MPEC 2018-U82 : 2018 UR2
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M.P.E.C. 2018-U82 Issued 2018 Oct. 29, 16:41 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@CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2018 UR2
Observations:
K18U02R* C2018 10 26.57455 04 39 47.61 -31 34 20.3 17.7 oUEU082T05
K18U02R C2018 10 26.58421 04 39 43.55 -31 32 46.4 17.5 oUEU082T05
K18U02R C2018 10 26.59393 04 39 39.47 -31 31 11.5 17.6 oUEU082T05
K18U02R C2018 10 26.60364 04 39 35.41 -31 29 36.5 17.3 oUEU082T05
K18U02R KC2018 10 27.08871 04 36 24.96 -30 06 55.9 17.8 VUEU082X31
K18U02R KC2018 10 27.09167 04 36 23.71 -30 06 25.3 17.7 VUEU082X31
K18U02R KC2018 10 27.09470 04 36 22.40 -30 05 54.5 17.7 VUEU082X31
K18U02R C2018 10 27.28710004 35 00.94 -29 32 57.4 17.8 GVEU082H01
K18U02R C2018 10 27.29399804 34 57.88 -29 31 43.8 17.4 GVEU082H01
K18U02R C2018 10 27.31311604 34 49.39 -29 28 18.6 17.4 GVEU082H01
K18U02R C2018 10 27.31657504 34 47.85 -29 27 41.5 17.4 GVEU082H01
K18U02R C2018 10 28.30461704 27 31.09 -26 14 47.7 17.3 GVEU082H01
K18U02R C2018 10 28.31173604 27 27.62 -26 13 18.2 17.1 GVEU082H01
K18U02R C2018 10 28.31670 04 27 25.48 -26 12 14.0 17.2 GVEU082I52
K18U02R C2018 10 28.31683 04 27 25.41 -26 12 12.1 17.3 GVEU082I52
K18U02R C2018 10 28.31696 04 27 25.37 -26 12 10.7 17.1 GVEU082I52
K18U02R C2018 10 28.31709 04 27 25.29 -26 12 09.1 16.9 GVEU082I52
K18U02R C2018 10 28.31713204 27 24.98 -26 12 10.3 17.3 GVEU082H01
K18U02R C2018 10 28.32569004 27 20.80 -26 10 22.5 17.1 GVEU082H01
K18U02R KC2018 10 28.35673 04 27 04.64 -26 03 52.9 17.4 GUEU082H36
K18U02R KC2018 10 28.35792 04 27 04.05 -26 03 37.5 17.3 GUEU082H36
K18U02R KC2018 10 28.36293 04 27 01.58 -26 02 33.1 17.3 GUEU082H36
K18U02R KC2018 10 29.04902104 21 33.24 -23 28 52.9 17.2 GVEU082J95
K18U02R KC2018 10 29.05128704 21 32.07 -23 28 20.8 16.9 GVEU082J95
K18U02R KC2018 10 29.05346304 21 30.95 -23 27 49.8 17.3 GVEU082J95
K18U02R C2018 10 29.30239 04 19 27.78 -22 27 37.7 17.0 GVEU082I52
K18U02R C2018 10 29.30433 04 19 26.76 -22 27 09.5 16.8 GVEU082I52
K18U02R C2018 10 29.30675 04 19 25.47 -22 26 33.8 16.9 GVEU082I52
K18U02R C2018 10 29.30687 04 19 25.43 -22 26 32.1 16.9 GVEU082I52
K18U02R KC2018 10 29.60780 04 16 49.74 -21 09 33.1 17.1 VqEU082E23
K18U02R KC2018 10 29.61474 04 16 45.91 -21 07 45.8 17.0 VqEU082E23
K18U02R KC2018 10 29.62168 04 16 42.10 -21 05 59.0 qEU082E23
Observer details:
E23 Arcadia. Observer A. Hidas. 0.35-m f/1.9 reflector + CCD.
H01 Magdalena Ridge Observatory, Socorro. Observers W. H. Ryan, E. V. Ryan.
Measurer W. H. Ryan. 2.4-m f/8.9 Ritchey-Chretien + CCD.
H36 Sandlot Observatory, Scranton. Observer G. Hug. 0.56-m reflector + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observers G. J. Leonard,
B. M. Africano. Measurers B. M. Africano, E. J. Christensen,
G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller,
J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. L. Seaman,
F. C. Shelly. 1.0-m reflector + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.41-m f/6.3 Schmidt-Cassegrain
+ CCD.
T05 ATLAS-HKO, Haleakala. Observers L. Denneau, H. Flewelling, A. Heinze,
H. Weiland, J. Tonry. Measurers L. Denneau, H. Flewelling, A. Heinze,
J. Tonry, A. Fitzsimmons, D. Young. 0.5-m f/2.0 Schmidt + CCD.
X31 Galileo Galilei Observatory, Oro Verde. Observers C. Fornari, A. Lescano.
Measurer C. Fornari. 0.35-m f/11 Schmidt-Cassegrain + CCD.
Orbital elements:
2018 UR2 Earth MOID = 0.0851 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5 MPC
M 73.30300 (2000.0) P Q
n 0.40530440 Peri. 351.99357 +0.80343380 -0.42591117
a 1.8083473 Node 42.58455 +0.57464782 +0.37185147
e 0.4061363 Incl. 37.93998 +0.15580123 +0.82481887
P 2.43 H 20.1 G 0.15 U 7
Residuals in seconds of arc
181026 T05 0.3- 0.2+ 181028 H01 0.0 0.1- 181029 J95 0.1+ 0.1-
181026 T05 0.0 0.1- 181028 H01 0.0 0.0 181029 J95 0.1+ 0.1-
181026 T05 0.3+ 0.1- 181028 I52 0.0 0.0 181029 J95 0.2+ 0.1+
181026 T05 0.9+ 0.3- 181028 I52 0.1- 0.2+ 181029 I52 0.3- 0.0
181027 X31 0.4- 0.3+ 181028 I52 0.2+ 0.0 181029 I52 0.1- 0.2-
181027 X31 0.3- 0.3+ 181028 I52 0.0 0.0 181029 I52 0.1- 0.0
181027 X31 0.5- 0.2- 181028 H01 0.0 0.0 181029 I52 0.2+ 0.1-
181027 H01 0.0 0.2+ 181028 H01 0.1+ 0.1- 181029 E23 0.2- 0.0
181027 H01 0.0 0.0 181028 H36 0.4- 0.4- 181029 E23 0.3- 0.4+
181027 H01 0.1+ 0.0 181028 H36 0.5- 0.1- 181029 E23 0.2- 0.0
181027 H01 0.2+ 0.1- 181028 H36 0.6- 0.4+
Ephemeris:
2018 UR2 a,e,i = 1.81, 0.41, 38 q = 1.0739
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2018 09 29 05 44 32.6 -52 49 04 0.4336 1.1166 93.6 63.6 20.8
...
2018 10 14 05 29 06.2 -47 49 42 0.2731 1.0843 101.2 64.5 19.7
...
2018 10 22 05 04 23.3 -40 32 38 0.1855 1.0759 111.0 59.7 18.7
...
2018 10 28 04 29 48.3 -27 16 38 0.1254 1.0740 127.1 47.6 17.5
2018 10 29 04 21 57.1 -23 39 24 0.1167 1.0740 131.3 44.0 17.3
2018 10 30 04 13 20.6 -19 26 07 0.1088 1.0741 136.1 39.9 17.0
...
2018 11 05 03 02 38.3 +19 04 41 0.08605 1.0772 173.4 6.1 15.4
...
2018 11 13 00 46 42.3 +56 48 32 0.1367 1.0869 132.6 42.1 17.6
...
2018 11 28 22 11 31.7 +66 00 10 0.3011 1.1216 109.0 56.3 19.8
A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-U82
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