[Iaude] MPEC X284: 2020 XJ15 [a=2.06,e=0.42,i=4.4,H=21.42]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Thu Dec 14 09:11:03 EST 2023
M.P.E.C. 2023-X284 Issued 2023 December 14, 14:09 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 at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2020 XJ15
Revision to MPEC 2021-F120
Additional Observations:
K20X15J C2023 11 11.54325707 44 04.533+29 09 45.90 23.02GVEX284F52
K20X15J C2023 11 11.55683007 44 06.264+29 09 45.09 23.10GVEX284F52
K20X15J C2023 12 09.54130608 42 57.053+28 00 08.56 22.01GVEX284F52
K20X15J C2023 12 09.55266608 42 58.336+28 00 05.98 21.86GVEX284F52
K20X15J C2023 12 09.56429908 42 59.653+28 00 03.38 22.06GVEX284F52
K20X15J KC2023 12 11.38314908 46 37.47 +27 52 52.3 21.8 GVEX284H21
K20X15J KC2023 12 11.39037008 46 38.29 +27 52 50.6 22.0 GVEX284H21
K20X15J KC2023 12 11.39816908 46 39.16 +27 52 48.7 22.0 GVEX284H21
K20X15J KC2023 12 13.50401708 50 49.370+27 44 10.48 21.68GVEX284F52
Observer details:
F52 Pan-STARRS 2, Haleakala. Observers J. Herman, T. Lowe, P. Minguez, A.
Schultz, I. Smith. Measurers K. Chambers, T. de Boer, J. Fairlamb, H.
Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
Weryk. 1.8-m Ritchey-Chretien + CCD.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers T. Linder, R. Holmes, L. Horn. 1.3-m f/4.0 astrograph + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
231111 F52 0.02- 0.01- 231213 F52 0.04- 0.01- MPO782727 +0.00 days
Orbital elements:
2020 XJ15 Earth MOID = 0.2057 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5 Veres
M 304.83791 (2000.0) P Q
n 0.33303652 Peri. 182.68097 -0.91475291 -0.40257344
a 2.0613013 Node 333.49834 +0.37208207 -0.80657865
e 0.4192175 Incl. 4.38074 +0.15742315 -0.43285737
P 2.96 H 21.42 G 0.15 U 0
Residuals in seconds of arc
201212 V00 0.1+ 0.4- 210211 G96 0.1- 0.0 210407 G96 0.0 0.1+
201212 V00 0.1+ 0.2- 210211 G96 0.1+ 0.1- 210407 G96 0.1- 0.1-
201212 V00 0.1+ 0.1+ 210211 G96 0.0 0.1+ 210407 G96 0.1+ 0.1-
201212 V00 0.0 0.0 210211 I52 0.1- 0.1- 210511 F51 0.1+ 0.3-
201218 G96 0.4+ 0.2- 210211 I52 0.2+ 0.0 210511 F51 0.0 0.1+
201218 G96 0.5+ 0.8+ 210212 I52 0.1+ 0.1- 231111 F52 0.1- 0.2-
201218 G96 0.6- 0.1+ 210212 I52 0.0 0.0 231111 F52 0.2+ 0.0
201218 G96 0.5- 0.5+ 210303 I52 0.1+ 0.0 231209 F52 0.0 0.1+
210104 G96 0.1+ 0.2+ 210303 I52 0.1+ 0.2- 231209 F52 0.1- 0.0
210104 G96 0.0 0.2+ 210303 I52 0.0 0.0 231209 F52 0.1- 0.0
210104 G96 0.2- 0.0 210318 G96 0.1- 0.3- 231211 H21 0.1+ 0.0
210104 G96 0.1- 0.3+ 210318 G96 0.0 0.1- 231211 H21 0.1+ 0.1+
210106 G96 0.1- 0.0 210318 G96 0.1+ 0.0 231211 H21 0.0 0.1+
210106 G96 0.2- 0.1+ 210318 G96 0.0 0.2+ 231213 F52 0.1- 0.1+
210106 G96 0.1- 0.1- 210407 G96 0.4- 0.8+
Ephemeris:
2020 XJ15 a,e,i = 2.06, 0.42, 4 q = 1.1972
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 11 14 07 49 23.6 +29 06 15 0.8303 1.5525 116.8 34.7 23.4
...
2023 11 29 08 21 19.3 +28 34 28 0.6680 1.4733 124.7 33.4 22.8
...
2023 12 07 08 37 49.0 +28 09 25 0.5907 1.4328 129.0 32.3 22.4
...
2023 12 13 08 49 49.3 +27 46 17 0.5371 1.4036 132.3 31.2 22.1
2023 12 14 08 51 47.2 +27 42 01 0.5286 1.3988 132.9 31.1 22.1
2023 12 15 08 53 44.4 +27 37 38 0.5202 1.3941 133.4 30.9 22.0
...
2023 12 21 09 05 13.3 +27 08 14 0.4719 1.3664 136.8 29.6 21.8
...
2023 12 29 09 19 50.0 +26 19 13 0.4138 1.3317 141.3 27.5 21.4
...
2024 01 13 09 44 22.0 +24 04 06 0.3241 1.2749 150.1 22.6 20.6
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-X284
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