MPEC 2023-O18 : 2020 XH1
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M.P.E.C. 2023-O18 Issued 2023 July 17, 14:08 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 XH1
Revision to MPEC 2020-X53
Additional Observations:
K20X01H C2020 12 07.33941603 17 36.618-15 35 59.27 16.27GVEO018F51
K20X01H C2020 12 07.36701603 18 52.790-15 19 27.51 VEO018F51
K20X01H C2020 12 07.38118203 19 31.530-15 11 00.48 16.44GVEO018F51
K20X01H C2023 06 27.50813320 44 57.623-15 49 23.36 22.19GVEO018F52
K20X01H C2023 06 27.51963520 44 58.363-15 49 18.51 22.96GVEO018F52
K20X01H C2023 06 27.53113820 44 59.109-15 49 13.81 23.13GVEO018F52
K20X01H C2023 06 27.54264120 44 59.854-15 49 09.62 22.42GVEO018F52
K20X01H C2023 07 09.51570721 00 43.911-14 14 10.08 21.58GVEO018F51
K20X01H C2023 07 09.52678621 00 44.770-14 14 03.81 22.63GVEO018F51
K20X01H C2023 07 09.53939321 00 45.792-14 13 56.37 21.72GVEO018F51
K20X01H C2023 07 09.55056121 00 46.659-14 13 49.97 21.85GVEO018F51
K20X01H C2023 07 12.46878721 05 25.183-13 43 59.12 21.78GVEO018F52
K20X01H C2023 07 12.48094721 05 26.258-13 43 51.18 22.23GVEO018F52
K20X01H C2023 07 12.49311621 05 27.314-13 43 43.20 21.67GVEO018F52
K20X01H C2023 07 12.50528821 05 28.401-13 43 35.33 21.44GVEO018F52
K20X01H C2023 07 15.49331521 10 49.031-13 08 21.09 20.90wXEO018F51
K20X01H C2023 07 15.50613421 10 50.346-13 08 11.01 21.19wXEO018F51
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, P.
Minguez, A. Schultz, I. Smith. Measurers S. Chastel, J. Fairlamb, M.
Huber, Y. Ramanjooloo, R. Wainscoat, R. Weryk, K. Chambers, T. de Boer, J.
Bulger, H. Gao, C.-C. Lin, T. Lowe, E. Magnier, P. Minguez, A. Schultz, I.
Smith. 1.8-m Ritchey-Chretien + CCD.
F52 Pan-STARRS 2, Haleakala. Observers J. Bulger, K. Chambers, T. Dukes, T.
Lowe, P. Minguez, A. Schultz, I. Smith. Measurers S. Chastel, J.
Fairlamb, M. Huber, Y. Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m
Ritchey-Chretien + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
201207 F51 0.00+ 0.00+ 230715 F51 0.24+ 0.07+ MPO750185 +0.00 days
Orbital elements:
2020 XH1 Earth MOID = 0.0062 AU
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Veres
M 288.36838 (2000.0) P Q
n 0.34019008 Peri. 208.59539 +0.93695219 -0.34945259
a 2.0323022 Node 171.85779 +0.32307305 +0.86416684
e 0.5829175 Incl. 0.75361 +0.13320806 +0.36207534
P 2.90 H 22.98 G 0.15 U 0
Residuals in seconds of arc
201206 T05 0.3- 0.0 201207 Q38 1.0+ 1.0+ 201213 G17 0.1- 0.2-
201206 T05 0.2+ 0.2- 201207 P93 0.8+ 0.0 201214 G96 0.1- 0.1-
201206 T05 0.1+ 0.1- 201207 P93 1.4+ 0.4+ 201214 G96 0.1- 0.0
201206 T05 0.3- 0.3- 201207 P93 0.4+ 0.8- 201214 G96 0.2- 0.0
201207 807 0.2+ 0.1- 201207 P93 0.8+ 0.2- 201214 G96 0.1+ 0.0
201207 807 0.3+ 0.0 201207 P93 1.0+ 0.1+ 201214 807 0.2- 0.0
201207 807 0.0 0.3- 201207 G33 1.0- 0.6+ 201214 807 0.2- 0.1-
201207 807 0.4+ 0.0 201207 G33 1.2- 1.2+ 201214 807 0.2- 0.1-
201207 807 0.2+ 0.1- 201207 G33 1.1- 0.9+ 201214 807 0.2- 0.2-
201207 807 0.4+ 0.0 201207 G33 1.4- 1.0+ 201214 I52 0.0 0.1-
201207 I41 (1.6+ 0.0 ) 201207 G33 0.6- 0.4+ 201214 I52 0.0 0.0
201207 I41 (1.8+ 0.2-) 201208 G96 0.3- 0.1- 201214 703 0.0 0.1+
201207 I41 (2.6+ 0.2-) 201208 G96 0.4- 0.2- 201214 703 0.6+ 0.0
201207 I41 (1.7+ 0.7-) 201208 G96 0.1- 0.2- 201214 703 0.2+ 0.3+
201207 I41 (1.2+ 0.6+) 201208 G96 0.1+ 0.1+ 201214 703 0.9- 0.6+
201207 I41 (1.3+ 0.4+) 201209 807 0.2+ 0.2+ 201214 I52 0.0 0.1-
201207 703 0.4+ 0.3+ 201209 807 0.3+ 0.1+ 201214 I52 0.1+ 0.2-
201207 703 0.8- 0.2- 201209 807 0.2+ 0.1+ 201214 T08 0.5- 0.4-
201207 I41 (3.8+ 0.8-) 201209 W88 0.2+ 0.1+ 201214 T08 0.1+ 0.2-
201207 I41 (2.2+ 1.4-) 201209 W88 0.0 0.0 201214 T08 0.1+ 0.3+
201207 703 0.1+ 0.3+ 201209 W88 0.2+ 0.3+ 201214 T08 0.3+ 0.3+
201207 703 0.5- 0.0 201209 W88 0.1- 0.2- 201215 T05 0.7+ 0.1-
201207 F51 0.3+ 0.2+ 201209 T08 0.0 0.1- 201215 T05 0.2- 0.0
201207 718 0.6- 0.7- 201209 T08 0.0 0.1- 201215 T05 0.0 0.1-
201207 718 0.6- 0.7- 201209 T08 0.1+ 0.1- 201215 T05 0.2- 0.3+
201207 718 0.7- 0.9- 201210 807 0.2+ 0.3+ 201215 Z80 0.5- 0.0
201207 718 0.1- 0.9- 201210 807 0.2+ 0.1+ 201215 Z80 0.2- 0.0
201207 718 0.4- 0.1- 201210 807 0.0 0.1+ 201215 Z80 0.3+ 0.3-
201207 718 0.4- 0.6+ 201210 807 0.2- 0.2- 201216 807 0.0 0.3-
201207 718 0.3+ 0.3- 201210 807 0.1- 0.0 201216 807 0.2+ 0.2-
201207 T05 0.3- 0.5- 201210 807 0.2+ 0.1+ 201216 807 0.0 0.3-
201207 T05 0.4- 0.4- 201210 H45 0.5+ 0.0 201216 I52 0.1- 0.3-
201207 F51 0.2+ 0.1+ 201210 H45 0.3+ 0.3+ 201216 I52 0.1+ 0.3-
201207 F51 0.1+ 0.0 201210 H45 0.1+ 0.2+ 201216 I52 0.3+ 0.1+
201207 T05 0.1- 0.3- 201210 H45 0.1+ 0.2+ 201216 I52 0.1- 0.2-
201207 T05 0.0 0.1- 201210 H45 0.0 0.0 201218 W88 0.0 0.1+
201207 Q70 0.1+ 0.9- 201210 H45 0.1+ 0.0 201218 W88 0.1- 0.5+
201207 Q70 1.0+ 1.7+ 201210 T05 0.1- 0.1- 201220 I41 0.2+ 0.4+
201207 Q70 1.3+ 0.9+ 201210 T08 0.0 0.2- 201220 I41 0.1+ 0.4+
201207 T05 0.4+ 0.3+ 201210 T08 0.1+ 0.1+ 201220 I41 0.4+ 0.3+
201207 Q70 0.9+ 0.0 201210 T05 0.0 0.1- 201220 I41 0.1+ 0.3+
201207 Q70 0.3+ 0.2+ 201210 T08 0.0 0.1- 201222 807 0.1+ 0.2-
201207 Q70 0.7+ 0.5+ 201210 T05 0.1+ 0.2- 201222 807 0.0 0.2-
201207 Q70 0.4+ 0.7+ 201210 T08 0.2- 0.3- 201222 807 0.3+ 0.0
201207 T05 0.0 0.3- 201210 T05 0.1+ 0.0 201222 807 0.0 0.3-
201207 Q70 0.4+ 0.5- 201211 W46 0.3- 0.2- 201223 G96 0.2- 0.2+
201207 Q70 1.2+ 1.2+ 201211 W46 0.1+ 0.2- 201223 G96 0.1+ 0.2-
201207 Q70 0.1- 0.3+ 201211 W46 0.6+ 0.3- 201223 G96 0.1- 0.2+
201207 Q70 0.3+ 0.3+ 201211 W88 0.2+ 0.1+ 201223 G96 0.4+ 0.4-
201207 E23 0.2+ 0.4+ 201211 W88 0.4+ 0.2+ 230627 F52 0.2- 0.1+
201207 E23 0.0 0.3+ 201211 W88 0.2+ 0.5+ 230627 F52 0.1- 0.4+
201207 E23 0.2+ 0.6+ 201211 W88 0.2- 0.2- 230627 F52 0.1+ 0.4+
201207 E23 0.2+ 0.4+ 201211 W88 0.0 0.0 230627 F52 0.3+ 0.0
201207 E23 0.5+ 0.8+ 201211 W88 0.2- 0.0 230709 F51 0.0 0.0
201207 E23 0.1+ 0.6+ 201211 W88 0.1- 0.3+ 230709 F51 0.3- 0.1-
201207 E23 0.1- 0.2+ 201211 T05 0.1+ 0.3- 230709 F51 0.0 0.0
201207 E23 0.4+ 0.6+ 201211 T05 0.2- 0.1- 230709 F51 0.2- 0.1-
201207 E23 0.5+ 0.4+ 201211 T05 0.2- 0.3- 230712 F52 0.1+ 0.0
201207 900 0.4- 0.2- 201211 T05 0.1+ 0.3- 230712 F52 0.1+ 0.0
201207 900 0.3- 0.6- 201212 T05 0.2- 0.2- 230712 F52 0.2- 0.1+
201207 Q38 1.0+ 0.9+ 201212 T05 0.1- 0.1- 230712 F52 0.1+ 0.0
201207 Q38 1.5+ 1.4+ 201212 T05 0.1- 0.0 230715 F51 0.0 0.1-
201207 Q38 0.5+ 0.5+ 201213 G17 0.1- 0.5- 230715 F51 0.2+ 0.2+
201207 Q38 0.3+ 1.0+ 201213 G17 0.3- 0.1-
Ephemeris:
2020 XH1 a,e,i = 2.03, 0.58, 1 q = 0.8476
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 06 17 20 32 44.0 -16 54 26 0.5793 1.5017 138.9 26.4 23.9
...
2023 07 02 20 50 27.3 -15 17 18 0.3985 1.3728 148.7 22.6 22.8
...
2023 07 10 21 01 28.0 -14 09 13 0.3125 1.3036 153.4 20.5 22.0
...
2023 07 16 21 11 47.8 -13 01 29 0.2525 1.2518 156.3 19.0 21.4
2023 07 17 21 13 48.7 -12 47 57 0.2429 1.2432 156.7 18.9 21.3
2023 07 18 21 15 56.5 -12 33 34 0.2334 1.2347 157.1 18.7 21.2
...
2023 07 24 21 32 06.5 -10 41 55 0.1785 1.1837 158.4 18.4 20.6
...
2023 08 01 22 12 39.3 -05 47 05 0.1120 1.1173 154.7 22.8 19.6
...
2023 08 16 04 04 22.7 +26 22 04 0.06009 1.0025 78.4 98.2 20.4
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-O18
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