2003 UV11 Goldstone Radar Observations Planning
This asteroid was discovered on Oct. 21, 2003 by LONEOS in Flagstaff, Arizona. 2003 UV11 has an absolute magnitude of 19.3, suggesting a diameter within a factor of two of 430 meters, and recent partial lightcurves obtained by B. D. Warner suggest a rotation period of 20-25 hours. 2003 UV11 will approach within 0.013 AU (~5 lunar distances) on Oct. 30, 2010, when it will be a very strong radar target. The primary objective at Goldstone is to use radar speckle tracking (in collaboration with Michael Busch) to determine 2003 UV11's spin vector, which will greatly facilitate 3D shape estimation. This will be a bistatic experiment using S-band CW transmissions at Arecibo and reception of echoes at DSS-13 and DSS-15. We will not use DSS-14 for these observations. One short Goldstone track is scheduled on October 29. Arecibo observations are scheduled from October 27-30. Arecibo is scheduled to transmit CW continuously from 2300-2330 UTC on Oct. 29. Currently Arecibo's pointing is restricted to only 16 degrees away from zenith (i.e., horizons = 74 degrees; normally horizons at Arecibo are at 70.3 deg) due to work on the platform. Recent work at Arecibo has increased the transmitter power to at least 700 kW, so previous SNR estimates on this planning page have all been adjusted upward to reflect the improvement. 2003 UV11 is an excellent optical target until Nov 1st when it becomes a day time object. 2003 UV11 has been classified as a "Potentially Hazardous Asteroid" by the Minor Planet Center.
Orbital and Physical Characteristics orbit type Apollo semimajor axis 1.451 AU eccentricity 0.76 inclination 6.0 deg perihelion distance 0.344 AU aphelion distance 2.558 AU absolute magnitude (H) 19.3 diameter 0.43 km (plus/minus a factor of two) rotation period roughly 20-25 hours (B. D. Warner, pers. comm.) pole direction unknown lightcurve amplitude unknown spectral class unknown Last update: 2010 Oct 27
M.P.E.C. 2003-U39 Issued 2003 Oct. 22, 05:54 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. Supported in part by the Steven and Michele Kirsch Foundation Prepared using the Tamkin Foundation Computer Network MPC@CFA.HARVARD.EDU URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714 2003 UV11 Observations: K03U11V* C2003 10 21.22741 01 56 19.55 +08 33 46.7 16.2 R 699 K03U11V C2003 10 21.24737 01 56 10.83 +08 33 15.3 699 K03U11V C2003 10 21.26740 01 56 01.99 +08 32 43.3 699 K03U11V C2003 10 21.28646 01 55 53.38 +08 32 12.8 16.7 704 K03U11V C2003 10 21.28745 01 55 53.10 +08 32 11.7 699 K03U11V C2003 10 21.29846 01 55 48.05 +08 31 54.0 17.0 704 K03U11V C2003 10 21.31067 01 55 42.60 +08 31 34.1 16.7 704 K03U11V C2003 10 21.32247 01 55 37.34 +08 31 15.0 16.9 704 K03U11V C2003 10 21.33418 01 55 32.11 +08 30 56.0 16.8 704 K03U11V 5C2003 10 21.36303 01 55 19.63 +08 30 10.1 16.5 R 673 K03U11V 5C2003 10 21.36384 01 55 19.28 +08 30 08.8 673 K03U11V 5C2003 10 21.36476 01 55 18.86 +08 30 07.3 673 K03U11V 5C2003 10 21.36557 01 55 18.50 +08 30 06.0 673 K03U11V 5C2003 10 21.36648 01 55 18.10 +08 30 04.5 673 K03U11V 5C2003 10 21.36730 01 55 17.76 +08 30 03.1 673 K03U11V C2003 10 21.40527 01 54 59.98 +08 28 54.9 16.2 R 649 K03U11V C2003 10 21.40669 01 54 59.36 +08 28 52.5 16.4 R 649 K03U11V C2003 10 21.40813 01 54 58.72 +08 28 50.2 16.2 R 649 K03U11V 5C2003 10 22.20249 01 48 56.22 +08 05 37.2 16.5 R 673 K03U11V 5C2003 10 22.20341 01 48 55.74 +08 05 35.3 673 K03U11V 5C2003 10 22.20434 01 48 55.24 +08 05 33.6 673 K03U11V 5C2003 10 22.20527 01 48 54.81 +08 05 32.0 673 K03U11V 5C2003 10 22.20619 01 48 54.34 +08 05 30.0 673 K03U11V 5C2003 10 22.20712 01 48 53.87 +08 05 28.3 673 K03U11V C2003 10 22.22518 01 48 43.52 +08 04 51.4 16.1 R 649 K03U11V C2003 10 22.22696 01 48 42.62 +08 04 48.0 16.1 R 649 K03U11V C2003 10 22.22873 01 48 41.70 +08 04 44.7 16.1 R 649 Observer details: 649 Powell Observatory, Louisburg. Observers R. Trentman, R. Fredrick. 0.75-m Newtonian + CCD. 673 Table Mountain Observatory, Wrightwood. Observer J. Young. 0.6-m reflector + CCD. 699 Lowell Observatory-LONEOS. Observer B. A. Skiff. 0.59-m LONEOS Schmidt + 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 UV11 Epoch 2003 Oct. 8.0 TT = JDT 2452920.5 MPC M 318.94627 (2000.0) P Q n 0.57231352 Peri. 124.94479 -0.91895206 -0.39046113 a 1.4367462 Node 32.17492 +0.31936003 -0.81918530 e 0.7615196 Incl. 5.96975 +0.23137909 -0.42008993 P 1.72 H 19.9 G 0.15 From 27 observations 2003 Oct. 21-22. Ephemeris: 2003 UV11 a,e,i = 1.44, 0.76, 6 q = 0.3426 Date TT R. A. (2000) Decl. Delta r Elong. Phase V 2003 10 18 02 14.44 +09 41.1 0.216 1.209 168.9 9.1 17.6 2003 10 20 02 04.20 +09 03.7 0.189 1.184 173.2 5.7 17.1 2003 10 22 01 50.54 +08 12.3 0.163 1.158 177.0 2.6 16.6 2003 10 24 01 31.80 +06 59.3 0.137 1.131 173.3 5.9 16.3 2003 10 26 01 05.22 +05 11.0 0.114 1.105 164.8 13.6 16.2 2003 10 28 00 26.24 +02 24.8 0.093 1.077 152.9 24.9 16.1 2003 10 30 23 28.41 -01 48.3 0.076 1.049 135.9 41.2 16.0 2003 11 01 22 08.09 -07 22.1 0.068 1.021 113.2 63.3 16.3 2003 11 03 20 37.17 -12 25.6 0.069 0.993 88.4 87.6 17.2 2003 11 05 19 19.29 -15 11.5 0.081 0.963 67.3 108.3 18.4 2003 11 07 18 23.79 -16 08.2 0.098 0.934 52.0 123.2 19.8 Kyle E. Smalley (C) Copyright 2003 MPC M.P.E.C. 2003-U39 Read MPEC 2003-U38
Target Name: 2003 UV11 HMag: 19.3 Diameter: 0.43 km (plus/minus a factor of two) Period: 20 h B. D. Warner, pers. comm. SNR estimates below assume Ptx = 700 kW at Arecibo. SNRs at Arecibo and DSS-13/DSS-15 assuming Arecibo horizon = 74 degrees: <--Arecibo--> Goldstone # SNR/ SNR/ SNR/ Start date UT window RA, dec dist runs date run run --------------------------------------------------------------------------- 2010 Oct 23 04:10-06:21 43 16 0.103 35 190 31 2010 Oct 24 04:01-06:12 42 16 0.089 40 340 53 2010 Oct 25 03:50-06:02 41 16 0.074 48 690 100 2010 Oct 26 03:37-05:49 38 17 0.060 58 1600 210 2010 Oct 27 03:17-05:29 34 18 0.046 74 4600 540 2010 Oct 28 02:44-04:55 27 20 0.032 98 18000 1800 2010 Oct 29 01:37-03:39 10 22 0.020 136 110000 9300 2010 Oct 29-30 22:52-00:45 328 21 0.013 182 560000 42000 1100 2010 Oct 30 19:51-21:07 280 6 0.016 101 200000 20000 After Oct. 30 2003 UV11 moves too far south for Arecibo to track.
Goldstone track at DSS-13 and DSS-15: UT UT PDT Duration Round-trip DOY Date TX Window TX Window hh:mm time (sec) SNR/RTT --- ---- --------- --------- --------- ------- ------- 302-303 Oct 29-30 2240-0055 1540-1755 Oct 29 2:15 13 1100 Total time available 2300-2330 1600-1630 Oct 29 0:30 Receive S-band CW transmissions from Arecibo 2330-0045 We will try to receive Arecibo 20 MHz (7.5 m) imaging transmissions. - - - - - - - - - - - - - - - - - - - Arecibo Tracks The table below lists Arecibo view periods for horizons at 74 degrees (due to work on the platform; normally the horizons are at 70.3 deg). Horizon = 74 degrees: UT UT PDT AST Duration DOY Date TX Window TX Window TX Window hh:mm --- ---- --------- --------- --------- --------- 300 Oct 27 0317 0529 2017 2229 Oct 26 2333 0112 Oct 26/27 2:12 301 Oct 28 0244 0455 1944 2155 Oct 27 2300 0038 Oct 27/28 2:11 302 Oct 29 0137 0339 1837 2039 Oct 28 2153 2323 Oct 28 2:02 302/303 Oct 29/30 2252 0045 1552 1745 Oct 29 1906 2031 Oct 29 1:53 303 Oct 30 1951 2107 1251 1407 Oct 30 1551 1707 Oct 30 1:16
From Jon Giorgini, Oct 19 2010: With 375 optical measurements (1996-Oct-12 to 2010-Oct-17), 2003 UV11 solution #29 was computed. 3-sigma uncertainties S-band are tabulated below: Date__(UT)__HR:MN POS_3sigma DOP_S_3sig RT_delay_3sig 2010-Oct-27 00:00 2.534 2.07 0.000520 2010-Oct-28 00:00 3.400 1.86 0.000568 2010-Oct-29 00:00 4.758 1.44 0.000649 2010-Oct-30 00:00 8.079 1.44 0.000656 2010-Oct-31 00:00 9.401 2.73 0.000285 --------------------------------------------------------------------- Apparent Magnitudes and Solar Elongations: Date__(UT)__HR:MN R.A._(J2000.0)_DEC. APmag delta S-O-T /r 2010-Oct-19 00:00 45.83749 14.63418 16.68 0.16579666541372 157.6403 /L 2010-Oct-20 00:00 45.44951 14.77375 16.42 0.15082957617973 158.9720 /L 2010-Oct-21 00:00 44.96100 14.94052 16.14 0.13593234191073 160.3937 /L 2010-Oct-22 00:00 44.33727 15.14408 15.82 0.12110494141276 161.9348 /L 2010-Oct-23 00:00 43.52446 15.39896 15.47 0.10634921917240 163.6391 /L 2010-Oct-24 00:00 42.43436 15.72810 15.06 0.09167058954857 165.5738 /L 2010-Oct-25 00:00 40.91199 16.16991 14.58 0.07708165835554 167.8425 /L 2010-Oct-26 00:00 38.65916 16.79320 14.01 0.06261080784208 170.5803 /L 2010-Oct-27 00:00 35.02455 17.73135 13.29 0.04832580783857 173.6216 /L 2010-Oct-28 00:00 28.30129 19.25749 12.57 0.03441401738357 172.7442 /T 2010-Oct-29 00:00 12.68712 21.74475 12.02 0.02155360506929 158.8872 /T 2010-Oct-30 00:00 327.74991 20.47405 12.13 0.01320833387320 116.7041 /T 2010-Oct-31 00:00 274.54622 4.05961 15.16 0.01769712667788 61.7747 /T 2010-Nov-01 00:00 254.97884 -4.09172 n.a. 0.02967574430629 39.7959 /T
NOTE: This primarily a CW experiment at Goldstone. Estimated bandwidth: ~0.6 Hz (D = 0.43 km, P = 20 h) Note that we're receiving at S-band! CW setup: --------------------------------------------------------------------------- TX polarization LCP (at Arecibo) RCV polarization LCP & RCP Frequency hops: None Arecibo does not hop their transmitter. Dwell 30 seconds Create a new file every 30 seconds. Other parts of the setup will be very different from regular CW observations, so the usual setups don't apply in this case. Bandwidth: Sampling interval: VME FFT for PSD files: - - - - - - - - - - After CW observations conclude at 23:30 UTC, Arecibo will probably switch 20 MHz (7.5 meter) resolution binary phase-coded delay-Doppler imaging. We will switch ephemerides and try to receive images until the object sets at Arecibo at 0045 UTC. We will post more information about the imaging observations soon.
DSS 13, DSS 15: --------------- OSOD was set up on aardvark. Only the 2380 MHz receiver predicts are intended to be used, so as to receive the Arecibo transmissions to geocenter at 2380MHz: /export/data3/osod/ops/2003uv11/ Files for use at DSS-15: PRDX.OUT.01-99-15.s29 DSS-15 PUNCH.OUT.01-99-15.s29 DSS-15 Files for use at DSS-13: PRDX.OUT.01-99-13.s29 DSS-13 PUNCH.OUT.01-99-13.s29 DSS-13 Files for bistatic imaging after the CW observations conclude: PRDX.OUT.01-01-13.s29 PUNCH.OUT.01-01-13.s29 PRDX.OUT.01-01-15.s29 PUNCH.OUT.01-01-15.s29 These files are specific for Arecibo transmissions to each antenna.
POINTING Date (UTC) hhmmss RA Dec OSOD DSS-13 Macros (for 20 MHz imaging) Macro A 2010 OCT 29 23:30 20.6838 329.375 29 2010 OCT 29 23:40 20.6130 328.918 2010 OCT 29 23:50 20.5407 328.460 Macro B 2010 OCT 29 23:50 20.5407 328.460 2010 OCT 30 00:00 20.4668 328.000 2010 OCT 30 00:10 20.3915 327.539 Macro C 2010 OCT 30 00:10 20.3915 327.539 2010 OCT 30 00:20 20.3146 327.077 2010 OCT 30 00:30 20.2362 326.613 Macro D 2010 OCT 30 00:30 20.2362 326.613 2010 OCT 30 00:40 20.1563 326.149 2010 OCT 30 00:50 20.0749 325.684 DSS-15 Macros (for 20 MHz imaging) Macro A 2010 OCT 29 23:30 20.6832 329.375 2010 OCT 29 23:40 20.6124 328.918 2010 OCT 29 23:50 20.5401 328.460 Macro B 2010 OCT 29 23:50 20.5401 328.460 2010 OCT 30 00:00 20.4663 328.000 2010 OCT 30 00:10 20.3909 327.539 Macro C 2010 OCT 30 00:10 20.3909 327.539 2010 OCT 30 00:20 20.3140 327.077 2010 OCT 30 00:30 20.2356 326.613 Macro D 2010 OCT 30 00:30 20.2356 326.613 2010 OCT 30 00:40 20.1557 326.149 2010 OCT 30 00:50 20.0743 325.684
PRDX.OUT.s??? TRANSMITTER: STATION #14, RECEIVER: STATION #14 RECEIVER U.T. RANGE DOPPLER LHA DEC RA EL
2003 UV11 GOLDSTONE MASTERLOG
============================================================================== Receive TX Setup hops dwell code ncoh FFT runs start -stop OSOD offset Poln Notes ------------------------------------------------------------------------------ POINTING TX Offsets Date (UTC) DOY hhmmss RA Dec Macro LHA Dec RTT OSOD
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/2003UV11/2003UV11_planning.html