MPEC 2021-J89 : 2010 RA91
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M.P.E.C. 2021-J89 Issued 2021 May 7, 16:12 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are published
on behalf of Division F 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 https://www.minorplanetcenter.net/ ISSN 1523-6714
2010 RA91
Revision to MPEC 2010-R110
Additional Observations:
K10R91A C2021 04 17.53006916 21 37.379-08 15 38.90 21.96GVEJ089F51
K10R91A C2021 04 17.54240716 21 35.083-08 15 22.14 23.02GVEJ089F51
K10R91A C2021 04 17.55473316 21 32.803-08 15 05.76 22.02GVEJ089F51
K10R91A KC2021 05 04.38459 15 31 06.00 -02 51 21.4 oEJ089291
K10R91A KC2021 05 04.40252 15 31 02.75 -02 51 06.3 22.5 RoEJ089291
K10R91A KC2021 05 04.42047 15 30 59.52 -02 50 50.7 23.4 RoEJ089291
K10R91A C2021 05 04.43098715 30 58.772-02 50 36.68 23.25GVEJ089F51
K10R91A C2021 05 04.44353815 30 56.471-02 50 26.04 22.59GVEJ089F51
K10R91A C2021 05 04.45607115 30 54.210-02 50 15.47 23.55GVEJ089F51
K10R91A C2021 05 04.46861315 30 51.923-02 50 04.41 22.26GVEJ089F51
K10R91A KC2021 05 07.29731 15 22 57.08 -02 12 07.7 22.7 RoEJ089291
K10R91A KC2021 05 07.30631 15 22 55.47 -02 12 00.9 oEJ089291
Observer details:
291 LPL/Spacewatch II. Observers A. F. Tubbiolo, M. T. Read. 1.8-m f/2.7
reflector + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, A.
Schultz, I. Smith. Measurers S. Chastel, M. Huber, Y. Ramanjooloo, R.
Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
210417 F51 0.06+ 0.02+ 210507 291 0.07+ 0.02+ MPO562261 +0.03 days
Orbital elements:
2010 RA91 Earth MOID = 0.0030 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 344.66398 (2000.0) P Q
n 0.78198744 Peri. 272.71426 -0.10971961 -0.99394358
a 1.1668173 Node 183.60225 +0.94639384 -0.10257665
e 0.3490701 Incl. 5.61386 +0.30380967 -0.03942334
P 1.26 H 23.57 G 0.15 U 1
Residuals in seconds of arc
100903 F51 0.0 0.0 100917 H21 0.4+ 0.3- 100919 F51 0.1- 0.1-
100903 F51 0.0 0.1+ 100917 H21 0.2+ 0.2- 100923 H21 0.2- 0.1-
100910 F51 0.1+ 0.2+ 100917 G89 0.2- 0.1- 100923 H21 0.0 0.1-
100910 F51 0.1+ 0.1+ 100917 G89 0.1- 0.1- 100923 H21 0.1+ 0.2-
100913 G89 0.4- 0.3- 100917 G89 0.2- 0.1- 100923 I41 0.2- 0.5+
100913 G89 0.2- 0.4- 100917 291 0.2- 0.1+ 100923 I41 0.6+ 0.7-
100913 G89 0.1- 0.2- 100917 291 0.5- 0.3- 100924 G89 0.3+ 0.1-
100913 J04 0.2+ 0.2+ 100917 291 0.3+ 0.3+ 100924 G89 0.4+ 0.1-
100913 J04 0.5- 0.0 100917 J04 0.0 0.0 100924 G89 0.3+ 0.1-
100913 J04 0.0 0.0 100917 J04 0.0 0.0 100927 H21 0.2- 0.1+
100913 204 0.1+ 0.0 100917 J04 0.1- 0.0 100927 H21 0.2+ 0.3-
100913 473 0.3- 0.4- 100918 J04 0.2+ 0.0 100927 H21 0.2+ 0.0
100913 473 0.5- 0.4- 100918 J04 0.1+ 0.2+ 100930 H21 0.2- 0.2+
100914 H21 0.3- 0.4- 100918 J04 0.3+ 0.2+ 100930 H21 0.1- 0.1+
100914 H21 0.4- 0.2+ 100918 H21 0.1- 0.4- 100930 704 0.7+ 0.1-
100914 H21 0.4- 0.2+ 100918 H21 0.1+ 0.1- 100930 G89 0.0 0.3-
100914 H21 0.4- 0.4- 100918 H21 0.4- 0.2+ 100930 704 0.1- 0.4-
100914 204 0.0 0.0 100918 291 (2.4- 1.0-) 100930 G89 0.1- 0.3-
100914 G89 0.2+ 0.2+ 100918 291 0.6- 0.2- 100930 704 0.5- 0.7+
100914 G89 0.2+ 0.2+ 100918 G89 0.1+ 0.2+ 100930 G89 0.1- 0.4-
100914 G89 0.2+ 0.1+ 100918 291 0.3+ 0.2+ 100930 704 0.1- 0.8-
100914 695 0.0 0.1- 100918 G89 0.0 0.2+ 101001 H21 0.7+ 0.5+
100914 695 0.0 0.0 100918 G89 0.0 0.2+ 101001 H21 0.1+ 0.3-
100914 695 0.1+ 0.1+ 100918 F51 0.7- 0.3- 101001 H21 0.4- 0.4-
100915 G89 0.3+ 0.1- 100918 F51 0.0 0.0 101004 H21 0.3+ 0.5+
100915 G89 0.3+ 0.1- 100918 F51 0.1+ 0.1+ 101004 H21 0.1+ 0.2-
100915 291 0.3+ 0.1+ 100918 F51 0.6- 0.4- 101004 H21 0.4- 0.8+
100915 G89 0.4+ 0.0 100918 F51 0.1- 0.0 210417 F51 0.1+ 0.1+
100915 291 0.0 0.8- 100918 F51 0.4+ 0.2+ 210417 F51 0.1- 0.1+
100915 291 0.3- 0.0 100919 291 0.5- 0.1- 210417 F51 0.0 0.3-
100915 H21 0.4- 0.1+ 100919 291 1.0- 0.3- 210504 291 0.0 0.3+
100915 H21 0.4- 0.4+ 100919 291 (1.4- 0.3-) 210504 291 0.1+ 0.2-
100915 H21 0.4- 0.1+ 100919 F51 0.3+ 0.3+ 210504 291 0.4+ 0.3-
100915 H21 0.1- 0.2+ 100919 F51 0.0 0.1- 210504 F51 0.3- 0.3+
100915 F51 0.1- 0.1- 100919 F51 0.1+ 0.0 210504 F51 0.4- 0.1+
100916 291 0.7+ 0.6+ 100919 F51 0.2+ 0.2+ 210504 F51 0.1+ 0.2-
100916 291 1.1+ 0.1+ 100919 F51 0.4+ 0.3+ 210504 F51 0.2+ 0.0
100916 291 0.3+ 0.3+ 100919 F51 0.2+ 0.2- 210507 291 0.6+ 0.0
100917 H21 0.2+ 0.5- 100919 F51 0.1- 0.1- 210507 291 0.2- 0.0
Ephemeris:
2010 RA91 a,e,i = 1.17, 0.35, 6 q = 0.7595
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 04 07 16 48 51.8 -12 20 32 0.2746 1.1772 124.1 44.7 22.8
...
2021 04 22 16 08 23.7 -06 36 50 0.2866 1.2564 147.5 25.4 22.5
...
2021 04 30 15 44 02.3 -04 01 00 0.3045 1.2955 158.6 16.5 22.4
...
2021 05 06 15 26 31.9 -02 28 37 0.3246 1.3234 163.6 12.4 22.5
2021 05 07 15 23 45.7 -02 15 37 0.3285 1.3279 164.0 12.1 22.5
2021 05 08 15 21 02.7 -02 03 20 0.3326 1.3323 164.1 11.9 22.5
...
2021 05 14 15 06 03.7 -01 04 45 0.3607 1.3583 162.0 13.3 22.8
...
2021 05 22 14 50 12.4 -00 25 20 0.4068 1.3907 154.6 18.2 23.3
...
2021 06 06 14 33 33.7 -00 44 51 0.5158 1.4446 139.1 27.4 24.2
A. U. Tomatic (C) Copyright 2021 MPC M.P.E.C. 2021-J89
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