1992 UY4 Planning
Background
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
Discovery
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
SNR Calculation
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.
Goldstone Track Assignments
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
Uncertainties
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
Setups
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
____________________________________________________________________
Instructions
NOTE: Data should be moved to the appropriate subdirectories in
stealth:/export/data0/rosema/1992 UY4/raw/
1992 UY4 POINTING:
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