MPEC 1999-D20: 1997 AP10 = 1999 CE9
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M.P.E.C. 1999-D20 Issued 1999 Feb. 26, 16:07 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 ISSN 1523-6714
1997 AP10 = 1999 CE9
Revision to MPEC 1997-A02 and 1999-C34
Observations:
J99C09E C1999 02 25.50068 08 49 48.17 +09 38 08.6 17.7 V 402
J99C09E C1999 02 25.50194 08 49 47.89 +09 38 09.8 402
J99C09E C1999 02 25.50321 08 49 47.69 +09 38 09.7 402
Observer details:
402 Dynic Astronomical Observatory. Observer A. Sugie. 0.60-m f/3.7 reflector
+ CCD.
Orbital elements:
1997 AP10 = 1999 CE9
Epoch 1999 Jan. 22.0 TT = JDT 2451200.5 Nakano
M 265.83917 (2000.0) P Q
n 0.56859529 Peri. 356.00516 +0.33036121 +0.93783835
a 1.4430029 Node 293.25940 -0.86272868 +0.25431831
e 0.6432002 Incl. 6.65041 -0.38283247 +0.23618091
P 1.73 H 16.7 G 0.15 U 6
Residuals in seconds of arc
970109 691 0.3- 0.3- 970126 658 0.1- 1.2+ 990215 422 0.6- 0.0
970109 691 0.1- 0.2- 970126 658 1.3+ 1.3+ 990215 422 1.1- 0.3+
970109 691 0.0 0.1+ 990212 704 0.7+ 0.6+ 990215 046 0.8+ 0.2-
970110 691 0.6- 0.1+ 990212 704 0.6+ 0.5- 990215 046 0.8- 0.8+
970110 691 0.8- 0.1+ 990212 704 0.6+ 1.5+ 990215 046 0.1- 0.2+
970110 691 0.5- 0.1- 990212 704 1.3- 1.7- 990215 046 0.6+ 0.1+
970111 691 0.9- 0.1- 990212 704 0.4- 0.0 990215 557 0.1- 0.2-
970111 691 0.5- 0.4+ 990213 704 1.9+ 0.3+ 990215 557 0.7- 0.2-
970111 691 0.8- 0.5+ 990213 704 1.4+ 0.3- 990215 557 0.8- 0.4-
970114 658 0.8+ 0.1+ 990213 704 1.1+ 2.0+ 990216 704 1.6+ 0.0
970114 658 1.6+ 0.3+ 990213 704 0.4+ 1.6- 990216 704 0.7- 0.7+
970114 658 1.1+ 0.1+ 990213 422 0.3+ 0.3+ 990216 704 (2.2+ 1.2+)
970114 599 1.5+ 1.3- 990213 422 0.4+ 0.0 990216 704 0.9+ 1.7-
970114 599 1.6- 1.4- 990213 422 0.4+ 0.6+ 990216 704 0.3- 0.3-
970114 599 1.4- 1.1- 990213 422 0.5+ 0.0 990216 426 0.2- 0.1-
970115 658 0.9+ 0.3- 990214 658 0.1- 0.0 990216 426 0.2- 0.0
970115 658 0.3+ 0.1+ 990214 658 0.4+ 0.3- 990216 426 0.5+ 0.3-
970115 658 0.3- 0.0 990214 658 0.1- 0.4- 990218 587 1.8- 0.6-
970115 599 (1.3+ 2.5-) 990214 422 0.2- 0.2+ 990218 587 0.4- 0.5+
970115 599 0.5+ 0.5- 990214 422 0.1- 0.1+ 990218 587 1.1- 1.3+
970116 599 1.6+ 0.1+ 990214 422 0.9- 0.3+ 990219 402 0.2- 0.5+
970116 599 0.0 0.9+ 990214 422 0.8- 0.4+ 990219 402 0.4- 0.3+
970116 587 0.3+ 1.0- 990215 658 0.5- 0.3- 990219 402 0.6- 0.2+
970116 587 0.1+ 0.0 990215 658 0.6- 0.4- 990225 402 1.6+ 0.6-
970117 599 1.5- 0.1+ 990215 658 0.3- 0.7- 990225 402 0.3+ 0.0
970117 599 0.6- 1.1+ 990215 422 0.1+ 0.3+ 990225 402 0.3+ 0.6-
Ephemeris:
1997 AP10 a,e,i = 1.44, 0.64, 7 q = 0.5149
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1999 02 21 09 01.26 +09 05.4 0.816 1.782 161.6 10.1 18.2
1999 02 26 08 48.54 +09 41.9 0.803 1.747 153.8 14.5 18.2
1999 03 03 08 36.26 +10 17.6 0.796 1.710 145.9 18.9 18.3
1999 03 08 08 24.81 +10 51.4 0.796 1.672 138.2 23.3 18.4
1999 03 13 08 14.52 +11 22.2 0.800 1.633 130.8 27.4 18.5
1999 03 18 08 05.62 +11 49.6 0.808 1.592 123.7 31.3 18.6
1999 03 23 07 58.25 +12 13.3 0.820 1.551 116.9 35.0 18.7
1999 03 28 07 52.44 +12 33.1 0.832 1.507 110.6 38.3 18.7
1999 04 02 07 48.15 +12 49.3 0.845 1.463 104.6 41.4 18.8
1999 04 07 07 45.29 +13 01.9 0.857 1.416 99.0 44.3 18.8
1999 04 12 07 43.77 +13 11.3 0.869 1.369 93.8 46.9 18.9
1999 04 17 07 43.46 +13 17.5 0.878 1.320 88.8 49.5 18.9
1999 04 22 07 44.24 +13 20.8 0.884 1.269 84.2 52.0 18.9
1999 04 27 07 45.97 +13 21.3 0.886 1.217 79.7 54.5 18.9
1999 05 02 07 48.50 +13 19.2 0.884 1.163 75.5 57.0 18.8
1999 05 07 07 51.69 +13 15.0 0.878 1.108 71.5 59.7 18.8
1999 05 12 07 55.39 +13 09.0 0.867 1.051 67.6 62.7 18.7
1999 05 17 07 59.41 +13 01.8 0.850 0.993 63.8 66.0 18.7
1999 05 22 08 03.52 +12 54.5 0.827 0.934 60.1 69.9 18.6
1999 05 27 08 07.41 +12 48.5 0.797 0.874 56.2 74.4 18.5
1999 06 01 08 10.63 +12 46.2 0.762 0.814 52.3 80.0 18.5
1999 06 06 08 12.54 +12 51.6 0.720 0.755 48.0 86.9 18.4
1999 06 11 08 12.17 +13 10.4 0.673 0.697 43.1 95.7 18.5
1999 07 31 05 39.24 +28 35.6 0.780 0.683 42.2 87.6 18.4
1999 08 10 05 51.22 +29 19.4 0.889 0.800 49.2 73.6 18.5
1999 08 20 06 07.22 +29 43.3 0.970 0.920 55.2 64.7 18.7
1999 08 30 06 23.34 +29 54.6 1.024 1.037 61.3 58.7 18.9
1999 09 09 06 37.85 +29 59.2 1.052 1.150 67.8 54.2 19.1
1999 09 19 06 49.72 +30 01.9 1.059 1.256 74.9 50.6 19.2
1999 09 29 06 58.22 +30 06.8 1.049 1.357 82.8 47.1 19.2
1999 10 09 07 02.59 +30 17.4 1.024 1.451 91.7 43.5 19.2
1999 10 19 07 01.90 +30 35.5 0.990 1.540 101.7 39.3 19.2
1999 10 29 06 55.24 +31 00.3 0.953 1.623 113.0 34.3 19.1
1999 11 08 06 41.84 +31 26.5 0.920 1.701 125.7 28.2 18.9
1999 11 18 06 21.62 +31 43.1 0.899 1.773 139.8 21.1 18.7
1999 11 28 05 56.14 +31 36.1 0.899 1.841 154.9 13.2 18.6
1999 12 08 05 28.61 +30 56.4 0.927 1.904 169.1 5.6 18.4
1999 12 18 05 03.10 +29 47.9 0.987 1.962 169.4 5.3 18.6
1999 12 28 04 42.66 +28 26.3 1.076 2.016 156.4 11.3 19.1
2000 01 07 04 28.47 +27 07.6 1.192 2.066 143.3 16.5 19.5
2000 01 17 04 20.35 +26 02.1 1.328 2.112 131.4 20.5 20.0
2000 01 27 04 17.43 +25 13.3 1.480 2.153 120.5 23.2 20.3
2000 02 06 04 18.69 +24 40.3 1.641 2.191 110.6 24.9 20.6
2000 02 16 04 23.28 +24 20.5 1.808 2.225 101.4 25.8 20.9
Gareth V. Williams (C) Copyright 1999 MPC M.P.E.C. 1999-D20
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