MPEC 1995-A02 : 1989 OB
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M.P.E.C. 1995-A02 Issued 1995 Jan. 14, 19:48 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)
1989 OB
Recovered by R. H. McNaught at Siding Spring at a Delta-T of +0.02 days
from the prediction on MPC 22081.
Additional observations:
J89O00B C1995 01 12.71028 09 38 15.44 +09 14 48.4 413
J89O00B C1995 01 12.71469 09 38 15.18 +09 14 49.0 413
J89O00B FC1995 01 14.74083 09 36 23.76 +09 19 01.7 413
Observer details:
413 Siding Spring Observatory. Observers R. H. McNaught, G. J. Garradd,
D. I. Steel. Measurer R. H. McNaught. 1.0-m reflector + CCD.
Orbital elements:
1989 OB
Id. R. H. McNaught (1995 observations)
Epoch 1995 Mar. 24.0 TT = JDT 2449800.5 Williams
M 84.97150 (2000.0) P Q
n 0.22260959 Peri. 71.68038 +0.99115900 -0.02815432
a 2.6963327 Node 289.77127 -0.03159501 +0.89903087
e 0.5594518 Incl. 7.91940 +0.12886265 +0.43697921
P 4.43 H 16.0 G 0.15
Residuals in seconds of arc
890707 675 0.3+ 0.3- 890829 413 0.6+ 0.8+ 890928 657 0.4- 1.6-
890707 675 0.1+ 0.5- 890829 413 0.4+ 0.8+ 890929 801 0.9- 0.5-
890729 675 1.0- 0.3+ 890829 413 0.4+ 0.7+ 890929 675 0.7+ 0.7-
890729 675 (1.9+ 3.0+) 890830 091 (4.4- 2.2+) 890929 801 0.9- 0.2-
890731 675 (0.5- 3.7-) 890830 091 (3.3- 1.4-) 891001 801 1.3+ 1.4+
890731 675 0.4+ 1.5- 890830 091 (0.8+ 3.6+) 891003 026 0.7- 0.0
890801 801 1.7- 0.9- 890830 091 (1.5- 8.3-) 891023 568 1.6- 0.6-
890801 675 2.2- 0.8- 890901 675 0.6+ 0.5- 891023 568 1.4- 0.3+
890802 801 0.7+ 1.3+ 890903 675 0.4+ 1.5- 891024 568 0.6- 0.9+
890802 675 0.4- 0.3- 890904 091 (1.9+ 7.6+) 891025 801 1.1+ 0.4+
890803 413 0.5+ 0.3+ 890904 091 (3.5- 2.9-) 891026 801 0.8+ 0.0
890803 413 0.2- 0.3- 890906 657 0.4+ 0.7- 891028 801 0.7- 0.6-
890803 413 0.1+ 0.8+ 890906 657 1.3+ 0.1- 891028 801 0.2+ 0.6-
890805 657 1.4- 0.2- 890906 413 0.0 0.4- 891030 675 (0.5- 5.2-)
890805 657 1.4- 0.4+ 890906 413 0.3- 0.6+ 891101 675 1.2+ 2.3-
890809 657 0.2- 0.2- 890906 413 0.0 0.3+ 891103 675 0.4+ 1.6+
890809 657 0.7+ 1.1+ 890908 657 0.3+ 0.8- 891119 568 0.6+ 0.2+
890811 413 0.0 0.4+ 890921 413 0.2+ 0.1+ 891120 568 0.8- 0.5+
890811 413 0.0 0.7+ 890921 413 0.1+ 0.7+ 891122 675 (1.2+ 3.1-)
890825 413 0.5+ 0.2+ 890921 413 0.3+ 0.4+ 891125 801 0.5+ 0.4+
890825 413 0.3+ 0.0 890922 046 0.1- 0.3+ 891125 675 (0.0 5.0-)
890825 413 0.1+ 0.4+ 890922 046 1.1+ 0.1- 891202 801 0.8- 2.2+
890825 091 (3.2- 3.3-) 890922 046 1.5+ 1.3+ 891202 801 1.5- 1.4+
890825 091 (3.9- 0.6-) 890922 046 0.9+ 1.3+ 891229 801 0.3+ 0.1-
890826 293 (0.1+ 2.9+) 890923 657 1.6- 0.4- 891229 801 0.5+ 0.9-
890826 801 0.7- 1.0+ 890924 046 1.2- 2.2- 900125 688 1.1+ 0.3-
890826 657 0.2+ 0.1- 890924 046 1.5- 0.9- 900125 688 0.6+ 0.1-
890826 657 1.5+ 1.2+ 890925 801 0.1- 1.0+ 950112 413 0.0 0.4-
890827 801 2.4- 1.7+ 890927 675 0.9+ 1.4- 950112 413 0.2- 0.3-
890828 675 0.5+ 2.3- 890928 801 0.2+ 0.5+ 950114 413 0.4- 0.5-
890828 675 0.8+ 2.0- 890928 801 0.1+ 0.7+
890829 675 0.0 0.8+ 890928 657 0.6+ 1.4-
Ephemeris:
1989 OB a,e,i = 2.70, 0.56, 8 q = 1.1879
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1995 01 13 09 38.00 +09 15.3 2.098 2.981 148.4 10.0 20.6
1995 01 23 09 28.21 +09 40.3 2.086 3.032 160.6 6.2 20.5
1995 02 02 09 17.50 +10 12.7 2.103 3.082 172.1 2.5 20.3
1995 02 12 09 06.86 +10 48.4 2.152 3.131 171.1 2.8 20.4
1995 02 22 08 57.25 +11 23.3 2.232 3.179 159.8 6.2 20.7
1995 03 04 08 49.38 +11 54.4 2.341 3.225 148.0 9.4 21.0
1995 03 14 08 43.72 +12 19.3 2.475 3.271 136.7 12.0 21.3
1995 03 24 08 40.42 +12 37.1 2.629 3.315 126.0 14.1 21.5
1995 04 03 08 39.42 +12 47.4 2.798 3.358 115.9 15.5 21.7
1995 04 13 08 40.53 +12 50.1 2.978 3.399 106.4 16.4 21.9
1995 04 23 08 43.50 +12 45.6 3.163 3.440 97.4 16.8 22.1
Gareth V. Williams M.P.E.C. 1995-A02
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