[Iaude] MPEC X148: 2020 XJ4 [a=1.23,e=0.18,i=3.1,H=24.7]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Sun Dec 13 13:55:36 EST 2020
M.P.E.C. 2020-X148 Issued 2020 December 13, 18:54 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 XJ4
Observations:
K20X04J* C2020 12 09.26390523 45 56.844+25 44 11.97 22.29wUEX148F51
K20X04J C2020 12 09.27655423 46 00.391+25 44 55.08 21.79wUEX148F51
K20X04J C2020 12 09.28923523 46 03.945+25 45 37.45 22.25wUEX148F51
K20X04J C2020 12 09.30196823 46 07.552+25 46 20.41 22.08wUEX148F51
K20X04J KC2020 12 10.05765623 50 10.46 +26 29 25.1 22.0 VuEX148H21
K20X04J KC2020 12 10.06316223 50 12.14 +26 29 43.8 22.4 VuEX148H21
K20X04J C2020 12 10.21017223 51 00.658+26 38 38.81 22.11GVEX148T12
K20X04J C2020 12 10.21191223 51 01.149+26 38 44.82 22.06GVEX148T12
K20X04J KC2020 12 13.07686600 06 54.08 +29 17 23.7 21.59GVEX148V06
K20X04J KC2020 12 13.08175200 06 55.55 +29 17 39.0 21.42GVEX148V06
K20X04J KC2020 12 13.08663700 06 57.06 +29 17 54.7 22.04GVEX148V06
K20X04J KC2020 12 13.09152200 06 58.60 +29 18 10.9 21.58GVEX148V06
K20X04J IC2020 12 13.73536100 10 40.93 +29 52 14.3 21.9 GVEX148L01
K20X04J pC2020 12 13.73927200 10 42.21 +29 52 26.7 21.7 GVEX148L01
K20X04J pC2020 12 13.75602000 10 47.48 +29 53 19.4 22.0 GVEX148L01
Observer details:
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.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes. 1.3-m f/4.0
astrograph + CCD.
L01 Visnjan Observatory, Tican. Observers K. Korlevic, D. Pujagic. 1.0-m
f/2.9 reflector + CCD.
T12 Mauna Kea-UH/Tholen NEO Follow-Up (2.24-m). Observer D. Fohring.
Measurer D. J. Tholen. 2.24-m f/10.1 reflector + CCD.
V06 Catalina Sky Survey-Kuiper. Observer D. C. Fuls. 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. 1.55-m reflector +
1K CCD.
Orbital elements:
2020 XJ4 Earth MOID = 0.0299 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 17.58573 (2000.0) P Q
n 0.72198411 Peri. 30.68751 +0.56902074 -0.82200918
a 1.2306020 Node 24.65254 +0.74297655 +0.50207695
e 0.1765580 Incl. 3.12275 +0.35242199 +0.26873712
P 1.37 H 24.7 G 0.15 U 7
Residuals in seconds of arc
201209 F51 0.1- 0.0 201210 H21 0.6+ 0.0 201213 V06 0.1+ 0.3-
201209 F51 0.0 0.3+ 201210 T12 0.0 0.1- 201213 V06 0.6+ 0.2+
201209 F51 0.1- 0.1- 201210 T12 0.0 0.0 201213 L01 0.4- 0.3+
201209 F51 0.0 0.2+ 201213 V06 0.3+ 0.3+ 201213 L01 0.1+ 0.2+
201210 H21 0.5- 0.1- 201213 V06 0.1- 0.2- 201213 L01 0.6- 0.1-
Ephemeris:
2020 XJ4 a,e,i = 1.23, 0.18, 3 q = 1.0133
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 11 13 22 03 36.3 -00 12 15 0.1025 1.0157 101.9 72.5 22.3
...
2020 11 28 22 53 50.6 +14 19 30 0.09722 1.0140 103.7 70.9 22.2
...
2020 12 06 23 29 25.8 +22 30 58 0.09747 1.0178 106.9 67.9 22.1
...
2020 12 12 00 00 48.7 +28 18 47 0.09968 1.0227 109.9 64.9 22.0
2020 12 13 00 06 27.2 +29 13 17 0.1002 1.0237 110.4 64.3 22.0
2020 12 14 00 12 12.7 +30 06 32 0.1009 1.0247 110.9 63.8 22.0
...
2020 12 20 00 49 03.5 +34 55 14 0.1058 1.0319 114.3 60.3 22.0
...
2020 12 28 01 42 48.1 +39 38 55 0.1157 1.0438 118.6 55.8 22.1
...
2021 01 12 03 23 57.6 +42 53 07 0.1453 1.0725 124.5 49.1 22.5
M. P. C. Staff (C) Copyright 2020 MPC M.P.E.C. 2020-X148
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