[Iaude] MPEC W77: 2020 XM1 [a=0.82,e=0.33,i=34.4,H=21.54]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Tue Nov 21 10:47:28 EST 2023
M.P.E.C. 2023-W77 Issued 2023 November 21, 15:46 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 XM1
Revision to MPEC 2020-X59
Additional Observations:
K20X01M C2023 11 20.09630600 24 39.530-26 44 15.43 18.82oVEW077W68
K20X01M C2023 11 20.09952600 24 37.963-26 43 15.67 18.67oVEW077W68
K20X01M C2023 11 20.10474500 24 35.474-26 41 40.20 18.84oVEW077W68
K20X01M C2023 11 20.11459200 24 30.665-26 38 40.81 18.84oVEW077W68
K20X01M KC2023 11 20.56412300 21 11.18 -24 24 18.2 18.9 GVEW077474
K20X01M KC2023 11 20.56537700 21 10.62 -24 23 55.9 18.7 GVEW077474
K20X01M KC2023 11 20.56663000 21 10.09 -24 23 33.8 18.8 GVEW077474
K20X01M KC2023 11 20.56788300 21 09.54 -24 23 11.5 18.8 GVEW077474
K20X01M 0B2023 11 20.79333 00 19 39.46 -23 17 58.2 19.3 VZEW077M49
K20X01M 0B2023 11 20.79836 00 19 37.25 -23 16 31.1 18.9 VZEW077M49
K20X01M 0B2023 11 20.80335 00 19 35.00 -23 15 04.4 19.4 VZEW077M49
K20X01M |C2023 11 21.02311000 18 06.950-22 11 32.20 18.8 VuEW077807
K20X01M |C2023 11 21.02638000 18 05.550-22 10 36.10 18.6 VuEW077807
K20X01M |C2023 11 21.02965000 18 04.180-22 09 40.10 18.8 VuEW077807
K20X01M KC2023 11 21.13942 00 17 21.706-21 39 38.27 20.4 GVEW077U52
K20X01M KC2023 11 21.14299 00 17 20.378-21 38 37.75 VEW077U52
K20X01M KC2023 11 21.38240800 15 47.13 -20 29 32.4 18.9 GVEW077474
K20X01M KC2023 11 21.38366200 15 46.64 -20 29 11.2 18.9 GVEW077474
K20X01M KC2023 11 21.38491400 15 46.13 -20 28 50.1 19.0 GVEW077474
K20X01M KC2023 11 21.38616600 15 45.63 -20 28 29.2 19.0 GVEW077474
Observer details:
474 Mount John Observatory, Lake Tekapo. Observers A. C. Gilmore, P. M.
Kilmartin. Measurer P. M. Kilmartin. 1.0-m f/7.7 reflector + CCD.
807 Cerro Tololo Observatory, La Serena. Observers T. Linder, R. Holmes, L.
Horn. 0.61-m f/11 Ritchey-Chretien + CCD.
M49 IAS Remote Observatory, Hakos. Observers D. Husar, M. Junius. Measurer
D. Husar. 0.25-m f/4.5 reflector + CMO.
U52 Shasta Valley Observatory, Grenada. Observers J. E. Rogers, B. Haeusler.
Measurers J. E. Rogers, D. Parrott. 0.30-m f/5.2 Helin Telescope + CCD.
W68 ATLAS Chile, Rio Hurtado. Observers L. Denneau, R. Siverd, J. Tonry, H.
Weiland. Measurers L. Denneau, N. Erasmus, A. Fitzsimmons, A. Lawrence,
J. Robinson, R. Siverd, J. Tonry, H. Weiland. 0.5-m Reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
231120 W68 1.40+ 1.41+ 231121 474 1.25+ 1.54+ MPO600179 +0.44 days
Orbital elements:
2020 XM1 Earth MOID = 0.0641 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5 Veres
M 41.03293 (2000.0) P Q
n 1.31922384 Peri. 202.14647 -0.25498123 +0.84493178
a 0.8233612 Node 56.31076 -0.78062265 +0.10708321
e 0.3306811 Incl. 34.40839 -0.57062497 -0.52404529
P 0.75 H 21.54 G 0.15 U 2
Residuals in seconds of arc
201206 G96 0.1- 0.2- 201208 V06 0.2- 0.5+ 231120 474 0.1- 0.2+
201206 G96 0.0 0.5- 201208 V06 0.3+ 0.0 231120 474 0.1+ 0.0
201206 G96 0.1+ 0.4- 201214 V06 0.2+ 0.1+ 231120 474 0.0 0.0
201206 G96 0.1+ 0.1- 201214 V06 0.3+ 0.1- 231120 M49 0.0 0.1+
201206 I52 0.3- 0.1+ 201214 V06 0.4- 0.1- 231120 M49 0.2+ 0.5-
201206 I52 0.3- 0.2- 201214 V06 0.1+ 0.0 231120 M49 0.4- 0.6-
201206 I52 0.2- 0.2+ 201219 V06 0.1+ 0.2+ 231121 807 0.1- 0.1+
201206 F52 0.0 0.2+ 201219 V06 0.2+ 0.3- 231121 807 0.2- 0.1+
201206 I52 0.1+ 0.4- 201219 V06 0.4- 0.1- 231121 807 0.1+ 0.0
201206 691 0.2+ 0.6- 201219 V06 0.2+ 0.2- 231121 U52 0.6- 0.1+
201206 F52 0.2+ 0.0 201219 691 (1.6+ 0.3+) 231121 U52 1.5+ 0.0
201206 691 0.4- 0.2- 201219 691 (1.4+ 0.1+) 231121 474 0.1+ 0.2-
201206 F52 0.6+ 0.4+ 231120 W68 0.5- 1.8- 231121 474 0.3+ 0.1-
201206 F52 0.0 0.3+ 231120 W68 0.5- 0.4- 231121 474 0.2+ 0.0
201207 V06 0.2- 0.1- 231120 W68 0.2+ 0.3+ 231121 474 0.2+ 0.2-
201207 V06 0.0 0.3- 231120 W68 0.3- 1.0+
201208 V06 0.2- 0.3- 231120 474 0.1+ 0.1+
Ephemeris:
2020 XM1 a,e,i = 0.82, 0.33, 34 q = 0.5511
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 10 22 09 40 22.9 -59 28 16 0.2901 0.9176 66.2 97.0 22.1
...
2023 11 06 06 31 04.8 -72 13 36 0.1599 0.9885 84.3 86.4 20.6
...
2023 11 14 01 45 40.2 -57 44 19 0.1130 1.0192 102.0 71.7 19.4
...
2023 11 20 00 25 25.6 -27 13 40 0.1127 1.0389 113.8 60.5 19.0
2023 11 21 00 18 15.8 -22 18 34 0.1162 1.0419 114.6 59.5 19.1
2023 11 22 00 12 05.1 -17 41 13 0.1206 1.0448 115.1 58.9 19.2
...
2023 11 28 23 48 22.1 +03 06 17 0.1604 1.0606 113.4 58.7 19.8
...
2023 12 06 23 34 52.1 +17 37 36 0.2316 1.0771 107.3 60.9 20.7
...
2023 12 21 23 30 36.8 +29 42 39 0.3766 1.0940 96.8 63.3 21.9
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-W77
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