MPEC 2021-C78 : 2020 BV9
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M.P.E.C. 2021-C78 Issued 2021 February 7, 14:30 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
2020 BV9
Revision to MPEC 2020-B215
Additional Observations:
K20B09V C2019 01 09.40295608 03 02.668+24 13 05.25 23.28GVEC078F51
K20B09V C2019 01 09.41554608 02 59.513+24 13 06.09 23.41GVEC078F51
K20B09V C2019 01 09.42823808 02 56.302+24 13 06.47 22.72GVEC078F51
K20B09V C2019 01 10.35751907 59 14.794+24 13 12.20 23.71GVEC078F51
K20B09V C2019 01 10.36932107 59 11.717+24 13 12.81 23.06GVEC078F51
K20B09V C2019 01 10.38116207 59 08.638+24 13 12.94 23.34GVEC078F51
K20B09V C2019 01 10.39315007 59 05.485+24 13 14.06 21.43GVEC078F51
K20B09V C2020 01 30.32943507 58 53.051+16 43 29.49 22.15GVEC078F51
K20B09V C2021 02 07.28586209 34 03.41 -01 03 15.9 20.66GVEC078G96
K20B09V C2021 02 07.29095509 34 01.53 -01 03 34.8 20.47GVEC078G96
K20B09V C2021 02 07.30116209 33 57.75 -01 04 13.1 20.84GVEC078G96
K20B09V KC2021 02 07.38923109 33 24.98 -01 09 43.2 20.59GVEC078I52
K20B09V KC2021 02 07.39230209 33 23.86 -01 09 54.9 20.72GVEC078I52
K20B09V KC2021 02 07.39383709 33 23.25 -01 10 00.9 20.35GVEC078I52
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, A.
Schultz, M. Willman. Measurers S. Chastel, M. Huber, Y. Ramanjooloo, R.
Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey. Observer G. J. Leonard. Measurers E. J. Christensen,
G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller, R. A.
Kowalski, S. M. Larson, G. J. Leonard, T. A. Pruyne, D. Rankin, R. L.
Seaman, F. C. Shelly, K. W. Wierzchos. 1.5-m reflector + 10K CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer H. Groeller. Measurers
E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, T. A. Pruyne, D.
Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos. 1.0-m reflector +
CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
190109 F51 0.15+ 0.04+ 210207 I52 0.42+ 0.17+ MPO545163 +0.01 days
Orbital elements:
2020 BV9 Earth MOID = 0.0315 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 216.01371 (2000.0) P Q
n 0.99788816 Peri. 317.54128 -0.20042806 +0.97841131
a 0.9917788 Node 300.83828 -0.88236822 -0.20262952
e 0.2528293 Incl. 3.36497 -0.42574044 -0.04065208
P 0.99 H 26.0 G 0.15 U 4
Residuals in seconds of arc
190109 F51 0.2- 0.0 200125 G96 0.0 0.4+ 200127 G96 0.4- 0.3+
190109 F51 0.1+ 0.1+ 200126 G96 0.7- 0.1- 200130 F51 0.9+ 0.5-
190109 F51 0.2+ 0.2- 200126 G96 0.0 0.1- 200130 291 0.1- 0.1+
190110 F51 0.1+ 0.1+ 200126 G96 0.2- 0.2- 200130 291 0.4+ 0.6+
190110 F51 0.1- 0.0 200126 G96 0.1- 0.5+ 200215 291 0.1- 0.7+
190110 F51 0.1- 0.5- 200126 F51 0.6+ 0.5+ 200215 291 0.3- 0.1+
190110 F51 0.4- 0.1+ 200126 F51 0.0 0.1+ 210207 G96 0.2- 0.3-
200125 G96 0.4+ 0.3+ 200126 F51 0.4- 0.1- 210207 G96 0.1- 0.2-
200125 G96 0.1- 0.2- 200126 F51 0.2- 0.2+ 210207 G96 0.1- 0.3-
200125 G96 0.2- 0.4- 200126 T12 0.0 0.0 210207 I52 0.2- 0.1+
200125 G96 0.4- 0.1+ 200127 G96 0.5- 0.1- 210207 I52 0.1+ 0.1-
200125 G96 0.7- 0.5- 200127 G96 0.2+ 0.1- 210207 I52 0.5- 0.3-
200125 G96 0.5- 0.2+ 200127 G96 0.1+ 0.4+
Ephemeris:
2020 BV9 a,e,i = 0.99, 0.25, 3 q = 0.7410
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 01 08 10 19 08.6 +12 03 25 0.2343 1.1618 135.4 36.5 24.7
...
2021 01 23 10 15 23.6 +08 03 45 0.1491 1.1158 150.0 26.2 23.3
...
2021 01 31 10 01 47.8 +04 32 10 0.1090 1.0876 159.0 19.0 22.3
...
2021 02 06 09 40 37.2 +00 13 05 0.08188 1.0649 163.6 15.2 21.5
2021 02 07 09 35 34.8 -00 44 38 0.07767 1.0610 163.5 15.3 21.4
2021 02 08 09 29 57.1 -01 48 04 0.07356 1.0570 163.1 15.7 21.3
...
2021 02 14 08 37 59.5 -10 55 56 0.05178 1.0327 150.0 28.5 20.9
...
2021 02 22 05 52 28.7 -30 43 40 0.03758 0.9987 103.8 74.2 21.5
...
2021 03 09 01 02 00.7 -28 21 03 0.07494 0.9319 34.4 143.0 27.5
A. U. Tomatic (C) Copyright 2021 MPC M.P.E.C. 2021-C78
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