MPEC 1998-A13 : 1997 YL11
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M.P.E.C. 1998-A13 Issued 1998 Jan. 9, 16:06 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 YL11
Revision to MPEC 1998-A01
Observations:
J97Y11L C1997 12 31.35624 09 06 02.17 +30 03 47.0 658
J97Y11L C1997 12 31.37644 09 06 02.63 +30 03 54.3 658
J97Y11L C1998 01 01.04071 09 06 20.93 +30 07 43.3 18.6 V 966
J97Y11L C1998 01 01.06866 09 06 21.53 +30 07 54.7 966
J97Y11L C1998 01 04.61553 09 07 39.63 +30 28 42.1 17.9 V 897
J97Y11L C1998 01 04.62126 09 07 39.78 +30 28 45.2 897
J97Y11L C1998 01 04.63657 09 07 39.82 +30 28 50.4 897
J97Y11L C1998 01 04.64347 09 07 39.92 +30 28 53.2 897
J97Y11L C1998 01 08.34913 09 08 26.99 +30 50 20.8 658
J97Y11L C1998 01 08.35394 09 08 27.04 +30 50 22.6 658
J97Y11L C1998 01 08.35971 09 08 27.05 +30 50 24.6 658
J97Y11L C1998 01 09.34053 09 08 33.94 +30 55 59.2 658
J97Y11L C1998 01 09.34799 09 08 33.93 +30 56 02.0 658
J97Y11L C1998 01 09.35597 09 08 33.93 +30 56 04.7 658
Observer details:
658 Dominion Astrophysical Observatory. Observers D. D. Balam, S. Banh.
1.82-m reflector + CCD.
897 Chiyoda. Observer T. Kojima. 0.25-m f/6.0 reflector + CCD.
966 Church Stretton. Observer S. P. Laurie. 0.25-m Schmidt-Cassegrain + CCD.
Orbital elements:
1997 YL11
Epoch 1997 Dec. 18.0 TT = JDT 2450800.5 Williams
M 350.79576 (2000.0) P Q
n 0.22616417 Peri. 91.41571 -0.61484001 -0.78660014
a 2.6680063 Node 36.72159 +0.68049071 -0.56557248
e 0.4205068 Incl. 5.45588 +0.39862783 -0.24776600
P 4.36 H 17.5 G 0.15
From 26 observations 1997 Dec. 29-1998 Jan. 9.
Ephemeris:
1997 YL11 a,e,i = 2.67, 0.42, 5 q = 1.5461
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1998 01 07 09 08.22 +30 42.6 0.617 1.557 152.7 16.8 18.3
1998 01 12 09 08.67 +31 10.8 0.600 1.552 156.7 14.5 18.2
1998 01 17 09 08.18 +31 36.4 0.587 1.549 160.4 12.3 18.0
1998 01 22 09 06.87 +31 57.4 0.578 1.547 163.3 10.5 17.9
1998 01 27 09 04.96 +32 12.1 0.574 1.546 165.0 9.5 17.9
1998 02 01 09 02.71 +32 18.9 0.574 1.547 164.9 9.6 17.9
1998 02 06 09 00.43 +32 16.6 0.578 1.548 163.0 10.7 17.9
1998 02 11 08 58.42 +32 04.9 0.587 1.551 159.9 12.6 18.0
1998 02 16 08 56.91 +31 43.9 0.600 1.556 156.2 14.8 18.2
1998 02 21 08 56.09 +31 14.2 0.617 1.561 152.3 17.1 18.3
1998 02 26 08 56.11 +30 36.4 0.637 1.568 148.2 19.4 18.5
1998 03 03 08 57.08 +29 51.6 0.662 1.576 144.2 21.6 18.6
1998 03 08 08 59.02 +29 01.0 0.690 1.585 140.3 23.6 18.8
1998 03 13 09 01.89 +28 05.6 0.721 1.596 136.5 25.4 19.0
1998 03 18 09 05.64 +27 06.3 0.755 1.607 132.9 27.0 19.1
1998 03 23 09 10.18 +26 03.8 0.792 1.620 129.4 28.4 19.3
1998 03 28 09 15.44 +24 58.9 0.833 1.633 126.0 29.6 19.5
1998 04 02 09 21.33 +23 51.9 0.875 1.648 122.9 30.6 19.6
1998 04 07 09 27.77 +22 43.3 0.921 1.663 119.8 31.5 19.8
1998 04 12 09 34.68 +21 33.5 0.968 1.679 116.9 32.2 19.9
1998 04 17 09 41.96 +20 22.7 1.018 1.696 114.0 32.7 20.1
1998 04 22 09 49.55 +19 11.1 1.071 1.714 111.3 33.1 20.2
1998 04 27 09 57.41 +17 59.0 1.125 1.732 108.6 33.4 20.3
1998 05 02 10 05.49 +16 46.4 1.181 1.751 106.0 33.6 20.5
1998 05 07 10 13.75 +15 33.5 1.240 1.771 103.5 33.6 20.6
1998 05 12 10 22.13 +14 20.5 1.300 1.792 101.0 33.6 20.7
1998 05 17 10 30.61 +13 07.4 1.362 1.812 98.5 33.5 20.9
1998 05 22 10 39.17 +11 54.4 1.425 1.834 96.1 33.3 21.0
1998 05 27 10 47.78 +10 41.5 1.490 1.855 93.7 33.0 21.1
Gareth V. Williams (C) Copyright 1998 MPC M.P.E.C. 1998-A13
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Enter an MPEC number in one of the following forms:
- 1997-B01 (the full form)
- J97B01 (the packed version of the full form)
- B01 (the abbreviated form)