MPEC 2021-B73 : 2021 BS1
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M.P.E.C. 2021-B73 Issued 2021 January 19, 16:07 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 BS1
Observations:
K21B01S C2021 01 14.57122 17 10 28.32 +07 58 26.2 19.5 RVEB073I41
K21B01S C2021 01 14.57604 17 10 28.51 +07 58 21.6 19.6 RVEB073I41
K21B01S C2021 01 14.57845 17 10 28.63 +07 58 20.7 19.9 RVEB073I41
K21B01S C2021 01 16.56919 17 12 17.65 +07 21 50.6 19.2 RVEB073I41
K21B01S C2021 01 16.57391 17 12 17.96 +07 21 44.4 19.6 RVEB073I41
K21B01S C2021 01 16.57630 17 12 18.05 +07 21 42.9 19.3 RVEB073I41
K21B01S C2021 01 17.57190 17 13 19.88 +07 02 07.1 19.72rVEB073I41
K21B01S C2021 01 17.57431 17 13 20.02 +07 02 04.1 19.72rVEB073I41
K21B01S* C2021 01 18.57164017 14 26.80 +06 41 36.1 19.85rUEB073I41
K21B01S C2021 01 18.57404117 14 26.97 +06 41 33.4 19.77rUEB073I41
K21B01S C2021 01 18.57645917 14 27.11 +06 41 30.3 19.83rUEB073I41
Observer details:
I41 Palomar Mountain--ZTF. Observers B. T. Bolin, Z. T. F. Collaboration.
Measurers B. T. Bolin, W.-H. Ip, Z.-Y. Lin, F. J. Masci. 1.2-m f/2.4
Oschin Schmidt + CCD, 1.2-m f/2.4 Schmidt.
Orbital elements:
2021 BS1 Earth MOID = 0.2335 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 55.11462 (2000.0) P Q
n 2.11662352 Peri. 332.59179 +0.96861525 +0.05125653
a 0.6007682 Node 27.93466 +0.15772953 +0.62951628
e 0.3322346 Incl. 31.27803 -0.19210907 +0.77529480
P 0.47 H 18.3 G 0.15 U 9
Residuals in seconds of arc
210114 I41 0.3+ 0.8- 210116 I41 0.6+ 0.7- 210118 I41 0.1+ 0.2-
210114 I41 0.2- 0.4- 210116 I41 0.1- 0.6+ 210118 I41 0.3+ 0.1+
210114 I41 0.1- 1.2+ 210117 I41 0.3- 0.0 210118 I41 0.1- 0.1+
210116 I41 0.0 0.1+ 210117 I41 0.4- 0.1-
Ephemeris:
2021 BS1 a,e,i = 0.60, 0.33, 31 q = 0.4012
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 12 20 17 21 42.2 +06 01 08 0.5773 0.5669 30.4 118.6 20.6
...
2021 01 04 17 06 46.0 +09 56 03 0.6357 0.6722 42.7 97.4 20.0
...
2021 01 12 17 08 36.7 +08 39 55 0.6589 0.7170 46.8 91.2 19.9
...
2021 01 18 17 13 47.3 +06 53 33 0.6687 0.7445 49.1 88.1 19.9
2021 01 19 17 14 56.3 +06 32 41 0.6698 0.7485 49.5 87.7 19.9
2021 01 20 17 16 10.0 +06 11 01 0.6706 0.7524 49.8 87.3 19.9
...
2021 01 26 17 25 09.6 +03 45 40 0.6721 0.7727 51.5 85.6 19.9
...
2021 02 03 17 41 29.5 -00 03 40 0.6660 0.7911 53.0 84.7 19.9
...
2021 02 18 18 27 04.0 -08 39 48 0.6403 0.7991 53.8 86.0 19.9
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-B73
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