MPEC 2020-X81 : 2020 XJ2
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M.P.E.C. 2020-X81 Issued 2020 December 9, 09:06 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 XJ2
Observations:
K20X02J* C2020 12 07.23043902 31 28.873+29 39 41.38 20.68wUEX081F51
K20X02J C2020 12 07.25736802 31 46.594+29 38 11.33 20.83wUEX081F51
K20X02J C2020 12 07.27078502 31 55.396+29 37 25.97 20.97wUEX081F51
K20X02J KC2020 12 08.41444 02 44 48.72 +28 28 24.7 20.9 RoEX081291
K20X02J KC2020 12 08.41656 02 44 50.12 +28 28 16.6 21.0 RoEX081291
K20X02J KC2020 12 08.41869 02 44 51.54 +28 28 08.0 21.5 RoEX081291
K20X02J 1C2020 12 08.75458 02 48 44.92 +28 07 08.8 20.6 VVEX081033
K20X02J 1C2020 12 08.75632 02 48 46.06 +28 07 02.6 20.3 VVEX081033
K20X02J KC2020 12 09.11826502 52 47.38 +27 44 35.2 21.1 VqEX081858
K20X02J KC2020 12 09.12756902 52 53.35 +27 43 59.8 20.8 VqEX081858
K20X02J KC2020 12 09.36433802 55 23.85 +27 28 45.3 20.62GVEX081I52
K20X02J KC2020 12 09.36601702 55 24.95 +27 28 38.8 20.29GVEX081I52
K20X02J KC2020 12 09.36769902 55 26.03 +27 28 31.9 20.78GVEX081I52
K20X02J KC2020 12 09.36938002 55 27.15 +27 28 25.2 20.36GVEX081I52
Observer details:
033 Karl Schwarzschild Observatory, Tautenburg. Observers S. Melnikov, C.
Hoegner, B. Stecklum. Measurer B. Stecklum. 1.34-m f/3 Schmidt + CCD.
291 LPL/Spacewatch II. Observer M. T. Read. 1.8-m f/2.7 reflector + CCD.
858 Tebbutt Observatory, Edgewood. Observer F. B. Zoltowski. 0.51-m Schmidt-
Cassegrain + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, T. Lowe, A. Schultz, M.
Willman. Measurers K. Chambers, S. Chastel, T. de Boer, L. Denneau, J.
Fairlamb, H. Flewelling, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo,
R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + 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:
2020 XJ2 Earth MOID = 0.0948 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Bell
M 5.06276 (2000.0) P Q
n 0.24573193 Peri. 158.88564 +0.49145775 -0.85719276
a 2.5244202 Node 261.39186 +0.77507233 +0.51108991
e 0.5761637 Incl. 8.95558 +0.39715509 +0.06330620
P 4.01 H 24.29 G 0.15 U 8
Residuals in seconds of arc
201207 F51 0.0- 0.1- 201208 291 0.1- 0.1- 201209 858 0.2+ 0.3-
201207 F51 0.0- 0.1- 201208 291 0.1- 0.5- 201209 I52 0.3- 0.1-
201207 F51 0.0- 0.1+ 201208 033 0.0+ 0.2+ 201209 I52 0.1- 0.1+
201207 F51 0.0- 0.1+ 201208 033 0.1+ 0.3+ 201209 I52 0.0+ 0.0+
201207 F51 0.1+ 0.0+ 201209 858 0.4- 0.4+ 201209 I52 0.5+ 0.0-
201207 F51 0.0+ 0.0+ 201209 858 0.4- 0.4+
201208 291 0.0+ 0.3- 201209 858 0.2+ 0.3-
Ephemeris:
2020 XJ2 a,e,i = 2.52, 0.58, 9 q = 1.0699
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 11 09 22 45 08.5 +34 50 13 0.1749 1.0921 121.5 50.7 22.6
...
2020 11 24 00 09 21.3 +36 04 43 0.1276 1.0704 127.9 46.7 21.7
...
2020 12 02 01 30 40.2 +33 43 07 0.1122 1.0723 138.3 37.7 21.2
...
2020 12 08 02 40 12.2 +28 54 12 0.1098 1.0799 148.2 28.8 20.9
2020 12 09 02 51 25.8 +27 52 21 0.1103 1.0817 149.7 27.3 20.9
2020 12 10 03 02 23.6 +26 47 53 0.1112 1.0836 151.3 25.9 20.9
...
2020 12 16 04 00 39.4 +20 01 26 0.1218 1.0980 157.9 19.7 20.9
...
2020 12 24 04 56 24.2 +12 20 34 0.1493 1.1244 159.3 18.0 21.4
...
2021 01 08 05 54 48.7 +04 56 13 0.2294 1.1934 153.7 21.4 22.5
M. P. C. Staff (C) Copyright 2020 MPC M.P.E.C. 2020-X81
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