[Iaude] MPEC X142: 2020 XF4 [a=1.05,e=0.23,i=3.0,H=27.4]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Sat Dec 12 23:32:07 EST 2020
M.P.E.C. 2020-X142 Issued 2020 December 13, 04:30 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 at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2020 XF4
Observations:
K20X04F C2020 12 05.43588 05 37 25.70 +09 39 21.5 VEX142G96
K20X04F C2020 12 05.44099 05 37 25.16 +09 39 17.0 21.9 GVEX142G96
K20X04F C2020 12 05.44611 05 37 24.59 +09 39 12.3 21.4 GVEX142G96
K20X04F* C2020 12 10.30036005 29 45.64 +08 06 45.3 20.09rUEX142I41
K20X04F C2020 12 10.30223005 29 45.07 +08 06 41.4 20.19rUEX142I41
K20X04F C2020 12 10.33938005 29 33.50 +08 05 30.3 21.07gUEX142I41
K20X04F C2020 12 10.34030005 29 33.22 +08 05 28.5 20.83gUEX142I41
K20X04F C2020 12 11.28426 05 26 18.09 +07 29 05.3 18.7 GVEX142U68
K20X04F C2020 12 11.28818 05 26 16.56 +07 28 54.4 18.7 GVEX142U68
K20X04F C2020 12 11.29182 05 26 15.09 +07 28 44.4 18.8 GVEX142U68
K20X04F C2020 12 11.29575 05 26 13.57 +07 28 35.6 18.8 GVEX142U68
K20X04F C2020 12 11.33827 05 25 56.29 +07 26 40.7 18.6 GVEX142U68
K20X04F C2020 12 11.34219 05 25 54.71 +07 26 30.1 18.6 GVEX142U68
K20X04F KC2020 12 12.92565005 16 13.45 +05 41 18.6 18.7 GVEX142J95
K20X04F KC2020 12 12.92998905 16 10.47 +05 40 54.2 18.8 GVEX142J95
K20X04F KC2020 12 12.93406605 16 07.69 +05 40 31.6 18.8 GVEX142J95
K20X04F KC2020 12 12.93811005 16 04.83 +05 40 08.8 19.1 GVEX142J95
K20X04F KC2020 12 12.95450205 15 52.80 +05 40 00.8 19.2 GVEX142B49
K20X04F KC2020 12 12.95973405 15 48.92 +05 39 31.7 18.8 GVEX142B49
K20X04F 2C2020 12 12.96571305 15 56.854+05 41 01.84 18.8 GVEX142J04
K20X04F 2C2020 12 12.96595305 15 56.678+05 41 00.64 18.8 GVEX142J04
K20X04F 2C2020 12 12.96619805 15 56.482+05 40 59.19 18.8 GVEX142J04
K20X04F KC2020 12 13.00156505 15 11.28 +05 34 55.6 18.9 GVEX142L01
K20X04F KC2020 12 13.00209205 15 10.90 +05 34 52.3 18.7 GVEX142L01
K20X04F KC2020 12 13.00313505 15 10.07 +05 34 46.3 19.0 GVEX142L01
K20X04F KC2020 12 13.00365705 15 09.71 +05 34 43.3 19.0 GVEX142L01
K20X04F KC2020 12 13.00457005 15 09.01 +05 34 37.8 19.0 GVEX142L01
K20X04F C2020 12 13.03549 05 14 44.00 +05 31 06.8 18.7 RoEX142K88
K20X04F C2020 12 13.03638 05 14 43.31 +05 31 01.3 18.8 RoEX142K88
K20X04F C2020 12 13.03815 05 14 42.06 +05 30 49.3 18.8 RoEX142K88
Observer details:
B49 Paus Observatory, Sabadell. Observer J. Camarasa. 0.30-m f/4 reflector +
CCD.
G96 Mt. Lemmon Survey. Observer T. A. Pruyne. Measurers D. Rankin, B. Gray,
F. C. Shelly. 1.5-m reflector + 10K CCD.
I41 Palomar Mountain--ZTF. Observers B. T. Bolin, Z. T. F. Collaboration.
Measurers B. T. Bolin, F. J. Masci. 1.2-m f/2.4 Schmidt.
J04 ESA Optical Ground Station, Tenerife. Observer D. Abreu. Measurers M.
Micheli, D. Koschny, L. Conversi, R. Kresken, A. Knofel, M. Busch, E.
Schwab. 1.0-m f/4.4 reflector + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.41-m f/6.3 Schmidt-Cassegrain
+ CCD.
K88 GINOP-KHK, Piszkesteto. Observer K. Sarneczky. 0.60-m Schmidt + CCD.
L01 Visnjan Observatory, Tican. Observers K. Korlevic, D. Pujagic. Measurer
D. Pujagic. 1.0-m f/2.9 reflector + CCD.
U68 JPL SynTrack Robotic Telescope, Auberry. Observers N. Saini, C. Zhai, R.
Trahan, M. Zhan, M. Shao. 0.28-m f/2.2 Schmidt + CCD.
Orbital elements:
2020 XF4 Earth MOID = 0.0006 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 300.01875 (2000.0) P Q
n 0.91029399 Peri. 84.73093 -0.98534127 -0.16243969
a 1.0544231 Node 85.91327 +0.12836634 -0.90719435
e 0.2287130 Incl. 2.99492 +0.11235953 -0.38808731
P 1.08 H 27.4 G 0.15 U 6
Residuals in seconds of arc
201205 G96 0.2+ 0.3+ 201211 U68 0.7+ 0.8+ 201212 J04 0.0 0.2+
201205 G96 0.4+ 0.0 201211 U68 0.2+ 0.1+ 201212 J04 0.1- 0.1+
201205 G96 0.1+ 0.4- 201211 U68 0.6+ 0.3+ 201213 L01 0.1+ 0.1+
201210 I41 0.6- 0.0 201212 J95 0.2- 0.4+ 201213 L01 0.3+ 0.1-
201210 I41 0.5- 0.4- 201212 J95 0.1- 0.0 201213 L01 0.4- 0.1+
201210 I41 0.8- 0.1- 201212 J95 0.5+ 0.0 201213 L01 0.0 0.2+
201210 I41 0.7- 0.0 201212 J95 0.3- 0.4- 201213 L01 0.2- 0.2+
201211 U68 0.2+ 0.5+ 201212 B49 0.4+ 0.5- 201213 K88 0.2+ 0.2+
201211 U68 0.5+ 0.2- 201212 B49 0.7+ 0.1- 201213 K88 0.4- 0.2+
201211 U68 0.1+ 0.7- 201212 J04 0.1- 0.1+ 201213 K88 0.1+ 1.0-
Ephemeris:
2020 XF4 a,e,i = 1.05, 0.23, 3 q = 0.8133
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 11 13 05 35 27.7 +12 08 45 0.1397 1.1073 145.3 30.6 24.7
...
2020 11 28 05 40 10.7 +10 43 18 0.07316 1.0544 157.2 21.2 22.9
...
2020 12 06 05 37 03.1 +09 33 54 0.04079 1.0244 163.0 16.4 21.4
...
2020 12 12 05 22 39.4 +06 56 29 0.01743 1.0013 163.8 15.9 19.5
2020 12 13 05 15 21.7 +05 42 02 0.01360 0.9975 162.5 17.3 19.0
2020 12 14 05 02 28.3 +03 30 26 0.0098200.9936 159.5 20.3 18.4
...
2020 12 20 18 12 16.7 -14 43 45 0.01382 0.9702 9.9 170.0 35.0
...
2020 12 28 17 48 39.5 -11 20 40 0.04494 0.9401 15.2 164.1 33.2
...
2021 01 12 17 47 48.5 -11 34 02 0.1089 0.8881 27.3 149.5 30.7
M. P. C. Staff (C) Copyright 2020 MPC M.P.E.C. 2020-X142
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