1992 UY4 Planning
1992 UY4 was discovered by Carolyn Shoemaker at Palomar on October 25, 1992. It will approach within 0.040 AU (15.5 lunar distances) on August 8. Its absolute magnitude of 17.3 suggests a diameter within a factor of two of 1 km. Its taxonomic class (composition) is unknown. A concerted campaign by several astronomers in Spain, Switzerland, Brazil, Australia, and the United States has yielded a rotation period of about 13 hours. The lightcurve amplitude is about 0.3 mag, suggesting a somewhat elongated shape. With this rotation period, we could obtain thorough rotation phase coverage if the observations go well. The lightcurve observations were conducted by Cristovao Jacques in Brazil; Reiner Stoss, Jaime Nomen, and Salvador Sanchez in Spain; and Greg Crawford in Australia. The rotation period was estimated and by Raoul Behrend (Switzerland), Brian Warner and Alan Harris (United States), and Peter Kusnirak (Czech Republic).
These will be combined Goldstone and Arecibo observations. Goldstone observations are scheduled on August 1, 2, 4, and 7. Arecibo observations are scheduled on August 6-10.
Orbital and Physical Characteristics orbit type Apollo semimajor axis 2.654 AU eccentricity 0.620 inclination 2.84° perihelion distance 1.009 AU aphelion distance 4.299 AU absolute magnitude (H) 17.5 diameter unknown rotation period ~13 h pole direction unknown lightcurve amplitude ~0.3 mag spectral class unknown Last updated: 2005 August 4
Circular No. 5662 Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION Postal Address: Central Bureau for Astronomical Telegrams Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A. Telephone 617-495-7244/7440/7444 (for emergency use only) TWX 710-320-6842 ASTROGRAM CAM EASYLINK 62794505 MARSDEN@CFA or GREEN@CFA (.SPAN, .BITNET or .HARVARD.EDU) 1992 UY4 C. S. Shoemaker reports her measurements of an asteroidal object found on films taken in late October by E. M. Shoemaker, H. E. Holt, D. H. Levy and herself with the 0.46-m Palomar Schmidt. Computations by the undersigned indicated an Amor-like orbit with a perihelion distance very close to 1 AU. In collaboration with S. Nakano (Sumoto, Japan), further observations were obtained in November by A. Sugie (Dynic Astronomical Observatory) and T. Seki (Geisei). 1992 UT R.A. (2000) Decl. Mag. Observer Oct. 25.48541 4 04 09.60 +36 16 18.6 17.2 Shoemaker 25.52152 4 04 06.49 +36 15 35.2 " 26.44166 4 03 02.60 +35 58 26.7 " 26.49305 4 02 58.19 +35 57 24.9 " Nov. 17.58125 3 38 52.61 +29 49 13.4 17.0 Sugie 17.59514 3 38 51.96 +29 49 02.5 " 18.56319 3 38 04.68 +29 35 14.3 " 18.57569 3 38 04.15 +29 35 06.4 " 23.46910 3 34 36.58 +28 29 15.9 17 Seki 23.48785 3 34 35.92 +28 29 07.0 " 25.50139 3 33 26.23 +28 04 01.2 17 " 25.51285 3 33 25.77 +28 03 54.4 " Nakano supplies elements based on 11 of the above positions: T = 1992 Sept. 8.852 TT Peri. = 37.814 e = 0.62836 Node = 308.684 2000.0 q = 1.00919 AU Incl. = 2.874 a = 2.71552 AU n = 0.220255 P = 4.47 years These elements indicate opposition in June 1992 (declination -29 degrees) and an approach to within 0.031 AU of the earth on Sept. 7.9 (declination +81 degrees). 1992/93 R. A. (2000) Decl. Delta r Elong. Phase V Nov. 24 3 34.27 +28 22.7 0.422 1.405 170.3 6.8 16.6 Dec. 4 3 30.35 +26 31.7 0.517 1.487 163.0 11.2 17.3 14 3 30.32 +25 10.8 0.628 1.571 153.4 16.3 18.0 24 3 33.70 +24 16.7 0.755 1.655 144.1 20.4 18.7 Jan. 3 3 39.97 +23 44.9 0.897 1.740 135.4 23.4 19.3 1992 November 27 (5662) Gareth V. Williams
Target Name: 1992 UY4 HMag: 17.5 Diameter: 1.0 Period: 13 ------------GOLDSTONE---------- -------------ARECIBO----------- Max Max Dat Run UTC Dat Run UTC Date RA Decl Delta Runs SNR SNR Window Runs SNR SNR Window 2005 7 28 308 -21 0.082 138 84 8 5:12-10:54 0 0 0 - 2005 7 29 311 -20 0.076 150 110 10 5:12-11:00 0 0 0 - 2005 7 30 313 -19 0.071 165 160 14 5:05-11:18 0 0 0 - 2005 7 31 316 -17 0.066 182 220 18 5:05-11:30 0 0 0 - 2005 8 1 319 -15 0.061 201 300 24 5:05-11:48 0 0 0 - 2005 8 2 323 -13 0.056 223 420 32 5:05-12:05 0 0 0 - 2005 8 3 327 -10 0.052 248 590 42 5:12-12:30 0 0 0 - 2005 8 4 332 -7 0.049 275 820 55 5:12-13:00 0 0 0 - 2005 8 5 337 -3 0.045 304 1100 71 5:17-13:30 0 0 0 - 2005 8 6 343 1 0.043 333 1400 87 5:24-14:00 50 9300 1500 5:47- 7:00 2005 8 7 349 5 0.041 360 1700 100 5:30-14:35 78 16000 2100 5:47- 7:42 2005 8 8 356 10 0.040 382 1900 110 5:42-15:18 95 20000 2200 5:54- 8:18 2005 8 9 4 15 0.041 397 1900 110 5:54-15:54 102 21000 2200 6:17- 8:54 2005 8 10 11 19 0.042 403 1800 97 6:12-16:30 102 19000 2000 6:35- 9:24 2005 8 11 18 23 0.043 401 1500 84 6:24-17:06 98 16000 1700 7:05- 9:41 2005 8 12 25 26 0.046 392 1200 69 6:42-17:36 90 13000 1400 7:30-10:05 2005 8 13 32 28 0.049 378 950 54 6:54-18:06 81 9400 1100 8:00-10:24 2005 8 14 37 30 0.053 361 730 42 7:12-18:30 72 6800 870 8:24-10:35 2005 8 15 43 32 0.057 343 550 33 7:24-18:48 63 4900 680 8:41-10:48 2005 8 16 47 33 0.061 324 410 25 7:35-19:06 56 3500 520 9:00-11:00 2005 8 17 51 34 0.066 306 310 20 7:42-19:18 50 2500 400 9:18-11:05 2005 8 18 55 34 0.070 289 240 15 7:54-19:30 45 1800 300 9:30-11:11 2005 8 19 58 34 0.075 273 180 12 8:00-19:41 41 1300 230 9:41-11:24 2005 8 20 61 35 0.080 259 140 10 8:05-19:48 37 970 180 9:48-11:24 2005 8 21 63 35 0.085 245 110 8 8:11-19:53 35 750 140 10:00-11:30 2005 8 22 65 35 0.091 232 87 6 8:18-20:00 32 580 110 10:00-11:35 2005 8 23 67 35 0.096 221 70 5 8:18-20:06 30 460 94 10:05-11:35 2005 8 24 69 35 0.101 210 56 4 8:24-20:11 29 370 77 10:11-11:41 Arecibo SNRs have been adjusted to reflect current transmitter power of about 500 kW.
1992 UY4 Goldstone tracks UT UT PDT Duration DOY Date TX Window TX Window AST TX Window (hh:mm) --- ---- --------- ------------- ------------- ------- 213 Aug 01 0530-0930 2230-0230 Jul 31-Aug 01 0130-0530 Aug 01 4:00 214 Aug 02 0735-1135 0035-0435 Aug 02 0335-0735 Aug 02 4:00 216 Aug 04 0620-1020 2320-0320 Aug 03-04 0220-0620 Aug 04 4:00 219 Aug 07 0945-1345 0245-0645 Aug 07 0545-0945 Aug 07 4:00 1992 UY4 Arecibo Tracks 218 Aug 06 0541-0711 2241-0011 Aug 05-06 0141-0311 Aug 06 1:30 219 Aug 07 0543-0755 2243-0055 Aug 06-07 0143-0355 Aug 07 2:12 220 Aug 08 0556-0831 2256-0131 Aug 07-08 0156-0431 Aug 08 2:35 221 Aug 09 0616-0903 2316-0203 Aug 08-09 0216-0503 Aug 09 2:47 222 Aug 10 0641-0930 2341-0230 Aug 09-10 0241-0530 Aug 10 2:49 2004 MN4 Arecibo Tracks 219 Aug 07 1544-1827 0844-1127 Aug 07 1144-1427 Aug 07 2:43 220 Aug 08 1536-1819 0836-1119 Aug 08 1136-1419 Aug 08 2:43 UTC Aug Aug Aug Aug Aug Aug Aug Aug Aug Aug PDT AST hhmm 01 02 03 04 05 06 07 08 09 10 hhmm hhmm 0500 2200 0100 0515 2215 0115 0530 G 2230 0130 0545 G A A 2245 0145 0600 G A A A 2300 0200 0615 G G A A A A 2315 0215 0630 G G A A A A 2330 0230 0645 G G A A A A A 2345 0245 0700 G G A A A A A 0000 0300 0715 G G A A A A A 0015 0315 0730 G G G A A A A 0030 0330 0745 G G G A A A A 0045 0345 0800 G G G A A A A 0100 0400 0815 G G G A A A 0115 0415 0830 G G G A A A 0130 0430 0845 G G G A A 0145 0445 0900 G G G A A 0200 0500 0915 G G G A 0215 0515 0930 G G G A 0230 0530 0945 G G G 0245 0545 1000 G G G 0300 0600 1015 G G G 0315 0615 1030 G G 0330 0630 1045 G G 0345 0645 1100 G G 0400 0700 1115 G G 0415 0715 1130 G G 0430 0730 1145 G 0445 0745 1200 G 0500 0800 1215 G 0515 0815 1230 G 0530 0830 1245 G 0545 0845 1300 G 0600 0900 1315 G 0615 0915 1330 G 0630 0930 1345 G 0645 0945 1400 0700 1000 1415 0715 1015 1430 0730 1030 1445 0745 1045 1500 0800 1100 1515 0815 1115 1530 MN4 0830 1130 ARECIBO 1545 MN4 MN4 0845 1145 ARECIBO 1600 MN4 MN4 0900 1200 ARECIBO 1615 MN4 MN4 0915 1215 ARECIBO 1630 MN4 MN4 0930 1230 ARECIBO 1645 MN4 MN4 0945 1245 ARECIBO 1700 MN4 MN4 1000 1300 ARECIBO 1715 MN4 MN4 1015 1315 ARECIBO 1730 MN4 MN4 1030 1330 ARECIBO 1745 MN4 MN4 1045 1345 ARECIBO 1800 MN4 MN4 1100 1400 ARECIBO 1815 MN4 MN4 1115 1415 ARECIBO 1830 MN4 1130 1430 ARECIBO 1845 1145 1445 1900 1200 1500 No radar observations are scheduled on August 3 and 5. Relative Rotation Phase Coverage Sky Motion
From Horizons: 2005 May 24, solution 9, # obs: 53 (1992-2005): Date__(UT)__HR:MN R.A._(a-appar)_DEC. delta POS_3sigma DOP_S-sig DOP_X-sig RT_delay-sig 2005-Aug-01 00:00 318.89435 -15.30271 0.0608899140 29.3931100 2.41 8.61 0.002324 2005-Aug-02 00:00 322.50220 -13.06167 0.0563586991 32.2979772 2.40 8.59 0.001887 2005-Aug-03 00:00 326.62064 -10.39018 0.0522020389 35.3683007 2.38 8.51 0.001436 2005-Aug-04 00:00 331.30942 -7.22766 0.0485040695 38.4121050 2.33 8.35 0.001152 2005-Aug-05 00:00 336.61452 -3.53846 0.0453649526 41.0961182 2.25 8.06 0.001393 2005-Aug-06 00:00 342.55210 0.65892 0.0428956577 42.9427665 2.13 7.64 0.002140 2005-Aug-07 00:00 349.08855 5.25984 0.0412053238 43.4181267 1.97 7.04 0.003127 2005-Aug-08 00:00 356.12264 10.05847 0.0403810759 42.1376368 1.76 6.28 0.004197 2005-Aug-09 00:00 3.48031 14.77441 0.0404658821 39.1004439 1.51 5.41 0.005240 2005-Aug-10 00:00 10.93171 19.12348 0.0414451093 34.7581243 1.25 4.48 0.006175 2005-Aug-11 00:00 18.23028 22.89714 0.0432499569 29.8236214 1.01 3.60 0.006957 2005-Aug-12 00:00 25.15917 26.00367 0.0457756856 24.9701504 0.79 2.83 0.007576 2005-Aug-13 00:00 31.56488 28.45714 0.0489043395 20.6389960 0.62 2.23 0.008046 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - From Horizons: 2005 July 6, solution 12, # obs: 63 (1992-2005): 2005-Aug-01 00:00 318.89143 -15.30341 0.0608905199 11.3228604 0.71 2.54 0.001709 2005-Aug-02 00:00 322.49905 -13.06250 0.0563591232 12.6391032 0.71 2.54 0.001529 2005-Aug-03 00:00 326.61725 -10.39115 0.0522022421 14.0826452 0.70 2.52 0.001317 2005-Aug-04 00:00 331.30579 -7.22876 0.0485040081 15.5917894 0.69 2.48 0.001081 2005-Aug-05 00:00 336.61068 -3.53966 0.0453645810 17.0436685 0.68 2.42 0.000858 2005-Aug-06 00:00 342.54811 0.65768 0.0428949344 18.2442014 0.65 2.32 0.000753 2005-Aug-07 00:00 349.08449 5.25865 0.0412042198 18.9531616 0.62 2.20 0.000894 2005-Aug-08 00:00 356.11863 10.05746 0.0403795842 18.9631208 0.57 2.06 0.001235 2005-Aug-09 00:00 3.47649 14.77368 0.0404640221 18.2057781 0.53 1.91 0.001649 2005-Aug-10 00:00 10.92819 19.12308 0.0414429239 16.8054136 0.49 1.77 0.002059 2005-Aug-11 00:00 18.22717 22.89707 0.0432475026 15.0236015 0.47 1.67 0.002426 2005-Aug-12 00:00 25.15652 26.00389 0.0457730207 13.1399511 0.45 1.60 0.002733 2005-Aug-13 00:00 31.56267 28.45757 0.0489015161 11.3607909 0.44 1.57 0.002980 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - From Jon Giorgini: 2005 July 25 With 115 usable optical observations (1992-Jul-21 to 2005-Jul-25), 1992 UY4 solution #25 was computed. X-band 3-sigma uncertainties are shown below. Date__(UT)__HR:MN POS_3sigma DOP_X-sig RT_delay-sig 2005-Aug-01 00:00 2.97313458 1.65 0.001055 2005-Aug-02 00:00 3.49655581 1.67 0.000997 2005-Aug-03 00:00 4.10700713 1.70 0.000923 2005-Aug-04 00:00 4.79534186 1.71 0.000830 2005-Aug-05 00:00 5.52888103 1.71 0.000716 2005-Aug-06 00:00 6.24160949 1.70 0.000583 2005-Aug-07 00:00 6.83504757 1.66 0.000442 2005-Aug-08 00:00 7.20191940 1.61 0.000330
CW Setup For the third track, we'll do a few CW runs, a few runs with 1 usec to update the range, and then 1/8 usec imaging. Let's use the same CW setup that we used on the first two tracks: TX polarization RCP RCV polarization LCP Frequencies: 2 Dwell: 20 seconds Bandwidth: 4000 Hz Sampling interval: 2500 x 0.1 usec VME FFT for PSD files: 8192 for 0.488-Hz resolution Possible ranging setups: --------------------------------------------------------------------------- 127 x 64 10-usec single sample baud 10 usec code 127 gates 127 FFT 64 CLT 11 ncoh 2 bandwidth 394 Hz resolution 6.15 Hz TXOFF +60 Hz -> echo will be centered at +9.75 bins or in bin 32+10 = 42 incoh sums 64 => 10.4 sec/record --------------------------------------------------------------------------- 127 x 64 11-usec single sample, 5.6-Hz resolution. baud 11 usec code 127 gates 127 PRP 1397 FFT 64 CLT 11 ncoh 2 bandwidth 357.9 Hz resolution 5.59 Hz TXOFF TBD ------------------------------------------------------------------------- 127 x 64 11-usec single sample, 11.2-Hz resolution baud 11 usec code 127 gates 127 PRP 1397 FFT 64 CLT 11 ncoh 1 bandwidth 715.8 Hz resolution 11.2 Hz TXOFF +60 -> echo would be centered at +5 bins w/perfect ephemeris ------------------------------------------------------------------------- 127 x 64 7-usec single sample ------------------------------ baud 7 usec code 127 gates 127 PRP 889 FFT 64 CLT 11 ncoh 1 bandwidth 1124.9 Hz resolution 17.6 Hz TXOFF +60 -> echo would be centered at +3.4 bins w/perfect ephemeris ------------------------------------------------------------------------- 127 x 64 1-usec single sample ------------------------------ baud 1 usec code 127 gates 127 PRP 127 FFT 64 CLT 13 & 14, about evenly divided ncoh 15 bandwidth 525 Hz resolution 8.2 Hz TXOFF +50 -> echo would be centered at +6.1 bins w/perfect ephemeris ------------------------------------------------------------------------------- 0.125-usec ranging setup used in first UY4 track (DOY 213, Aug. 1) ------------------ setup JX1XS001 revised baud 0.125 usec code 127 gates 127 FFT 64 ncoh 984 bandwidth 64.016384 Hz resolution 1.000256 Hz TXOFF We used 10 Hz, placing COM in cell 32+10=42 Henceforth use 15 Hz, to put COM in 32+15=47 incoh sums 4 looks=> 8 sec/record => expect records per run ~ RTT/8 PFS CLT gate 21 _____________________________________________________________________ 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 at Goldstone on stealth: /export/data2/osod/ops/1992 UY4/PRDX.OUT.s31 /PUNCH.OUT.s31 /EPH.OUT.s31 and have been copied to: /export/data0/rosema/1992UY4/support/ POINTING TX Offsets Date (UTC) DOY hhmmss RA Dec Macro LHA Dec RTT OSOD 2005 08 04 216 060000 332.5740 -6.3624 A 47.5 25 2005 08 04 216 070000 332.7807 -6.2144 A -0.0027 0.0019 47.4 2005 08 04 216 080000 332.9869 -6.0652 AB 47.2 2005 08 04 216 090000 333.1933 -5.9147 B -0.0027 0.0020 47.1 2005 08 04 216 100000 333.4006 -5.7630 BC 47.0 2005 08 04 216 110000 333.6097 -5.6101 C -0.0027 0.0020 46.8 2005 08 04 216 120000 333.8210 -5.4561 C 46.7 2005 08 07 219 080000 351.3839 6.8597 A 40.7 25 2005 08 07 219 090000 351.6634 7.0606 A -0.0032 0.0023 40.6 2005 08 07 219 100000 351.9426 7.2613 AB 40.6 2005 08 07 219 110000 352.2224 7.4618 B -0.0031 0.0022 40.6 2005 08 07 219 120000 352.5035 7.6620 BC 40.5 2005 08 07 219 130000 352.7869 7.8618 C -0.0032 0.0023 40.5 2005 08 07 219 140000 353.0731 8.0614 C 40.5
PRDX.OUT.s31 TRANSMITTER: STATION #14, RECEIVER: STATION #14 RECEIVER U.T. RANGE DOPPLER LHA DEC RA EL 2005 AUG 04 06:20 47.4729443795 339193.207 318.3841 -6.3134 332.643 32.804 2005 AUG 04 06:30 47.4492075105 338094.397 320.8565 -6.2887 332.677 34.380 2005 AUG 04 06:40 47.4255485669 336969.955 323.3289 -6.2640 332.712 35.905 2005 AUG 04 06:50 47.4019692986 335821.222 325.8013 -6.2393 332.746 37.372 2005 AUG 04 07:00 47.3784713588 334649.583 328.2738 -6.2145 332.780 38.776 2005 AUG 04 07:10 47.3550563057 333456.465 330.7462 -6.1897 332.815 40.113 2005 AUG 04 07:20 47.3317255925 332243.336 333.2187 -6.1649 332.849 41.376 2005 AUG 04 07:30 47.3084805693 331011.697 335.6912 -6.1401 332.884 42.560 2005 AUG 04 07:40 47.2853224798 329763.087 338.1637 -6.1152 332.918 43.658 2005 AUG 04 07:50 47.2622524579 328499.072 340.6362 -6.0903 332.952 44.663 2005 AUG 04 08:00 47.2392715298 327221.249 343.1086 -6.0653 332.987 45.569 2005 AUG 04 08:10 47.2163806043 325931.238 345.5811 -6.0403 333.021 46.371 2005 AUG 04 08:20 47.1935804796 324630.681 348.0536 -6.0153 333.055 47.061 2005 AUG 04 08:30 47.1708718367 323321.240 350.5260 -5.9902 333.090 47.635 2005 AUG 04 08:40 47.1482552396 322004.592 352.9985 -5.9651 333.124 48.088 2005 AUG 04 08:50 47.1257311343 320682.427 355.4709 -5.9400 333.159 48.415 2005 AUG 04 09:00 47.1032998482 319356.442 357.9433 -5.9148 333.193 48.614 2005 AUG 04 09:10 47.0809615880 318028.345 0.4157 -5.8896 333.228 48.683 2005 AUG 04 09:20 47.0587164443 316699.841 2.8880 -5.8644 333.262 48.620 2005 AUG 04 09:30 47.0365643833 315372.641 5.3603 -5.8391 333.297 48.428 2005 AUG 04 09:40 47.0145052551 314048.447 7.8326 -5.8138 333.331 48.107 2005 AUG 04 09:50 46.9925387895 312728.958 10.3048 -5.7885 333.366 47.661 2005 AUG 04 10:00 46.9706645960 311415.862 12.7770 -5.7631 333.400 47.093 2005 AUG 04 10:10 46.9488821705 310110.833 15.2492 -5.7377 333.435 46.409 2005 AUG 04 10:20 46.9271908866 308815.532 17.7213 -5.7123 333.470 45.615
GOLDSTONE MASTERLOG
============================================================================== RCV file setup runs start -stop osod OFFSET TX Poln ------------------------------------------------------------------------------ August 1 (DOY 213) CW 2 hops, 4 kHz, 20s dwell 10 053235-055132 25 none RCP VME & PFS 10 us, 127 2 4 061338-062034 25 +60 Hz RCP VME & PFS 11 us, 127 2 3 070352-070849 25 +60 Hz RCP VME & PFS 1/8 us 127 984 15 081408-084305 27 +10 Hz RCP VME & PFS 1 us, 127 15 10 091113-093010 27 +50 Hz RCP VME & PFS August 1 image: 08:14:08-08:43:05 UTC, 1/8 usec x 1.0 Hz ------------------------------------------------------------------------------ August 2 (DOY 214) CW 2 hops, 4 kHz, 20s dwell 5 073738-074550 29 none RCP VME & PFS 1 us, 127 15 4 080729-081350 29 +50 Hz RCP VME & PFS 1/8 us 127 984 100 083245-113503 29 +15 Hz RCP VME & PFS August 2 image: 08:32:46-09:31:26 UTC, 1/8 usec x 1.0 Hz August 2 image: 09:33:16-11:34:13 UTC, 1/8 usec x 1.0 Hz ------------------------------------------------------------------------------ August 4 (DOY 216) CW 2 hops, 4 kHz, 20s dwell 5 065145-065852 31 none RCP VME & PFS 1 us, 127 15 5 072113-072821 31 +50 Hz RCP VME & PFS 1/8 us 127 984 93 075134-101928 31 +15 Hz RCP VME & PFS ------------------------------------------------------------------------------ August 7 (DOY 219) ============================================================================== RADAR ASTROMETRY 2005 08 01 06:50:00 R 59.398242 20.0 8560.D6 -14 Ostro+ from 10- and 11-usec; correction to s25 is 152 usec 2005 08 01 09:20:00 R 58.918929 2.0 8560.D6 -14 Benner & Ostro Correction of -1 usec to soln 27 from 1.0 us and 1/8 usec imaging. Placed COM at TE of 1.0 us echo, which is about 5 gates deep. 2005 08 02 08:10:00 R 54.735401 2.0 8560.D6 -14 Benner & Ostro Correction of -3 usec to solution 29 from 4 1.0 us runs. Placed COM at TE of echo, which is about 7 gates deep. 2005 08 04 07:20:00 R 47.331721 2.0 8560.D6 -14 Benner, L.A.M. Correction of -5 usec to solution 31 from a wtd sum of five 1.0 usec runs. Placed COM at TE of echo, which is seven rows deep. ==============================================================================
Dr. Lance A. M. Benner | PHONE: (818) 354-7412 Mail Stop 300-233 | FAX: (818) 354-9476 Jet Propulsion Laboratory | email: lance@reason.jpl.nasa.gov Pasadena, CA 91109-8099 | Plan: To live long and prosper http://echo.jpl.nasa.gov/asteroids/1992UY4/goldstone/html/1992UY4_planning.html
Asteroid Radar Astronomy