MPEC 1993-V01 : 1980 RG1
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M.P.E.C. 1993-V01 Issued 1993 Nov. 4, 13:58 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.
MARSDEN@CFA or WILLIAMS@CFA (.HARVARD.EDU, .SPAN or .BITNET)
1980 RG1
Tentatively identified on a single night in astrometry from Spacewatch by
G. V. Williams, the recovery of this object was confirmed in collaboration
with S. Nakano, Sumoto.
Additional observations:
J80R01G C1993 10 09.45591 02 47 50.19 +22 49 35.7 16.9 V 691
J80R01G C1993 10 09.47599 02 47 49.87 +22 49 26.6 691
J80R01G C1993 10 09.49573 02 47 49.55 +22 49 17.5 691
J80R01G C1993 11 03.46684 02 35 06.54 +18 46 49.5 16.4 V 385
J80R01G C1993 11 03.47050 02 35 06.42 +18 46 47.0 385
J80R01G C1993 11 03.47500 02 35 06.25 +18 46 44.3 385
J80R01G C1993 11 03.49965 02 35 05.31 +18 46 29.2 16.6 V 360
J80R01G C1993 11 03.50347 02 35 05.16 +18 46 26.8 360
J80R01G C1993 11 03.50764 02 35 05.00 +18 46 24.3 360
Observer details:
360 Kuma Kogen. Observer A. Nakamura. 0.60-m f/6.0 Ritchey-Chretien + CCD.
385 Nihondaira Observatory. Observer T. Urata. 0.31-m f/4.7 reflector + CCD.
691 Steward Observatory, Kitt Peak. Observers J. V. Scotti, R. Jedicke,
T. Gehrels. 0.91-m Spacewatch telescope + CCD.
Orbital elements:
1980 RG1
Epoch 1994 Feb. 17.0 TT = JDT 2449400.5 Williams
M 42.52028 (2000.0) P Q
n 0.22903377 Peri. 110.31208 +0.97875505 +0.19404679
a 2.6456742 Node 238.55105 -0.20481460 +0.91042065
e 0.4709185 Incl. 4.45155 -0.00946174 +0.36534927
P 4.30 H 16.0 G 0.15
Residuals in seconds of arc
800913 675 0.1- 0.1- 801102 675 1.5- 0.6+ 931103 385 0.1- 0.2-
800914 675 0.1+ 0.0 801129 675 0.2- 0.0 931103 385 0.2+ 0.4-
801014 675 0.5+ 1.3- 801129 675 0.2- 1.2+ 931103 385 0.3+ 0.3-
801014 675 0.3- 0.8+ 801201 675 (4.5- 1.1-) 931103 360 0.0 0.3-
801031 675 1.7+ 0.5- 931009 691 0.2- 0.2+ 931103 360 0.0 0.3-
801031 675 1.5- 1.1+ 931009 691 0.0 0.1+ 931103 360 0.1+ 0.2-
801102 675 0.9+ 0.2- 931009 691 0.0 0.0
Ephemeris:
1980 RG1 a,e,i = 2.65, 0.47, 4
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1993 10 30 02 37.86 +19 34.7 0.592 1.582 172.4 4.8 16.3
1993 11 09 02 31.97 +17 49.8 0.639 1.627 174.0 3.7 16.4
1993 11 19 02 27.90 +16 19.4 0.705 1.675 163.1 9.9 17.0
1993 11 29 02 26.73 +15 13.3 0.790 1.725 152.4 15.3 17.5
1993 12 09 02 28.70 +14 34.0 0.892 1.778 142.5 19.7 18.0
1993 12 19 02 33.63 +14 19.8 1.010 1.832 133.4 23.0 18.4
1993 12 29 02 41.18 +14 26.4 1.142 1.887 125.0 25.3 18.8
1994 01 08 02 50.86 +14 48.5 1.285 1.942 117.2 26.8 19.2
1994 01 18 03 02.30 +15 21.8 1.438 1.998 109.8 27.6 19.5
1994 01 28 03 15.17 +16 01.9 1.599 2.055 102.8 27.9 19.8
1994 02 07 03 29.17 +16 45.6 1.766 2.111 96.1 27.7 20.1
1994 02 17 03 44.08 +17 30.1 1.936 2.168 89.6 27.1 20.3
1994 02 27 03 59.72 +18 13.2 2.109 2.224 83.3 26.3 20.5
(Last issue was M.P.E.C. 1993-U11)
Gareth V. Williams M.P.E.C. 1993-V01
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