MPEC 2023-O54 : 2020 BG3
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M.P.E.C. 2023-O54 Issued 2023 July 22, 14:14 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 BG3
Revision to MPEC 2020-B82
Additional Observations:
K20B03G 5C2015 05 24.08567 15 19 52.29 -25 49 56.7 23.7 EO054W84
K20B03G 5C2015 05 24.08884 15 19 52.06 -25 49 56.2 EO054W84
K20B03G 5C2015 05 24.09200 15 19 51.79 -25 49 55.8 EO054W84
K20B03G 5C2015 05 24.09516 15 19 51.55 -25 49 55.2 EO054W84
K20B03G 2C2023 07 17.20392504 13 10.264+14 33 34.02 21.1 GVEO054J04
K20B03G 2C2023 07 17.21128404 13 12.681+14 33 48.96 20.4 GVEO054J04
K20B03G 2C2023 07 17.21860204 13 15.105+14 34 03.66 20.3 GVEO054J04
Observer details:
J04 ESA Optical Ground Station, Tenerife. Observers P. Ruiz, M. Micheli, F.
Ocana, L. Conversi. Measurers M. Micheli, R. Kresken, F. Ocana, M.
Busch. 1.0-m f/4.4 reflector + CCD.
W84 Cerro Tololo-DECam. Observers L. Allen, D. Trilling, D. James, D.
Herrera, C. Fuentes, J. Rajagopal, T. Axelrod. Measurer F. Valdes. 4.0-m
CTIO reflector + DECam.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
150524 W84 0.06- 0.03- 230717 J04 0.24- 0.19- MPO750185 +0.30 days
Orbital elements:
2020 BG3 Earth MOID = 0.1526 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5 Veres
M 10.45814 (2000.0) P Q
n 0.26863817 Peri. 354.30036 +0.88421940 -0.45261199
a 2.3787981 Node 33.39483 +0.43638139 +0.71252258
e 0.6668394 Incl. 12.09400 +0.16651525 +0.53614734
P 3.67 H 19.16 G 0.15 U 1
Residuals in seconds of arc
150524 W84 0.1- 0.1+ 200120 033 0.2- 0.2- 200122 104 0.2+ 0.1-
150524 W84 0.2+ 0.1+ 200120 204 0.1- 0.1- 200124 I52 0.2- 0.2-
150524 W84 0.1- 0.0 200120 Z99 0.2+ 0.3+ 200124 I52 0.3+ 0.1+
150524 W84 0.1+ 0.1+ 200120 Z99 0.1+ 0.0 200124 I52 0.0 0.1+
200106 703 0.4- 0.3+ 200120 204 0.1+ 0.3- 200124 I52 0.0 0.3-
200106 703 1.6+ 0.4+ 200120 Z99 0.2+ 0.3- 200126 I52 0.1- 0.1+
200119 F51 0.2+ 0.2+ 200120 204 0.4- 0.2- 200126 I52 0.0 0.1-
200120 G96 0.1- 0.1+ 200121 734 0.6+ 0.1+ 200126 I52 0.1- 0.1-
200120 G96 0.2- 0.1- 200121 734 0.2- 0.5- 200126 I52 0.3- 0.1-
200120 G96 0.1- 0.1+ 200121 734 0.6+ 1.1+ 200127 F52 0.0 0.0
200120 H01 0.0 0.0 200121 734 0.6+ 1.3+ 200127 F52 0.1+ 0.1+
200120 H01 0.0 0.0 200121 246 0.8- 0.4+ 200127 F52 0.1+ 0.1+
200120 H01 0.0 0.0 200121 246 0.2+ 0.1+ 200127 F52 0.1+ 0.0
200120 H01 0.0 0.0 200121 246 0.3- 0.2- 200131 I52 0.1+ 0.0
200120 I52 0.1- 0.0 200121 246 0.2+ 0.0 200131 I52 0.8- 0.8-
200120 I52 0.0 0.1+ 200121 246 0.2+ 0.3+ 200131 I52 0.3+ 0.3+
200120 I52 0.2- 0.3- 200121 246 0.4+ 0.6+ 200131 I52 0.0 0.3+
200120 I52 0.1+ 0.3- 200121 246 0.4- 0.1+ 200203 I52 0.6+ 0.1+
200120 K87 0.1+ 0.2- 200121 246 0.6- 0.4+ 200203 I52 0.0 0.0
200120 K87 0.5- 0.5+ 200121 K87 0.5- 0.4- 200203 I52 0.5- 0.3-
200120 K87 0.0 0.9+ 200121 K87 0.1+ 0.4- 200206 G96 0.2+ 0.4+
200120 L01 0.6+ 0.0 200121 K87 0.3+ 0.2- 200206 G96 0.0 0.1+
200120 L01 0.1+ 0.5+ 200121 033 0.5- 0.4- 200206 G96 0.1+ 0.3-
200120 L01 0.3+ 0.4+ 200121 033 0.3- 0.2- 200206 G96 0.2+ 0.0
200120 L01 0.2+ 0.1- 200121 033 0.2- 0.1- 200317 V06 0.1- 0.3-
200120 J95 0.2- 0.3+ 200122 K96 0.1+ 0.2+ 200317 V06 0.2- 0.2-
200120 J95 0.1- 0.1+ 200122 K96 0.2+ 0.1+ 200317 V06 0.1+ 0.2-
200120 J95 0.0 0.1+ 200122 K96 0.2+ 0.2- 230717 J04 0.1- 0.2+
200120 033 0.3- 0.3- 200122 104 0.1- 0.3- 230717 J04 0.1- 0.2+
200120 033 0.4- 0.4- 200122 104 0.2- 0.1- 230717 J04 0.2+ 0.1+
Ephemeris:
2020 BG3 a,e,i = 2.38, 0.67, 12 q = 0.7925
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 06 22 01 55 57.8 -01 56 38 0.9198 1.0365 64.5 62.3 21.3
...
2023 07 07 03 17 02.8 +08 17 19 0.9230 0.9114 55.8 67.3 21.2
...
2023 07 15 04 01 02.1 +13 17 49 0.9566 0.8581 51.4 67.9 21.1
...
2023 07 21 04 34 00.0 +16 35 29 0.9942 0.8271 48.6 67.1 21.1
2023 07 22 04 39 28.7 +17 05 39 1.0014 0.8228 48.1 66.9 21.1
2023 07 23 04 44 56.9 +17 34 58 1.0088 0.8187 47.7 66.6 21.1
...
2023 07 29 05 17 35.1 +20 12 21 1.0576 0.8003 45.4 64.5 21.1
...
2023 08 06 06 00 19.5 +22 50 46 1.1318 0.7927 42.9 60.6 21.1
...
2023 08 21 07 16 01.7 +25 14 29 1.2831 0.8309 40.3 52.0 21.2
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-O54
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