MPEC 2023-C54 : 2020 BR13
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M.P.E.C. 2023-C54 Issued 2023 February 9, 14:05 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets, routine data on comets and natural satellites,
and occasional editorial announcements. 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 BR13
Revision to MPEC 2020-B301
Additional Observations:
K20B13R C2011 01 26.36997207 52 10.432-18 23 28.08 20.55GVEC054F51
K20B13R C2011 01 26.38616607 52 10.183-18 22 43.35 20.83GVEC054F51
K20B13R C2011 02 02.32779907 51 53.735-12 54 56.32 20.63GVEC054F51
K20B13R C2011 02 02.34062007 51 53.683-12 54 19.82 20.93GVEC054F51
K20B13R C2014 01 11.45197208 16 05.964-27 22 09.48 22.20GVEC054F51
K20B13R C2014 01 11.46466908 16 05.669-27 21 45.26 21.23GVEC054F51
K20B13R C2020 02 05.40482508 48 31.547-09 27 04.67 20.94GVEC054F52
K20B13R C2020 02 05.41615208 48 31.161-09 26 34.92 21.03GVEC054F52
K20B13R KC2023 02 08.35648309 09 52.290-06 37 27.90 20.96GVEC054I52
K20B13R KC2023 02 08.36376609 09 51.990-06 37 09.50 21.02GVEC054I52
K20B13R KC2023 02 08.37106009 09 51.700-06 36 50.90 21.25GVEC054I52
K20B13R KC2023 02 08.37831909 09 51.420-06 36 32.70 20.45GVEC054I52
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, A.
Schultz, I. Smith. Measurers S. Chastel, J. Fairlamb, M. Huber, Y.
Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
F52 Pan-STARRS 2, Haleakala. Observers J. Bulger, K. Chambers, T. Dukes, T.
Lowe, A. Schultz, I. Smith. Measurers S. Chastel, J. Fairlamb, M. Huber,
Y. Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer J. K. Hogan. Measurers
E. J. Christensen, D. Fay, J. B. Fazekas, D. C. Fuls, A. R. Gibbs, A. D.
Grauer, H. Groeller, J. K. Hogan, R. A. Kowalski, S. M. Larson, G. J.
Leonard, D. Rankin, R. L. Seaman, A. Serrano, F. C. Shelly, K. W.
Wierzchos. 1.0-m prime focus + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
110126 F51 1.84- 0.22- 230208 I52 0.49- 0.04- MPO733763 +0.30 days
Orbital elements:
2020 BR13 Earth MOID = 0.4117 AU
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Veres
M 35.71341 (2000.0) P Q
n 0.32943533 Peri. 267.05101 +0.34203218 -0.93365462
a 2.0762960 Node 161.80782 +0.93898177 +0.33519421
e 0.4199565 Incl. 19.90927 +0.03643102 +0.12622953
P 2.99 H 20.95 G 0.15 U 1
Residuals in seconds of arc
110126 F51 0.1+ 0.0 200129 F52 0.0 0.3- 200205 807 0.9+ 0.1+
110126 F51 0.1- 0.0 200129 F52 0.1+ 0.1+ 200205 F52 0.0 0.2-
110202 F51 0.0 0.1- 200129 F52 0.1- 0.1- 200205 F52 0.1+ 0.0
110202 F51 0.0 0.2- 200130 I52 0.3- 0.7+ 200217 G96 0.2- 0.2-
140111 F51 0.1+ 0.4+ 200130 I52 0.1+ 0.8+ 200217 G96 0.2+ 0.3+
140111 F51 0.3+ 0.2+ 200130 I52 0.1- 0.1- 200217 G96 0.3- 0.0
200125 F51 0.0 0.1+ 200130 I52 0.2+ 0.2- 200217 G96 0.2- 0.1+
200125 F51 0.0 0.1+ 200201 807 0.2+ 0.3- 200225 807 0.2- 0.1-
200125 F51 0.1+ 0.1+ 200201 807 0.0 0.2- 200225 807 0.3- 0.1-
200125 F51 0.0 0.1- 200201 807 0.1+ 0.2- 200225 807 0.1- 0.3-
200126 I52 0.8- 0.1+ 200204 807 0.3+ 0.0 230208 I52 0.1- 0.7-
200126 I52 0.2- 0.1+ 200204 807 0.3+ 0.1- 230208 I52 0.1- 0.4-
200126 I52 1.1- 0.3- 200204 807 0.1+ 0.0 230208 I52 0.1+ 0.1+
200126 I52 0.4- 1.3- 200205 807 0.2+ 0.2+ 230208 I52 0.3+ 0.2+
Ephemeris:
2020 BR13 a,e,i = 2.08, 0.42, 20 q = 1.2043
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 01 10 09 25 00.8 -23 20 02 0.5188 1.3536 125.7 36.1 21.7
...
2023 01 25 09 18 58.8 -16 03 12 0.5088 1.4224 142.5 24.9 21.4
...
2023 02 02 09 13 52.5 -10 57 48 0.5175 1.4620 151.8 18.6 21.3
...
2023 02 08 09 10 05.4 -06 52 04 0.5327 1.4927 157.6 14.6 21.3
2023 02 09 09 09 29.9 -06 10 41 0.5361 1.4979 158.4 14.0 21.3
2023 02 10 09 08 55.3 -05 29 20 0.5396 1.5031 159.1 13.5 21.3
...
2023 02 16 09 05 53.5 -01 24 55 0.5661 1.5348 161.3 11.9 21.4
...
2023 02 24 09 03 22.3 +03 37 56 0.6149 1.5777 158.5 13.3 21.7
...
2023 03 11 09 04 32.0 +11 06 37 0.7450 1.6597 145.1 20.0 22.4
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-C54
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