MPEC 1998-P03 : 1997 RX9
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M.P.E.C. 1998-P03 Issued 1998 Aug. 1, 02:41 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.
BMARSDEN@CFA.HARVARD.EDU or GWILLIAMS@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html
1997 RX9
Revision to MPEC 1997-S09
Observations:
J97R09X C1998 06 29.49523 23 09 33.10 -05 58 22.0 568
J97R09X C1998 06 29.57919 23 09 33.03 -05 58 22.8 568
J97R09X C1998 06 30.54541 23 09 32.01 -05 58 37.0 568
Observer details:
568 Mauna Kea. Observers D. Jewitt and C. Trujillo. 2.2-m University of
Hawaii reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc and reference
980629 568 40.2- 5.0- 980630 568 40.2- 4.9- MPC 30791
Orbital elements:
1997 RX9
Eccentricity assumed
Epoch 1998 July 6.0 TT = JDT 2451000.5 Marsden
M 247.18367 (2000.0) P Q
n 0.00366973 Peri. 297.18719 -0.22516116 -0.96442992
a 41.6274969 Node 163.89485 +0.97231827 -0.21330735
e 0.0318714 Incl. 29.94801 -0.06244706 +0.15612464
P 269 H 8.0 G 0.15
Residuals in seconds of arc
970907 675 0.1- 0.8+ 971005 675 0.2+ 0.1- 980629 568 0.2- 0.1-
970907 675 0.1- 0.8+ 971005 675 0.1+ 0.4- 980629 568 0.1+ 0.3+
970908 675 0.5- 0.5+ 971006 675 0.4+ 0.9- 980630 568 0.0 0.0
970908 675 0.4- 0.3+ 971006 675 0.3+ 0.8-
971005 675 0.0 0.4+ 971006 675 0.3+ 1.0-
Ephemeris:
1997 RX9 a,e,i = 41.63, 0.03, 30 q = 40.301
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1998 07 26 23 08.66 -06 07.4 41.427 42.176 137.0 0.9 24.4
1998 08 05 23 08.12 -06 12.1 41.323 42.175 146.8 0.8 24.3
1998 08 15 23 07.50 -06 17.2 41.243 42.174 156.5 0.5 24.3
1998 08 25 23 06.81 -06 22.8 41.190 42.173 166.3 0.3 24.3
1998 09 04 23 06.09 -06 28.5 41.166 42.173 176.2 0.1 24.2
1998 09 14 23 05.35 -06 34.3 41.172 42.172 173.8 0.1 24.2
1998 09 24 23 04.63 -06 39.9 41.206 42.171 163.9 0.4 24.3
1998 10 04 23 03.96 -06 45.3 41.270 42.170 153.9 0.6 24.3
1998 10 14 23 03.35 -06 50.1 41.360 42.170 143.8 0.8 24.3
1998 10 24 23 02.83 -06 54.4 41.474 42.169 133.8 1.0 24.4
1998 11 03 23 02.43 -06 57.9 41.610 42.168 123.7 1.1 24.4
1998 11 13 23 02.16 -07 00.6 41.762 42.167 113.6 1.2 24.4
1998 11 23 23 02.02 -07 02.4 41.926 42.166 103.4 1.3 24.4
1998 12 03 23 02.04 -07 03.2 42.097 42.166 93.3 1.3 24.4
1998 12 13 23 02.21 -07 03.1 42.270 42.165 83.2 1.3 24.4
1998 12 23 23 02.54 -07 02.1 42.439 42.164 73.1 1.3 24.4
1999 01 02 23 03.00 -07 00.1 42.600 42.163 63.0 1.2 24.4
Brian G. Marsden (C) Copyright 1998 MPC M.P.E.C. 1998-P03
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- 1997-B01 (the full form)
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- B01 (the abbreviated form)