MPEC 2022-R138 : 2021 VH2
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M.P.E.C. 2022-R138 Issued 2022 September 8, 14:06 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
2021 VH2
Revision to MPEC 2021-V129
Additional Observations:
K21V02H KC2022 08 21.43936021 51 49.038+06 31 34.80 24.89GVER138T12
K21V02H &C2022 08 23.13570321 46 37.678+06 06 33.18 24.5 GVER138309
K21V02H &C2022 08 23.14295221 46 36.016+06 06 26.16 24.5 GVER138309
K21V02H &C2022 08 23.15020421 46 34.351+06 06 19.15 24.6 GVER138309
K21V02H C2022 08 24.30601721 43 01.722+05 45 07.37 23.82GVER138T14
K21V02H C2022 08 24.31544021 42 59.606+05 44 57.78 24.26GVER138T14
K21V02H KC2022 08 24.38027521 42 44.752+05 43 50.81 25.17GVER138T12
Observer details:
309 Cerro Paranal. Observers O. Hainaut, M. Micheli, D. Koschny, L. Conversi.
Measurer M. Micheli. 8.2-m VLT UT1 + CCD.
T12 Mauna Kea-UH/Tholen NEO Follow-Up (2.24-m). Observers D. J. Tholen, D.
Hung. Measurer D. J. Tholen. 2.24-m f/10.1 reflector + 2112 x 2112
pixels STA1600 10k CCD.
T14 Mauna Kea-UH/Tholen NEO Follow-Up (CFHT). Observer A. Acohido. Measurer
D. J. Tholen. 3.6-m f/4.1 reflector + 1024 x 2306 pixels Megacam.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
220821 T12 96.3- 37.0- 220824 T12 97.0- 39.2- MPO666690 +0.02 days
Orbital elements:
2021 VH2 Earth MOID = 0.0016 AU
Epoch 2022 Aug. 9.0 TT = JDT 2459800.5 Veres
M 193.23612 (2000.0) P Q
n 0.96821894 Peri. 261.91716 -0.59582081 -0.80295664
a 1.0119374 Node 224.66698 +0.74555514 -0.54556731
e 0.0781865 Incl. 1.30976 +0.29857174 -0.24003533
P 1.02 H 28.82 G 0.15 U 2
Residuals in seconds of arc
211027 G96 0.1+ 0.2- 211106 595 0.1- 0.7+ 211109 T12 0.1- 0.0
211027 G96 0.1- 0.1+ 211106 595 0.5- 0.2+ 211110 033 0.4+ 1.0-
211105 G96 0.0 0.1+ 211106 595 0.6- 0.1- 211110 033 0.1+ 0.1+
211105 G96 0.0 0.0 211106 C95 0.1- 0.0 211110 033 0.0 0.1+
211105 G96 0.2+ 0.1+ 211106 C95 0.3+ 0.1- 211110 033 0.1+ 0.6-
211105 I52 0.1+ 0.2- 211106 C95 1.2+ 0.6- 211110 I52 0.1- 0.1-
211105 I52 0.1+ 0.1- 211106 I52 0.2+ 0.2- 211110 I52 0.3- 0.3-
211105 I52 0.1- 0.2- 211106 I52 0.4- 0.2+ 220821 T12 0.1+ 0.0
211105 033 0.0 0.1+ 211106 I52 0.3+ 0.2- 220823 309 0.0 0.0
211105 033 0.2+ 0.2- 211106 I52 0.3+ 0.0 220823 309 0.0 0.0
211105 033 0.2+ 0.2- 211107 H21 0.2- 0.0 220823 309 0.0 0.0
211105 I93 0.1+ 0.1- 211107 H21 0.1+ 0.2+ 220824 T14 0.0 0.0
211105 I93 0.2- 0.4+ 211109 T12 0.0 0.0 220824 T14 0.1- 0.0
211105 I93 0.2- 0.2+ 211109 T12 0.0 0.0 220824 T12 0.1+ 0.1-
Ephemeris:
2021 VH2 a,e,i = 1.01, 0.08, 1 q = 0.9328
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2022 08 09 22 25 16.9 +08 11 23 0.08595 1.0892 150.1 27.7 24.9
...
2022 08 24 21 43 54.5 +05 50 59 0.07556 1.0832 161.6 17.1 24.3
...
2022 09 01 21 19 32.1 +03 05 49 0.07440 1.0782 156.9 21.5 24.4
...
2022 09 07 21 03 39.7 +00 40 34 0.07545 1.0738 149.8 28.1 24.6
2022 09 08 21 01 19.6 +00 15 49 0.07577 1.0730 148.6 29.3 24.7
2022 09 09 20 59 05.3 -00 08 55 0.07611 1.0722 147.3 30.5 24.7
...
2022 09 15 20 47 47.4 -02 34 59 0.07883 1.0670 139.5 37.8 25.0
...
2022 09 23 20 38 37.1 -05 34 26 0.08375 1.0592 129.8 46.7 25.3
...
2022 10 08 20 38 31.1 -09 54 15 0.09443 1.0424 114.7 60.5 26.0
A. U. Tomatic (C) Copyright 2022 MPC M.P.E.C. 2022-R138
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