 0.001522 2009-Jun-02 00:00 *m 155.45702 -6.22595 .103740849345891 2.450 0.21 0.74 0.001488 2009-Jun-03 00:00 *m 155.53654 -9.31590 .101502675911732 2.619 0.21 0.76 0.001450 2009-Jun-04 00:00 *m 155.62152 -12.53667 .099542812085981 2.791 0.22 0.79 0.001407 2009-Jun-05 00:00 * 155.71269 -15.87721 .097880718927493 2.960 0.23 0.81 0.001360 2009-Jun-06 00:00 * 155.81101 -19.32250 .096534198636178 3.124 0.23 0.84 0.001309 2009-Jun-07 00:00 * 155.91769 -22.85373 .095518681729313 3.277 0.24 0.87 0.001255 2009-Jun-08 00:00 * 156.03423 -26.44866 .094846542633271 3.417 0.25 0.90 0.001198 2009-Jun-09 00:00 * 156.16251 -30.08232 .094526510022641 3.539 0.26 0.93 0.001139 2009-Jun-10 00:00 * 156.30478 -33.72803 .094563237288480 3.640 0.27 0.95 0.001081 --------------------------------------------------------- Apparent Magnitudes and Solar Elongations: Date__(UT)__HR:MN R.A._(J2000.0)_DEC. APmag delta S-O-T /r 2009-May-22 00:00 *m 154.86381 18.83274 14.58 .141118449965287 88.9696 /T 2009-May-23 00:00 *m 154.89740 17.15673 14.53 .137070338775891 88.6491 /T 2009-May-24 00:00 *m 154.93513 15.37870 14.49 .133108752268546 88.3650 /T 2009-May-25 00:00 *m 154.97696 13.49196 14.44 .129245909552880 88.1215 /T 2009-May-26 00:00 *m 155.02284 11.48980 14.39 .125495103090556 87.9231 /T 2009-May-27 00:00 *m 155.07275 9.36562 14.34 .121870782114565 87.7744 /T 2009-May-28 00:00 *m 155.12664 7.11319 14.28 .118388615317349 87.6806 /T 2009-May-29 00:00 *m 155.18450 4.72689 14.23 .115065512130176 87.6470 /T 2009-May-30 00:00 *m 155.24635 2.20208 14.18 .111919582780945 87.6793 /T 2009-May-31 00:00 *m 155.31226 -0.46448 14.12 .108970020957868 87.7829 /T 2009-Jun-01 00:00 *m 155.38239 -3.27416 14.07 .106236896622370 87.9631 /T 2009-Jun-02 00:00 *m 155.45702 -6.22595 14.01 .103740849345891 88.2247 /T 2009-Jun-03 00:00 *m 155.53654 -9.31590 13.96 .101502675911732 88.5719 /T 2009-Jun-04 00:00 *m 155.62152 -12.53667 13.90 .099542812085981 89.0073 /T 2009-Jun-05 00:00 * 155.71269 -15.87721 13.85 .097880718927493 89.5324 /T 2009-Jun-06 00:00 * 155.81101 -19.32250 13.80 .096534198636178 90.1465 /T 2009-Jun-07 00:00 * 155.91769 -22.85373 13.76 .095518681729313 90.8468 /T 2009-Jun-08 00:00 * 156.03423 -26.44866 13.72 .094846542633271 91.6284 /T 2009-Jun-09 00:00 * 156.16251 -30.08232 13.68 .094526510022641 92.4843 /T 2009-Jun-10 00:00 * 156.30478 -33.72803 13.66 .094563237288480 93.4053 /T
CW setup:
---------------------------------------------------------------------------
TX polarization RCP
RCV polarization LCP & RCP
Frequency hops: 4
Dwell 20 seconds
Bandwidth: 4000 Hz
Sampling interval: 2500 x 0.1 usec
VME FFT for PSD files: 16384 for 0.244-Hz resolution
Ranging setups:
---------------------------------------------------------------------------
127 x 64 10-usec single sample
baud 10 usec
code 127
gates 127
PRP 1270 usec
FFT 64
CLT VME ?
PFS ?
ncoh 4
bandwidth 196.9 Hz
resolution 3.1 Hz
TXOFF +50 Hz -> echo will be centered at +16 bins or in bin 32 + 16 = 48
---------------------------------------------------------------------------
127 x 64 11-usec single sample
baud 11 usec
code 127
gates 127
PRP 1397 usec
FFT 64
CLT VME ?
PFS ?
ncoh 4
bandwidth 179.0 Hz
resolution 2.8 Hz
TXOFF +50 Hz --> echo will be centered at +18 bins or in bin 32 + 18 = 50
-------------------------------------------------------------------------
1-usec single sample
baud 1 usec
code 127
ncoh 20
bandwidth 393.7 Hz
FFT 128
dfreq 3.1 Hz
TXoff +50 Hz (echo in bin 64+16 =80)
-------------------------------------------------------------------------------
0.5-usec imaging (SNRs permitting)
------------------
baud 0.5 usec
code 127
FFT 256
ncoh 306
bandwidth 51.5 Hz
resolution 0.2 Hz
TXOFF +10 Hz, echo is in bin 128+50=178
If VME has problems displaying this, please use instead:
baud 0.5 usec
code 127
FFT 128
ncoh 306
bandwidth 51.5 Hz
resolution 0.4 Hz
TXOFF +10 Hz, echo is in bin 64+25=89
----------------------------------------------
0.25-usec ranging
baud 0.25 usec
code 255
FFT 128
ncoh 612
bandwidth 25.6 Hz
resolution 0.2 Hz
TXOFF +5 Hz, echo is in bin 64+25=89
_____________________________________________________________________
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/a143651/PRDX.OUT.s123
/PUNCH.OUT.s123
/EPH.OUT.s123
POINTING
TX Offsets
Date (UTC) DOY hhmmss RA Dec Macro LHA Dec RTT OSOD
2009 06 07 158 000000 156.0315 -22.9044 A 95.3
2009 06 07 158 010000 156.0303 -23.0535 A 95.3
2009 06 07 158 020000 156.0290 -23.2021 A 0.10 -3.9 95.3 123
2009 06 07 158 030000 156.0280 -23.3503 A 95.2
2009 06 07 158 040000 156.0277 -23.4980 A 95.2
Transmit offsets are given in millidegrees.
PRDX.OUT.s123
TRANSMITTER: STATION #14, RECEIVER: STATION #14
RECEIVER U.T. RANGE DOPPLER LHA DEC RA EL
2009 JUN 07 00:00 95.3214426501 89601.900 342.6064 -22.9044 156.032 29.386
2009 JUN 07 00:10 95.3151997834 88526.051 345.1134 -22.9293 156.031 29.964
2009 JUN 07 00:20 95.3090326778 87440.669 347.6205 -22.9542 156.031 30.453
2009 JUN 07 00:30 95.3029419303 86347.383 350.1275 -22.9790 156.031 30.851
2009 JUN 07 00:40 95.2969280513 85247.838 352.6346 -23.0038 156.031 31.155
2009 JUN 07 00:50 95.2909914076 84143.693 355.1417 -23.0287 156.031 31.364
2009 JUN 07 01:00 95.2851322772 83036.610 357.6487 -23.0535 156.030 31.478
2009 JUN 07 01:10 95.2793507933 81928.259 0.1558 -23.0783 156.030 31.496
2009 JUN 07 01:20 95.2736469934 80820.312 2.6629 -23.1031 156.030 31.417
2009 JUN 07 01:30 95.2680207905 79714.440 5.1700 -23.1279 156.030 31.242
2009 JUN 07 01:40 95.2624719884 78612.305 7.6770 -23.1526 156.029 30.972
2009 JUN 07 01:50 95.2570002524 77515.567 10.1841 -23.1774 156.029 30.608
2009 JUN 07 02:00 95.2516051535 76425.871 12.6911 -23.2021 156.029 30.152
2009 JUN 07 02:10 95.2462861411 75344.849 15.1982 -23.2268 156.029 29.606
2009 JUN 07 02:20 95.2410425508 74274.116 17.7052 -23.2515 156.029 28.973
2009 JUN 07 02:30 95.2358736048 73215.265 20.2122 -23.2762 156.028 28.255
2009 JUN 07 02:40 95.2307784121 72169.867 22.7192 -23.3009 156.028 27.455
2009 JUN 07 02:50 95.2257559790 71139.467 25.2262 -23.3256 156.028 26.576
2009 JUN 07 03:00 95.2208052047 70125.578 27.7332 -23.3503 156.028 25.623
2009 JUN 07 03:10 95.2159248691 69129.684 30.2401 -23.3749 156.028 24.597
2009 JUN 07 03:20 95.2111136743 68153.229 32.7471 -23.3996 156.028 23.502
2009 JUN 07 03:30 95.2063701938 67197.625 35.2540 -23.4242 156.028 22.343
2009 JUN 07 03:40 95.2016929255 66264.239 37.7608 -23.4488 156.028 21.122
2009 JUN 07 03:50 95.1970802654 65354.396 40.2677 -23.4734 156.028 19.842
2003 QO104 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 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/2003QO104/2003QO104_planning.html
Asteroid Radar Astronomy