[Iaude] MPEC X130: 2018 XP4 [a=2.34,e=0.74,i=1.7,H=24.3]
mpec at mpcdb1.cfa.harvard.edu
mpec at mpcdb1.cfa.harvard.edu
Sat Dec 15 13:01:17 EST 2018
M.P.E.C. 2018-X130 Issued 2018 Dec. 15, 17:54 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
2018 XP4
Observations:
K18X04P C2018 12 13.48773 04 09 11.086+09 09 47.67 21.6 wUEX130F51
K18X04P* C2018 12 13.49030 04 09 11.393+09 09 57.52 21.3 wUEX130F51
K18X04P C2018 12 13.49935 04 09 12.525+09 10 32.94 21.5 wUEX130F51
K18X04P C2018 12 13.50195 04 09 12.847+09 10 43.11 21.4 wUEX130F51
K18X04P C2018 12 13.51098 04 09 13.954+09 11 18.30 21.2 wUEX130F51
K18X04P C2018 12 13.51354 04 09 14.287+09 11 28.56 21.6 wUEX130F51
K18X04P C2018 12 13.52259 04 09 15.415+09 12 03.25 21.4 wUEX130F51
K18X04P C2018 12 13.52517 04 09 15.729+09 12 13.56 21.5 wUEX130F51
K18X04P C2018 12 14.22597 04 10 52.20 +09 55 23.2 21.6 GVEX130I52
K18X04P C2018 12 14.22847 04 10 52.48 +09 55 31.8 21.4 GVEX130I52
K18X04P C2018 12 14.23449 04 10 53.12 +09 55 52.7 21.6 GVEX130I52
K18X04P C2018 12 14.23698 04 10 53.36 +09 56 02.2 21.1 GVEX130I52
K18X04P ^C2018 12 14.37367304 11 10.238+10 04 06.71 21.40GVEX130568
K18X04P ^C2018 12 14.37462304 11 10.339+10 04 10.07 21.49GVEX130568
K18X04P ^C2018 12 14.37557604 11 10.435+10 04 13.17 21.51GVEX130568
K18X04P KC2018 12 15.21302 04 12 49.51 +10 48 58.7 oEX130291
K18X04P KC2018 12 15.21975 04 12 50.15 +10 49 19.2 oEX130291
Observer details:
291 LPL/Spacewatch II. Observer M. T. Read. 1.8-m f/2.7 reflector + CCD.
568 Mauna Kea. Observers R. Wainscoat, C. Wipper, A. Petric. Measurers
R. Weryk, R. Wainscoat. 3.6-m Canada-France-Hawaii Telescope + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, T. Lowe, A. Schultz,
M. Willman. Measurers K. Chambers, S. Chastel, 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.
I52 Steward Observatory, Mt. Lemmon Station. Observer H. Groeller.
Measurers B. M. Africano, 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, R. L. Seaman, F. C. Shelly. 1.0-m reflector + CCD.
Orbital elements:
2018 XP4 Earth MOID = 0.0282 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5 MPC
M 52.15915 (2000.0) P Q
n 0.27476471 Peri. 200.78549 +0.95660118 +0.29080959
a 2.3433046 Node 142.29233 -0.26289193 +0.88872063
e 0.7445016 Incl. 1.73764 -0.12570608 +0.35440855
P 3.59 H 24.3 G 0.15 U 8
Residuals in seconds of arc
181213 F51 0.1- 0.0 181213 F51 0.1+ 0.1- 181214 568 0.1+ 0.0
181213 F51 0.2- 0.2- 181213 F51 0.1- 0.2+ 181214 568 0.1+ 0.2+
181213 F51 0.1+ 0.1- 181214 I52 0.0 0.1- 181214 568 0.1+ 0.0
181213 F51 0.1+ 0.1- 181214 I52 0.2+ 0.2- 181215 291 0.1- 0.0
181213 F51 0.1- 0.0 181214 I52 0.1+ 0.5- 181215 291 0.0 0.1+
181213 F51 0.1+ 0.3+ 181214 I52 0.3- 0.3+
Ephemeris:
2018 XP4 a,e,i = 2.34, 0.74, 2 q = 0.5987
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2018 11 15 16 50 43.9 -28 13 10 0.2354 0.7782 23.1 150.1 29.1
...
2018 11 30 19 38 13.9 -59 05 50 0.04680 0.9575 51.0 126.8 23.0
...
2018 12 08 03 46 57.2 -01 43 35 0.08259 1.0576 150.2 27.6 20.2
...
2018 12 14 04 10 22.6 +09 42 15 0.1583 1.1326 157.9 19.1 21.5
2018 12 15 04 12 24.6 +10 38 20 0.1715 1.1450 158.0 18.8 21.7
2018 12 16 04 14 12.4 +11 26 48 0.1848 1.1575 157.9 18.6 21.9
...
2018 12 22 04 22 03.2 +14 40 36 0.2670 1.2316 155.5 19.4 22.9
...
2018 12 30 04 29 17.7 +16 57 45 0.3828 1.3287 150.0 21.7 23.9
...
2019 01 14 04 41 47.0 +19 13 21 0.6208 1.5044 138.2 25.8 25.3
A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-X130
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