MPEC 2004-R78 : 1999 RW215
The following Minor Planet Electronic Circular may be linked-to from your own Web pages, but must not otherwise be redistributed electronically.A form allowing access to any MPEC is at the bottom of this page.
Read MPEC 2004-R77
Read MPEC 2004-R79
M.P.E.C. 2004-R78 Issued 2004 Sept. 14, 14:16 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.
Supported in part by the Brinson Foundation
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
1999 RW215
Revision to MPEC 2000-C61
Additional Observations:
J99RL5W C2000 12 27.26274 00 46 13.744+14 26 12.74 22.7 R ER078568
J99RL5W C2000 12 28.26969 00 46 14.269+14 25 56.12 22.7 R ER078568
J99RL5W C2003 11 22.12531 01 11 17.12 +16 26 56.5 22.4 R ER078695
J99RL5W C2003 11 22.18533 01 11 16.87 +16 26 54.3 ER078695
Observer details:
568 Mauna Kea. Observers H. Aussel, M. Connelley. Measurer M. Connelley.
3.6-m Canada-France-Hawaii Telescope + CCD.
695 Kitt Peak. Observers L. H. Wasserman, E. I. Chiang, J. R. Lovering.
Measurers M. W. Buie, L. H. Wasserman, E. I. Chiang, K. B. Clancy,
D. E. Trilling. 4-m telescope + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees) and reference
001227 568 0.07- 0.03- 031122 695 0.32- 0.12- MPC 38805
Orbital elements:
1999 RW215
Epoch 2004 July 14.0 TT = JDT 2453200.5 MPC
M 316.64603 (2000.0) P Q
n 0.00451329 Peri. 189.14105 +0.13987756 -0.97458400
a 36.2638490 Node 252.96661 +0.91963565 +0.19337425
e 0.1566388 Incl. 10.54540 +0.36702118 -0.11310362
P 218 H 8.0 G 0.15 U 3
Residuals in seconds of arc
990907 568 0.5+ 0.2- 990913 568 0.2+ 0.3- 991109 568 0.3- 0.6-
990907 568 0.6+ 1.1- 990913 568 0.1+ 0.3- 001227 568 0.0 0.1+
990907 568 0.7+ 0.7- 991008 568 0.2- 0.3+ 001228 568 0.1- 0.2+
990911 568 0.4+ 0.6- 991008 568 0.5- 0.3+ 031122 695 0.3+ 0.9-
990911 568 0.3+ 0.4- 991109 568 0.5- 0.4- 031122 695 0.3+ 0.9-
Ephemeris:
1999 RW215 a,e,i = 36.26, 0.16, 11 q = 30.584
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2004 09 12 01 25.93 +17 40.0 31.807 32.609 142.3 1.1 23.2
2004 09 22 01 25.10 +17 36.2 31.716 32.605 152.0 0.8 23.2
2004 10 02 01 24.18 +17 31.4 31.652 32.602 161.3 0.6 23.2
2004 10 12 01 23.21 +17 25.8 31.616 32.598 169.5 0.3 23.1
2004 10 22 01 22.22 +17 19.7 31.610 32.594 171.3 0.3 23.1
2004 11 01 01 21.27 +17 13.2 31.634 32.590 164.2 0.5 23.2
2004 11 11 01 20.37 +17 06.6 31.687 32.586 154.9 0.7 23.2
2004 11 21 01 19.58 +17 00.1 31.768 32.583 145.0 1.0 23.2
2004 12 01 01 18.92 +16 54.0 31.875 32.579 135.0 1.2 23.3
2004 12 11 01 18.42 +16 48.5 32.003 32.575 124.8 1.4 23.3
2004 12 21 01 18.11 +16 43.8 32.148 32.571 114.7 1.6 23.3
2004 12 31 01 17.99 +16 40.1 32.306 32.567 104.6 1.7 23.3
2005 01 10 01 18.08 +16 37.5 32.472 32.564 94.5 1.7 23.3
2005 01 20 01 18.37 +16 36.1 32.641 32.560 84.4 1.7 23.3
2005 01 30 01 18.87 +16 36.0 32.806 32.556 74.5 1.7 23.4
2005 02 09 01 19.55 +16 37.1 32.964 32.552 64.6 1.6 23.4
2005 02 19 01 20.41 +16 39.4 33.108 32.549 54.8 1.4 23.4
2005 03 01 01 21.42 +16 42.9 33.236 32.545 45.1 1.2 23.3
2005 03 11 01 22.55 +16 47.5 33.344 32.541 35.6 1.0 23.3
The 3:4 Neptune-resonance orbit keeps the object more than 11 AU from
Neptune over a 14 000-year period.
Brian G. Marsden (C) Copyright 2004 MPC M.P.E.C. 2004-R78
Read MPEC 2004-R77
Read MPEC 2004-R79
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)