[Iaude] MPEC W134: 2021 OD [a=1.45,e=0.12,i=32.1,H=20.20]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Mon Nov 27 09:11:43 EST 2023
M.P.E.C. 2023-W134 Issued 2023 November 27, 14:10 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets, routine data on comets and natural satellites,
and occasional editorial announcements. 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 at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2021 OD
Revision to MPEC 2021-O21
Additional Observations:
K21O00D 0C2023 11 11.60142708 39 35.654-13 57 56.92 23.24GVEW134T12
K21O00D 0C2023 11 11.61334908 39 36.466-13 57 58.04 23.24GVEW134T12
K21O00D 0C2023 11 12.58392308 40 45.284-13 59 19.69 22.83GVEW134T12
K21O00D 0C2023 11 12.62934108 40 48.314-13 59 23.37 22.79GVEW134T12
Observer details:
T12 University of Hawaii 88-inch telescope, Maunakea. Observer D. J. Tholen.
2.24-m f/10.1 reflector + 2112 x 2112 pixels STA1600 10k CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
231111 T12 9.9+ 8.1+ 231112 T12 10.0+ 8.1+ E2021-X46 +0.00 days
Orbital elements:
2021 OD Earth MOID = 0.2722 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5 Veres
M 55.37829 (2000.0) P Q
n 0.56600223 Peri. 212.30574 +0.88833372 +0.20891534
a 1.4474068 Node 129.73033 -0.21790850 +0.97564713
e 0.1248111 Incl. 32.12149 -0.40420179 -0.06683607
P 1.74 H 20.20 G 0.15 U 1
Residuals in seconds of arc
210714 F51 0.0 0.2+ 210720 B67 0.1- 0.2+ 210809 T08 0.4+ 0.3+
210714 F51 0.1- 0.2+ 210720 B67 0.1+ 0.0 210809 T08 0.2+ 0.6-
210717 T08 0.0 0.3+ 210720 A17 0.1- 0.5+ 210813 Y00 0.2- 0.6-
210717 T08 0.1- 0.4+ 210720 A17 0.6+ 0.2- 210813 Y00 0.2- 0.3+
210717 T08 (0.4- 1.2+) 210720 A17 0.3- 0.4+ 210813 Y00 0.8+ 0.1+
210717 T08 0.2+ 0.4+ 210728 807 0.1- 0.4- 210827 807 0.1- 0.0
210717 F51 0.1+ 0.2+ 210728 807 0.2- 0.0 210827 807 0.1+ 0.2-
210717 F51 0.1+ 0.2+ 210728 807 0.1- 0.4- 210827 807 0.0 0.1-
210718 247 0.5- 0.2+ 210729 807 0.1+ 0.4- 210910 807 0.1- 0.2+
210718 J95 0.3+ 0.3- 210729 807 0.1- 0.1- 210910 807 0.4- 0.2+
210718 247 0.1- 0.6- 210729 807 0.1+ 0.0 210910 807 0.0 0.3+
210718 J95 0.1+ 0.3+ 210730 807 0.5+ 0.0 211009 474 0.0 0.3-
210718 247 0.6- 0.6- 210730 807 0.2- 0.0 211009 474 0.1- 0.5+
210718 J95 0.4+ 0.1- 210730 807 0.2- 0.1- 211009 474 0.2+ 0.3+
210718 L81 0.0 0.5- 210805 T08 0.4+ 0.1+ 211009 474 0.0 0.1-
210718 L81 0.3+ 0.2- 210805 T08 0.3- 0.4+ 211202 807 0.2- 0.0
210718 Y00 0.4+ 0.1+ 210805 T08 0.5+ 0.5+ 211202 807 0.3+ 0.1-
210718 Y00 0.1- 0.3+ 210805 T08 0.5- 0.3+ 211202 807 0.2+ 0.1-
210718 Y00 0.6- 0.3+ 210808 W94 0.4+ 0.0 231111 T12 0.0 0.0
210718 587 0.0 0.3- 210808 W94 0.5+ 0.0 231111 T12 0.0 0.0
210718 587 0.1- 0.2+ 210808 W94 0.1+ 0.6+ 231112 T12 0.0 0.0
210718 587 0.0 0.2+ 210809 T08 0.2- 0.1- 231112 T12 0.1+ 0.0
210720 B67 0.4- 0.2+ 210809 T08 0.5- 0.4+
Ephemeris:
2021 OD a,e,i = 1.45, 0.12, 32 q = 1.2668
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 10 28 08 19 21.4 -13 16 52 1.1505 1.4411 84.1 43.3 23.0
...
2023 11 12 08 40 03.8 -13 58 27 1.0514 1.4677 91.9 42.4 22.8
...
2023 11 20 08 48 34.5 -14 01 58 0.9924 1.4815 96.8 41.5 22.7
...
2023 11 26 08 53 36.9 -13 52 09 0.9460 1.4917 101.0 40.5 22.5
2023 11 27 08 54 20.0 -13 49 17 0.9381 1.4934 101.7 40.3 22.5
2023 11 28 08 55 01.0 -13 46 01 0.9302 1.4950 102.5 40.1 22.5
...
2023 12 04 08 58 18.4 -13 17 28 0.8824 1.5049 107.2 38.7 22.4
...
2023 12 12 09 00 19.8 -12 10 29 0.8184 1.5177 114.3 36.2 22.1
...
2023 12 27 08 55 38.2 -08 00 23 0.7063 1.5403 130.7 28.9 21.7
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-W134
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