[Iaude] MPEC O115: 2021 VB9 [a=2.13,e=0.46,i=5.2,H=21.49]
mpec at cfa.harvard.edu
mpec at cfa.harvard.edu
Wed Jul 31 11:15:07 EDT 2024
M.P.E.C. 2024-O115 Issued 2024 July 31, 15:13 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 VB9
Revision to MPEC 2021-V272
Additional Observations:
K21V09B KB2024 07 14.94787 18 16 52.927-51 45 13.82 19.7 GXEO115L87
K21V09B KB2024 07 14.95462 18 16 53.105-51 45 20.38 18.6 GXEO115L87
K21V09B KB2024 07 14.96137 18 16 53.342-51 45 25.63 19.9 GXEO115L87
K21V09B C2024 07 15.10061518 17 04.91 -51 47 22.3 WEO115X09
K21V09B C2024 07 15.10761218 17 05.27 -51 47 28.8 WEO115X09
K21V09B KB2024 07 30.97837 18 49 36.898-54 08 17.16 XEO115L87
K21V09B KB2024 07 30.98449 18 49 37.872-54 08 17.30 19.7 GXEO115L87
K21V09B KB2024 07 30.99061 18 49 38.945-54 08 16.33 XEO115L87
Observer details:
L87 Moonbase South Observatory, Hakos. Observer G. Duszanowicz. 0.28-m f/1.9
reflector + CMO.
X09 Deep Random Survey, Rio Hurtado. Observers A. Schnabel, D. Ruhela.
Measurer S. Deen. 0.43-m reflector + CMOS.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
240714 L87 0.30- 0.06- 240730 L87 0.35- 0.06- E2024-F07 -0.07 days
Orbital elements:
2021 VB9 Earth MOID = 0.1585 AU
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5 Veres
M 17.96616 (2000.0) P Q
n 0.31768452 Peri. 305.46649 +0.80984981 +0.58590244
a 2.1271854 Node 18.72190 -0.50424586 +0.72080805
e 0.4597165 Incl. 5.24708 -0.29979893 +0.37034321
P 3.10 H 21.49 G 0.15 U 2
Residuals in seconds of arc
211106 F52 0.0 0.0 211111 033 0.0 0.4+ 211126 F51 0.0 0.1+
211106 F52 0.1+ 0.1- 211112 V06 0.0 0.0 240714 L87 0.6+ 0.7+
211106 F52 0.1- 0.1- 211112 V06 (0.5- 0.3-) 240714 L87 0.4- 0.4-
211107 I52 0.7- 0.1- 211112 V06 (0.2- 0.6-) 240714 L87 0.9- 0.2-
211107 I52 0.7+ 0.6+ 211116 I52 0.2- 0.2+ 240715 X09 0.0 0.0
211107 I52 0.8+ 0.4+ 211116 I52 0.7+ 0.4+ 240715 X09 0.4+ 0.2-
211111 033 0.3- 0.1- 211116 I52 0.3- 0.1+ 240730 L87 0.2+ 0.2+
211111 033 0.0 0.2+ 211126 F51 0.1+ 0.1- 240730 L87 0.1- 0.0
211111 033 (0.3- 0.9+) 211126 F51 0.0 0.0 240730 L87 0.5+ 0.9+
Ephemeris:
2021 VB9 a,e,i = 2.13, 0.46, 5 q = 1.1493
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2024 07 01 18 08 57.9 -47 43 30 0.2780 1.2733 154.6 20.0 20.2
...
2024 07 16 18 18 05.9 -51 59 50 0.2319 1.2143 145.3 28.4 20.0
...
2024 07 24 18 31 19.5 -53 30 46 0.2138 1.1896 141.0 32.5 19.9
...
2024 07 30 18 46 40.5 -54 05 45 0.2025 1.1747 138.5 34.9 19.8
2024 07 31 18 49 43.4 -54 08 03 0.2008 1.1725 138.2 35.2 19.8
2024 08 01 18 52 54.9 -54 09 13 0.1991 1.1704 137.9 35.5 19.8
...
2024 08 07 19 14 58.0 -53 49 18 0.1904 1.1599 136.6 36.9 19.7
...
2024 08 15 19 50 48.0 -51 56 27 0.1819 1.1514 136.4 37.3 19.6
...
2024 08 30 21 02 40.9 -43 16 17 0.1787 1.1530 140.4 34.0 19.5
A. U. Tomatic (C) Copyright 2024 MPC M.P.E.C. 2024-O115
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