MPEC 2021-B22 : 2021 BF
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M.P.E.C. 2021-B22 Issued 2021 January 17, 04:37 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 BF
Observations:
K21B00F C2021 01 07.27118 05 17 06.23 -09 13 15.0 19.7 GVEB022703
K21B00F C2021 01 07.28174 05 17 11.13 -09 09 05.3 20.3 GVEB022703
K21B00F C2021 01 10.28324 05 44 24.82 +11 25 16.8 19.1 GVEB022G96
K21B00F C2021 01 10.28859 05 44 27.45 +11 27 26.8 VEB022G96
K21B00F* C2021 01 16.33477906 42 49.89 +43 17 02.6 20.20GVEB022G96
K21B00F C2021 01 16.34058506 42 52.93 +43 18 14.3 19.93GVEB022G96
K21B00F C2021 01 16.35213106 42 58.93 +43 20 36.4 20.16GVEB022G96
K21B00F KC2021 01 16.43728106 43 44.59 +43 37 49.3 19.93GVEB022I52
K21B00F KC2021 01 16.43826906 43 45.09 +43 38 01.1 20.35GVEB022I52
K21B00F KC2021 01 16.43925606 43 45.67 +43 38 12.7 20.35GVEB022I52
K21B00F KC2021 01 16.44024506 43 46.20 +43 38 24.6 20.51GVEB022I52
K21B00F KC2021 01 16.72557206 46 48.87 +44 35 30.8 VEB022104
K21B00F KC2021 01 16.72942606 46 51.08 +44 36 18.8 19.8 GVEB022104
K21B00F KC2021 01 16.73712406 46 55.42 +44 37 53.5 19.8 GVEB022104
K21B00F KC2021 01 17.13474606 50 44.10 +45 54 44.0 20.15GVEB022I52
K21B00F KC2021 01 17.13573006 50 44.61 +45 54 55.5 20.77GVEB022I52
K21B00F KC2021 01 17.13671506 50 45.11 +45 55 06.9 20.88GVEB022I52
K21B00F KC2021 01 17.13769806 50 45.68 +45 55 18.8 20.63GVEB022I52
K21B00F KC2021 01 17.16506006 50 59.29 +46 00 29.3 20.7 VqEB022858
K21B00F KC2021 01 17.17201606 51 02.90 +46 01 48.3 20.5 VqEB022858
K21B00F KC2021 01 17.17895406 51 06.50 +46 03 06.7 20.3 VqEB022858
Observer details:
104 San Marcello Pistoiese. Observers P. Bacci, M. Maestripieri. Measurers
P. Bacci, L. Tesi, G. Fagioli. 0.60-m reflector + CCD.
703 Catalina Sky Survey. Observer D. Rankin. Measurers B. Gray, D. Rankin,
F. C. Shelly. 0.68-m Schmidt + 10K CCD.
858 Tebbutt Observatory, Edgewood. Observer F. B. Zoltowski. 0.51-m Schmidt-
Cassegrain + CCD.
G96 Mt. Lemmon Survey. Observers H. Groeller, D. C. Fuls. Measurers B. Gray,
D. Rankin, F. C. Shelly, 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, R. L. Seaman, K. W. Wierzchos. 1.5-m reflector +
10K CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer D. Rankin. 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.
Orbital elements:
2021 BF Earth MOID = 0.0441 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 0.06083 (2000.0) P Q
n 0.52172685 Peri. 330.50415 +0.13238655 -0.95595131
a 1.5281779 Node 110.82070 +0.95544221 +0.05272442
e 0.3474074 Incl. 16.27679 +0.26382566 +0.28875114
P 1.89 H 25.1 G 0.15 U 7
Residuals in seconds of arc
210107 703 0.5- 0.3- 210116 I52 0.1+ 0.2+ 210117 I52 0.1+ 0.2-
210107 703 0.2- 0.5+ 210116 I52 0.3- 0.2+ 210117 I52 0.1- 0.0
210110 G96 0.8+ 0.4+ 210116 I52 0.1+ 0.0 210117 I52 0.3- 0.1+
210110 G96 0.2+ 0.7- 210116 I52 0.1- 0.1+ 210117 I52 0.2+ 0.7+
210116 G96 0.1+ 0.2+ 210116 104 0.6- 1.2- 210117 858 0.3+ 0.0
210116 G96 0.2+ 0.1+ 210116 104 0.1- 0.4- 210117 858 0.1+ 0.2+
210116 G96 0.3- 0.1- 210116 104 0.2+ 0.0 210117 858 0.0 0.2+
Ephemeris:
2021 BF a,e,i = 1.53, 0.35, 16 q = 0.9973
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 12 18 03 15 56.5 -59 52 50 0.1399 0.9973 91.4 80.5 23.6
...
2021 01 02 04 35 02.4 -35 57 32 0.06520 1.0105 113.0 63.6 21.4
...
2021 01 10 05 41 48.1 +09 29 39 0.04839 1.0265 152.2 26.5 19.8
...
2021 01 16 06 39 39.2 +42 04 35 0.06449 1.0421 154.1 24.3 20.4
2021 01 17 06 49 18.4 +45 29 15 0.06888 1.0450 151.8 26.4 20.6
2021 01 18 06 58 50.4 +48 24 53 0.07357 1.0480 149.6 28.3 20.8
...
2021 01 24 07 51 21.7 +58 56 13 0.1057 1.0673 139.9 36.5 21.8
...
2021 02 01 08 43 28.8 +63 37 56 0.1538 1.0968 133.5 40.7 22.8
...
2021 02 16 09 34 18.6 +63 41 57 0.2510 1.1611 128.6 41.7 24.1
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-B22
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