MPEC 2001-D35 : 1999 DA
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M.P.E.C. 2001-D35 Issued 2001 Feb. 24, 16:30 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.
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
1999 DA
Revision to MPEC 1999-D06
Observations:
J99D00A C2000 03 30.26309 09 34 32.69 +17 24 02.9 568
J99D00A C2000 03 30.27631 09 34 32.66 +17 24 03.1 568
J99D00A C2000 03 30.28290 09 34 32.67 +17 24 03.3 568
J99D00A C2000 03 30.29589 09 34 32.64 +17 24 03.3 568
J99D00A C2000 03 30.31016 09 34 32.59 +17 24 03.4 568
J99D00A C2000 03 30.31661 09 34 32.55 +17 24 03.8 568
J99D00A C2000 03 30.32306 09 34 32.54 +17 24 03.7 568
J99D00A C2000 03 30.32958 09 34 32.52 +17 24 03.7 24.3 R 568
J99D00A C2000 03 30.33607 09 34 32.50 +17 24 03.7 24.1 R 568
J99D00A C2001 02 23.16458 09 41 11.76 +16 52 45.5 24.1 R 309
J99D00A C2001 02 23.17162 09 41 11.72 +16 52 45.9 23.9 R 309
J99D00A C2001 02 24.13751 09 41 07.49 +16 53 06.0 309
J99D00A C2001 02 24.21656 09 41 07.14 +16 53 07.6 309
Observer details:
309 Cerro Paranal. Observer B. Gladman. ESO VLT UT-1 8-m reflector + CCD.
568 Mauna Kea. Observers B. Gladman, J. Kavelaars, M. Holman, J.-M. Petit.
3.6-m Canada-France-Hawaii Telescope + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc and reference
000330 568 13.0+ 7.6- 010224 309 35.2+ 16.0- MPC 36541
Orbital elements:
1999 DA
Epoch 2001 Apr. 1.0 TT = JDT 2452000.5 Marsden
M 200.68453 (2000.0) P Q
n 0.00344356 Peri. 250.42680 +0.56168259 +0.82641955
a 43.4307643 Node 53.80789 -0.73966954 +0.52286292
e 0.0685307 Incl. 2.79021 -0.37067726 +0.20891408
P 286 H 7.9 G 0.15 U 5
Residuals in seconds of arc
990216 568 0.2- 0.1+ 990217 568 0.4+ 0.1- 000330 568 0.1+ 0.4-
990216 568 0.1+ 0.2- 990217 568 0.2+ 0.3+ 000330 568 0.2+ 0.5-
990216 568 0.2- 0.2+ 990323 568 0.3+ 0.0 000330 568 0.0 0.6-
990216 568 0.1+ 0.2- 990323 568 0.1+ 0.1+ 000330 568 0.3- 0.2-
990216 568 0.2- 0.1- 990323 568 0.1+ 0.1+ 000330 568 0.2- 0.4-
990216 568 0.3- 0.2+ 990323 568 0.4+ 0.1+ 000330 568 0.2- 0.5-
990216 568 0.0 0.1- 990323 568 0.3+ 0.1+ 000330 568 0.2- 0.5-
990216 568 0.2- 0.2+ 990509 807 0.3+ 0.6+ 010223 309 0.3+ 0.4+
990216 568 0.1- 0.1- 990510 807 0.7- 0.8+ 010223 309 0.2+ 0.7+
990217 568 0.3+ 0.2+ 000330 568 0.4- 0.6- 010224 309 0.1+ 0.6+
990217 568 0.2- 0.1- 000330 568 0.3- 0.5- 010224 309 0.1+ 0.5+
Ephemeris:
1999 DA a,e,i = 43.43, 0.07, 3 q = 40.454
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2001 02 20 09 41.43 +16 51.6 45.266 46.241 170.2 0.2 24.6
2001 03 02 09 40.70 +16 55.1 45.306 46.240 160.2 0.4 24.6
2001 03 12 09 40.03 +16 58.1 45.376 46.240 150.1 0.6 24.6
2001 03 22 09 39.43 +17 00.7 45.471 46.239 140.0 0.8 24.6
2001 04 01 09 38.92 +17 02.8 45.589 46.238 130.0 0.9 24.7
2001 04 11 09 38.53 +17 04.1 45.727 46.238 120.1 1.1 24.7
2001 04 21 09 38.27 +17 04.9 45.880 46.237 110.3 1.2 24.7
2001 05 01 09 38.14 +17 04.9 46.042 46.237 100.5 1.2 24.7
2001 05 11 09 38.15 +17 04.2 46.210 46.236 90.9 1.3 24.7
2001 05 21 09 38.30 +17 02.8 46.378 46.236 81.3 1.2 24.7
2001 05 31 09 38.59 +17 00.7 46.543 46.235 71.8 1.2 24.7
2001 06 10 09 39.01 +16 58.0 46.698 46.235 62.3 1.1 24.7
2001 06 20 09 39.56 +16 54.8 46.840 46.234 52.9 1.0 24.7
2001 06 30 09 40.21 +16 51.1 46.965 46.233 43.6 0.9 24.7
2001 07 10 09 40.95 +16 47.1 47.070 46.233 34.2 0.7 24.7
Brian G. Marsden (C) Copyright 2001 MPC M.P.E.C. 2001-D35
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