MPEC 2004-R27 : 1999 RB215
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M.P.E.C. 2004-R27 Issued 2004 Sept. 7, 16:25 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 RB215
Revision to MPEC 2000-A38
Additional Observations:
J99RL5B C2000 12 27.21111 00 27 35.328+03 39 47.28 24.3 R ER027568
J99RL5B C2000 12 28.21603 00 27 36.515+03 39 56.92 24.3 R ER027568
J99RL5B C2003 11 21.14863 00 52 35.78 +07 19 44.7 23.5 R ER027695
J99RL5B C2003 11 21.19689 00 52 35.59 +07 19 43.7 ER027695
Observer details:
568 Mauna Kea. Observers H. Aussel, M. Connelley. Measurer M. Connelley.
2.2-m University of Hawaii reflector + CCD.
695 Kitt Peak. Observers L. H. Wasserman, E. I. Chiang, J. R. Lovering.
Measurers M. W. Buie, R. L. Millis, L. H. Wasserman, E. I. Chiang,
S. N. Hylton, K. B. Clancy, D. E. Trilling, L. E. Hutchison.
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 40.0- 22.4- 031121 695 0.10- 0.06- MPC 38082
Orbital elements:
1999 RB215
Epoch 2004 July 14.0 TT = JDT 2453200.5 MPC
M 11.80967 (2000.0) P Q
n 0.00302304 Peri. 347.77821 +0.99196067 +0.12597493
a 47.3704124 Node 5.03140 -0.10147828 +0.84858774
e 0.3372750 Incl. 7.87388 -0.07560548 +0.51383769
P 326 H 9.4 G 0.15 U 3
Residuals in seconds of arc
990906 568 0.0 0.0 991010 568 0.3- 0.0 991111 568 0.3- 0.1-
990906 568 0.0 0.1- 991010 568 0.3+ 0.5+ 001227 568 0.0 0.0
990906 568 0.3- 0.0 991010 568 0.4+ 0.2+ 001228 568 0.1+ 0.0
990909 568 0.2+ 0.1+ 991011 568 0.2- 0.6+ 031121 695 0.1- 0.2+
990909 568 0.1+ 0.1+ 991011 568 0.2- 0.2- 031121 695 0.2- 0.2+
990909 568 0.1- 0.1- 991111 568 0.2- 0.1-
Ephemeris:
1999 RB215 a,e,i = 47.37, 0.34, 8 q = 31.394
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2004 09 02 01 07.53 +09 08.0 31.380 32.167 140.7 1.1 24.6
2004 09 12 01 06.77 +09 04.3 31.290 32.171 150.6 0.9 24.6
2004 09 22 01 05.91 +08 59.8 31.226 32.175 160.6 0.6 24.5
2004 10 02 01 04.98 +08 54.9 31.191 32.178 170.5 0.3 24.5
2004 10 12 01 04.02 +08 49.6 31.185 32.182 178.0 0.1 24.4
2004 10 22 01 03.07 +08 44.2 31.209 32.186 168.9 0.3 24.5
2004 11 01 01 02.17 +08 39.0 31.263 32.190 158.7 0.6 24.5
2004 11 11 01 01.34 +08 34.1 31.346 32.194 148.5 0.9 24.6
2004 11 21 01 00.63 +08 29.9 31.454 32.198 138.2 1.2 24.6
2004 12 01 01 00.06 +08 26.4 31.585 32.202 128.0 1.4 24.6
2004 12 11 00 59.66 +08 24.0 31.736 32.206 117.7 1.6 24.7
2004 12 21 00 59.45 +08 22.6 31.900 32.209 107.5 1.7 24.7
2004 12 31 00 59.44 +08 22.4 32.073 32.213 97.3 1.7 24.7
2005 01 10 00 59.62 +08 23.4 32.251 32.217 87.2 1.7 24.7
2005 01 20 01 00.01 +08 25.6 32.427 32.221 77.1 1.7 24.7
2005 01 30 01 00.58 +08 29.1 32.596 32.225 67.1 1.6 24.7
2005 02 09 01 01.33 +08 33.7 32.754 32.229 57.2 1.5 24.7
2005 02 19 01 02.24 +08 39.3 32.895 32.233 47.3 1.3 24.7
2005 03 01 01 03.28 +08 45.8 33.017 32.237 37.5 1.1 24.7
This 1:2 Neptune-resonance orbit keeps the object more than 20 AU from
Neptune over a 14 000-year period.
Brian G. Marsden (C) Copyright 2004 MPC M.P.E.C. 2004-R27
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