MPEC 2021-C100 : 2020 BG1
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M.P.E.C. 2021-C100 Issued 2021 February 9, 01:41 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 BG1
Revision to MPEC 2020-B33
Additional Observations:
K20B01G C2016 09 27.53542602 37 01.000-09 09 45.30 22.06GVEC100F51
K20B01G C2016 09 27.54707902 36 59.675-09 09 51.27 22.44GVEC100F51
K20B01G C2016 10 08.49639202 14 00.103-10 23 05.91 22.05GVEC100F51
K20B01G C2016 10 08.50884302 13 58.284-10 23 09.23 21.83GVEC100F51
K20B01G C2016 10 08.52128502 13 56.447-10 23 12.52 22.03GVEC100F51
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.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
160927 F51 0.04+ 0.03+ 161008 F51 0.05+ 0.03+ MPO545160 -0.00 days
Orbital elements:
2020 BG1 Earth MOID = 0.0780 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 159.14318 (2000.0) P Q
n 0.72683555 Peri. 159.27212 -0.60294878 +0.78357847
a 1.2251199 Node 73.34614 -0.75220581 -0.49580428
e 0.2542328 Incl. 8.99914 -0.26578032 -0.37441007
P 1.36 H 22.1 G 0.15 U 3
Residuals in seconds of arc
160927 F51 0.1- 0.0 200120 I52 0.4+ 0.7- 200203 291 0.4- 0.7+
160927 F51 0.2+ 0.1- 200120 I52 0.0 0.0 200203 291 0.2- 0.1+
161008 F51 0.1- 0.0 200124 291 0.2- 0.5+ 200205 G96 0.2+ 0.2+
161008 F51 0.0 0.0 200124 291 0.1+ 0.1+ 200205 291 0.6- 0.3-
161008 F51 0.1- 0.1+ 200124 291 0.0 0.3+ 200205 G96 0.3+ 0.1+
200117 F52 0.3- 0.0 200124 I52 0.1- 0.2- 200205 G96 0.6+ 0.7+
200117 F52 0.3+ 0.5+ 200124 I52 0.3+ 0.1- 200205 291 0.6- 0.2+
200118 F51 0.1- 0.2- 200124 F52 0.2- 0.0 200214 I52 0.4+ 0.4-
200118 F51 0.0 0.0 200124 I52 0.0 0.7- 200214 I52 0.6- 0.5-
200118 F51 0.1- 0.1+ 200124 I52 1.1+ 0.7- 200214 I52 0.3+ 0.5-
200119 I52 0.2- 0.1- 200124 F52 0.1- 0.1+ 200214 I52 1.4+ 1.1+
200119 I52 0.5- 0.1+ 200124 F52 0.1- 0.0 200221 568 0.1- 0.2-
200119 I52 0.2- 0.4- 200124 F52 0.1+ 0.1+ 200221 568 0.1- 0.2-
200119 711 0.0 0.7+ 200130 I52 0.0 0.4+ 200307 695 0.1- 0.1+
200119 711 0.2- 0.6+ 200130 I52 0.1+ 0.0 200307 695 0.0 0.1-
200119 711 0.0 0.8+ 200130 I52 0.1+ 0.0 200307 695 0.2- 0.0
200120 I52 0.9+ 0.7- 200130 I52 0.1- 0.3-
Ephemeris:
2020 BG1 a,e,i = 1.23, 0.25, 9 q = 0.9137
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 01 10 00 48 07.3 +00 48 07 1.3301 1.5362 81.7 39.3 25.2
...
2021 01 25 01 14 58.0 +05 07 55 1.4735 1.5349 74.3 38.1 25.4
...
2021 02 02 01 30 11.0 +07 22 03 1.5456 1.5313 70.5 37.4 25.5
...
2021 02 08 01 42 00.2 +09 00 25 1.5974 1.5272 67.8 36.7 25.5
2021 02 09 01 44 00.5 +09 16 37 1.6059 1.5264 67.3 36.6 25.5
2021 02 10 01 46 01.4 +09 32 46 1.6142 1.5256 66.9 36.5 25.5
...
2021 02 16 01 58 19.4 +11 08 22 1.6630 1.5200 64.2 35.8 25.6
...
2021 02 24 02 15 17.6 +13 12 11 1.7241 1.5108 60.7 34.8 25.6
...
2021 03 11 02 48 56.1 +16 50 57 1.8254 1.4881 54.5 32.9 25.7
A. U. Tomatic (C) Copyright 2021 MPC M.P.E.C. 2021-C100
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