MPEC 1995-D04 : 1991 OA
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M.P.E.C. 1995-D04 Issued 1995 Feb. 21, 20:44 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)
1991 OA
Observations:
J91O00A C1995 02 09.75689 12 51 18.42 -12 35 04.0 413
J91O00A C1995 02 09.75968 12 51 18.59 -12 35 06.1 413
J91O00A C1995 02 21.67678 13 01 58.99 -15 33 26.2 413
J91O00A C1995 02 21.67997 13 01 59.15 -15 33 30.2 413
Observer details:
413 Siding Spring Observatory. Observers R. H. McNaught, D. J. Asher,
G. J. Garradd. Measurer R. H. McNaught. 1.0-m reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees)
950209 413 0.55- 0.25+ 950221 413 0.70- 0.32+ MPC 21976
Orbital elements:
1991 OA
Id. R. H. McNaught (1995 observations)
Epoch 1995 Mar. 24.0 TT = JDT 2449800.5 Williams
M 340.77830 (2000.0) P Q
n 0.24812472 Peri. 317.22850 -0.10436285 +0.99153813
a 2.5081645 Node 306.63539 -0.88451224 -0.12802795
e 0.5876990 Incl. 5.52103 -0.45469384 +0.02147058
P 3.97 H 17.5 G 0.15 U 1
Residuals in seconds of arc
910318 413 0.1- 0.1+ 910815 657 0.3+ 0.4+ 910821 657 0.0 0.1-
910318 413 (2.9+ 2.9+) 910815 657 0.4+ 1.0+ 910821 657 0.0 0.2+
910716 675 0.6- 1.1- 910815 587 2.2+ 0.7- 910906 801 0.4+ 0.4+
910716 675 0.7+ 1.5+ 910816 657 0.8+ 0.8- 910906 801 0.1- 0.1-
910719 675 (0.5- 3.7+) 910816 657 0.0 1.2+ 910908 801 0.2+ 0.0
910805 675 0.8- 1.5- 910816 675 0.7- 0.0 910908 801 0.4+ 0.2-
910805 675 0.3- 0.9- 910816 675 1.0- 0.3- 910909 801 0.4+ 0.3-
910808 675 0.2- 0.7- 910816 589 (3.0+ 0.3+) 910909 801 0.1+ 0.4-
910808 675 0.3+ 0.1+ 910816 589 0.6+ 0.3+ 950209 413 0.6- 0.1-
910814 657 0.7+ 1.0+ 910816 589 1.3- 0.1- 950209 413 0.3- 0.1+
910814 657 0.1+ 0.2+ 910816 589 (0.4- 9.7+) 950221 413 0.1+ 0.1+
910814 675 0.2- 0.2+ 910818 480 0.2- 1.1- 950221 413 0.3+ 0.9-
910814 675 1.1- 0.0 910820 657 0.1+ 0.4-
910815 657 0.0 1.5+ 910820 657 0.3- 0.5+
Ephemeris:
1991 OA a,e,i = 2.51, 0.59, 6 q = 1.0341
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1995 02 12 12 53.45 -13 07.3 0.948 1.718 125.2 28.0 19.8
1995 02 17 12 58.01 -14 21.3 0.874 1.678 128.6 27.4 19.6
1995 02 22 13 02.24 -15 38.6 0.803 1.639 132.0 26.6 19.3
1995 02 27 13 06.10 -16 59.8 0.735 1.599 135.5 25.7 19.0
1995 03 04 13 09.54 -18 25.6 0.670 1.560 138.9 24.7 18.7
1995 03 09 13 12.54 -19 57.1 0.609 1.521 142.2 23.6 18.4
1995 03 14 13 15.10 -21 35.3 0.552 1.482 145.3 22.4 18.1
1995 03 19 13 17.21 -23 21.8 0.498 1.443 148.3 21.3 17.8
1995 03 24 13 18.86 -25 18.3 0.448 1.405 150.8 20.2 17.5
1995 03 29 13 20.05 -27 26.8 0.401 1.368 152.8 19.5 17.2
1995 04 03 13 20.85 -29 49.9 0.358 1.331 154.0 19.2 16.9
1995 04 08 13 21.39 -32 31.0 0.319 1.295 154.2 19.7 16.6
1995 04 13 13 21.87 -35 35.0 0.282 1.261 153.2 21.0 16.3
1995 04 18 13 22.60 -39 08.0 0.249 1.228 151.1 23.2 16.0
1995 04 23 13 24.02 -43 18.2 0.219 1.196 148.0 26.4 15.8
1995 04 28 13 26.93 -48 16.3 0.191 1.167 144.0 30.5 15.6
1995 05 03 13 33.02 -54 16.1 0.167 1.140 139.2 35.3 15.3
1995 05 08 13 46.28 -61 33.5 0.146 1.115 133.6 41.0 15.2
1995 05 13 14 19.3 -70 15.4 0.128 1.093 127.2 47.4 15.0
1995 05 18 16 12.8 -79 08.3 0.115 1.074 120.1 54.5 15.0
1995 05 23 21 04.8 -78 32.6 0.108 1.058 112.6 62.0 15.0
1995 05 28 22 59.67 -66 52.2 0.106 1.047 105.6 68.9 15.1
1995 06 02 23 33.95 -53 53.1 0.110 1.039 99.9 74.1 15.4
1995 06 07 23 48.85 -42 09.7 0.118 1.035 96.3 77.1 15.6
1995 06 12 23 56.77 -32 22.7 0.131 1.035 94.8 77.9 15.9
1995 06 17 00 01.45 -24 28.9 0.146 1.039 95.0 77.0 16.1
1995 06 22 00 04.22 -18 09.9 0.162 1.047 96.4 74.8 16.3
1995 06 27 00 05.57 -13 05.5 0.179 1.059 98.8 71.6 16.4
1995 07 02 00 05.71 -08 59.2 0.195 1.074 101.9 67.9 16.5
1995 07 07 00 04.74 -05 38.4 0.212 1.093 105.6 63.6 16.6
1995 07 12 00 02.68 -02 54.4 0.229 1.115 109.8 59.1 16.7
1995 07 17 23 59.53 -00 41.0 0.245 1.140 114.4 54.3 16.7
1995 07 22 23 55.26 +01 05.9 0.262 1.167 119.4 49.3 16.8
1995 07 27 23 49.89 +02 29.2 0.278 1.197 124.9 44.1 16.8
1995 08 01 23 43.50 +03 31.1 0.296 1.228 130.6 38.9 16.9
1995 08 06 23 36.31 +04 13.8 0.314 1.261 136.5 33.6 16.9
1995 08 11 23 28.56 +04 39.1 0.335 1.296 142.7 28.3 16.9
1995 08 16 23 20.52 +04 49.2 0.357 1.332 148.9 23.2 17.0
1995 08 21 23 12.49 +04 46.3 0.383 1.368 155.0 18.2 17.0
1995 08 26 23 04.75 +04 33.0 0.411 1.406 160.8 13.7 17.1
1995 08 31 22 57.60 +04 12.0 0.444 1.444 165.8 9.9 17.2
1995 09 05 22 51.28 +03 46.2 0.480 1.482 169.2 7.3 17.3
1995 09 10 22 45.93 +03 17.9 0.520 1.521 169.3 7.0 17.5
1995 09 15 22 41.63 +02 49.2 0.565 1.560 166.5 8.6 17.8
1995 09 20 22 38.38 +02 21.7 0.614 1.600 162.3 11.0 18.1
1995 09 25 22 36.19 +01 56.4 0.667 1.639 157.6 13.5 18.5
1995 09 30 22 35.03 +01 34.5 0.724 1.679 152.9 15.8 18.8
1995 10 05 22 34.82 +01 16.5 0.785 1.718 148.2 17.9 19.1
1995 10 10 22 35.49 +01 02.6 0.851 1.757 143.6 19.7 19.4
1995 10 15 22 36.93 +00 52.9 0.920 1.796 139.1 21.3 19.6
1995 10 20 22 39.07 +00 47.4 0.992 1.835 134.8 22.7 19.9
1995 10 25 22 41.85 +00 45.9 1.068 1.874 130.6 23.8 20.1
1995 10 30 22 45.18 +00 48.5 1.147 1.912 126.5 24.7 20.4
1995 11 04 22 49.02 +00 54.8 1.229 1.951 122.5 25.4 20.6
1995 11 09 22 53.28 +01 04.6 1.314 1.988 118.6 25.9 20.8
1995 11 14 22 57.91 +01 17.6 1.401 2.026 114.8 26.3 21.0
1995 11 19 23 02.87 +01 33.7 1.490 2.063 111.1 26.6 21.1
1995 11 24 23 08.13 +01 52.6 1.581 2.100 107.4 26.7 21.3
1995 11 29 23 13.64 +02 14.2 1.674 2.136 103.8 26.6 21.5
1995 12 04 23 19.38 +02 38.1 1.769 2.172 100.2 26.5 21.6
1995 12 09 23 25.31 +03 04.2 1.864 2.208 96.7 26.3 21.8
Gareth V. Williams M.P.E.C. 1995-D04
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