MPEC 2000-R36 : 1999 RM28
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M.P.E.C. 2000-R36 Issued 2000 Sept. 8, 19:56 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
BMARSDEN@CFA.HARVARD.EDU or GWILLIAMS@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
1999 RM28
Revision to MPEC 1999-R21
Observations:
J99R28M 1 1989 07 07.63021 20 39 45.80 -01 01 21.9 18.5 V 413
J99R28M 1 1989 07 07.67187 20 39 43.31 -01 01 51.7 413
Observer details:
413 Siding Spring. Observer K. S. Russell. Measurer R. H. McNaught. Image
identified by A. Boattini and R. H. McNaught. 1.2-m Schmidt.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
890707 413 0.04+ 0.01- 890707 413 0.04+ 0.01- MPC 39550 -0.081 day
Orbital elements:
1999 RM28
Epoch 2000 Sept. 13.0 TT = JDT 2451800.5 Williams
M 92.14949 (2000.0) P Q
n 0.40236811 Peri. 301.71545 +0.12788770 -0.92735083
a 1.8171342 Node 136.18990 +0.99092543 +0.13426492
e 0.3241058 Incl. 30.52948 -0.04137066 +0.34927549
P 2.45 H 16.7 G 0.15 U 2
Residuals in seconds of arc
890707 413 0.0 0.9- 990920 426 0.2+ 0.1+ 991205 428 0.3- 0.5+
890707 413 0.1- 0.2+ 990920 426 0.1- 0.5- 991220 413 0.5+ 0.1+
990903 413 0.0 0.1+ 990920 413 0.2- 0.4- 991220 413 0.4+ 0.3-
990903 413 0.7- 1.8+ 990920 413 0.3- 0.4- 000204 422 0.0 0.0
990905 413 1.5+ 1.4+ 990928 413 0.1- 0.2- 000204 422 0.3+ 0.4+
990905 413 0.4+ 2.0+ 990928 413 0.1- 0.1- 000204 422 0.2+ 0.1-
990909 426 0.4- 0.6- 991005 413 0.1+ 0.3- 000226 413 0.1+ 0.0
990909 426 0.2- 0.5- 991005 413 0.0 0.3- 000226 413 0.0 0.2-
990909 426 0.3- 0.6- 991006 413 0.2+ 0.0 000306 704 0.3+ 1.0-
990910 426 0.5- 0.5- 991006 413 0.1- 0.0 000306 704 0.4- 0.3-
990910 426 0.4- 0.5- 991016 413 0.0 0.2- 000306 704 0.3+ 0.7+
990910 426 0.4+ 0.6- 991016 413 0.0 0.1- 000306 704 0.2- 0.4+
990914 413 0.1- 0.2- 991016 413 0.0 0.2- 000306 704 0.1- 1.1+
990914 413 0.1- 0.0 991104 413 0.1+ 0.2+ 000315 413 0.2- 0.6-
990918 428 0.9+ 0.6+ 991104 413 0.2- 0.5+ 000315 413 0.1- 0.5-
990918 413 0.3+ 0.3- 991205 428 0.6- 0.1+
990918 413 0.0 0.2- 991205 428 1.1- 0.5-
Ephemeris:
1999 RM28 a,e,i = 1.82, 0.32, 31 q = 1.2282
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2001 03 22 18 44.35 +04 49.6 2.359 2.400 80.2 24.2 21.6
2001 04 01 18 53.65 +06 01.0 2.247 2.403 86.6 24.5 21.5
2001 04 11 19 01.02 +07 16.3 2.132 2.406 93.2 24.6 21.4
2001 04 21 19 06.19 +08 32.7 2.017 2.406 100.1 24.3 21.3
2001 05 01 19 08.84 +09 46.8 1.904 2.405 107.3 23.6 21.1
2001 05 11 19 08.69 +10 53.6 1.796 2.402 114.8 22.4 21.0
2001 05 21 19 05.50 +11 47.3 1.697 2.398 122.5 20.8 20.8
2001 05 31 18 59.17 +12 20.5 1.609 2.392 130.2 18.9 20.6
2001 06 10 18 49.92 +12 25.1 1.536 2.384 137.4 16.8 20.4
2001 06 20 18 38.31 +11 54.3 1.483 2.375 143.1 14.9 20.3
2001 06 30 18 25.35 +10 43.6 1.452 2.364 146.0 13.9 20.2
2001 07 10 18 12.38 +08 54.1 1.445 2.351 145.0 14.3 20.2
2001 07 20 18 00.69 +06 32.4 1.462 2.337 140.4 16.1 20.2
2001 07 30 17 51.41 +03 48.5 1.502 2.321 133.5 18.5 20.4
2001 08 09 17 45.20 +00 53.9 1.563 2.303 125.4 21.0 20.5
2001 08 19 17 42.32 -02 01.7 1.639 2.284 117.0 23.3 20.7
2001 08 29 17 42.74 -04 51.5 1.727 2.263 108.7 25.0 20.8
Timothy B. Spahr (C) Copyright 2000 MPC M.P.E.C. 2000-R36
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