[Iaude] MPEC X78: 2018 XA2 [a=1.56,e=0.34,i=8.3,H=26.8]
mpec at mpcdb1.cfa.harvard.edu
mpec at mpcdb1.cfa.harvard.edu
Wed Dec 12 06:51:16 EST 2018
M.P.E.C. 2018-X78 Issued 2018 Dec. 12, 11:47 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 XA2
Observations:
K18X02A* C2018 12 09.19889 03 41 37.24 +37 21 22.1 20.6 GVEX078G96
K18X02A C2018 12 09.20410 03 41 42.23 +37 20 31.2 20.2 GVEX078G96
K18X02A C2018 12 09.20931 03 41 47.42 +37 19 38.4 21.1 GVEX078G96
K18X02A C2018 12 09.21452 03 41 52.38 +37 18 46.3 21.1 GVEX078G96
K18X02A C2018 12 09.25256903 42 28.35 +37 12 17.0 20.7 GVEX078H01
K18X02A C2018 12 09.25915403 42 34.73 +37 11 09.6 20.6 GVEX078H01
K18X02A C2018 12 09.26843203 42 43.71 +37 09 34.6 20.7 GVEX078H01
K18X02A C2018 12 09.27305803 42 48.20 +37 08 46.9 21.0 GVEX078H01
K18X02A C2018 12 09.29406 03 43 09.28 +37 05 16.8 21.4 GVEX078I52
K18X02A C2018 12 09.29600 03 43 11.13 +37 04 56.6 20.8 GVEX078I52
K18X02A C2018 12 09.29794 03 43 13.02 +37 04 36.1 VEX078I52
K18X02A C2018 12 09.29988 03 43 14.97 +37 04 16.1 VEX078I52
K18X02A IC2018 12 09.89287903 53 30.45 +35 20 57.9 20.9 GVEX078L01
K18X02A IC2018 12 09.89645803 53 33.78 +35 20 20.0 21.0 GVEX078L01
K18X02A KC2018 12 09.90265803 53 39.62 +35 19 14.8 21.0 GVEX078L01
K18X02A KC2018 12 10.12346903 57 25.57 +34 40 15.0 21.2 VuEX078H21
K18X02A C2018 12 10.13116 03 57 37.44 +34 38 57.3 20.6 GVEX078I52
K18X02A KC2018 12 10.13217803 57 33.62 +34 38 43.2 21.0 VuEX078H21
K18X02A C2018 12 10.13262 03 57 38.83 +34 38 42.6 21.0 GVEX078I52
K18X02A C2018 12 10.13464 03 57 40.75 +34 38 21.0 21.1 GVEX078I52
K18X02A KC2018 12 10.14138403 57 42.12 +34 37 06.2 21.4 VuEX078H21
K18X02A C2018 12 12.14365 04 28 39.54 +28 26 34.2 21.1 GVEX078I52
K18X02A C2018 12 12.14511 04 28 40.70 +28 26 17.4 20.4 GVEX078I52
K18X02A C2018 12 12.14656 04 28 41.88 +28 26 02.2 21.0 GVEX078I52
K18X02A C2018 12 12.14801 04 28 43.04 +28 25 46.9 20.0 GVEX078I52
Observer details:
G96 Mt. Lemmon Survey. Observer D. C. Fuls. 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. 1.5-m reflector + 10K 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.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes. 0.76-m f/3.0
astrograph + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observers H. Groeller,
G. J. Leonard. 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.
L01 Visnjan Observatory, Tican. Observer K. Korlevic. 1.0-m f/2.9 reflector
+ CCD.
Orbital elements:
2018 XA2 Earth MOID = 0.0448 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5 MPC
M 73.67218 (2000.0) P Q
n 0.50412370 Peri. 166.69192 +0.37156407 -0.91741384
a 1.5635483 Node 261.34934 +0.83806006 +0.39745701
e 0.3444297 Incl. 8.28454 +0.39949402 +0.01948759
P 1.96 H 26.8 G 0.15 U 7
Residuals in seconds of arc
181209 G96 0.3+ 0.0 181209 I52 0.3- 0.1+ 181210 I52 0.2- 0.5+
181209 G96 0.6- 0.9+ 181209 I52 0.2- 0.3- 181210 I52 0.2+ 0.2-
181209 G96 1.0+ 0.0 181209 I52 0.7+ 0.2- 181210 H21 0.3- 0.0
181209 G96 0.1- 0.1- 181209 L01 0.6+ 0.3- 181212 I52 0.0 0.1+
181209 H01 0.3- 0.0 181209 L01 0.1+ 0.4- 181212 I52 0.1- 0.7-
181209 H01 0.2- 0.1- 181209 L01 0.2+ 0.1- 181212 I52 0.1+ 0.0
181209 H01 0.2- 0.1+ 181210 H21 0.1- 0.1+ 181212 I52 0.1+ 0.7+
181209 H01 0.1- 0.0 181210 I52 0.5- 0.1+
181209 I52 0.0 0.2+ 181210 H21 0.3- 0.1-
Ephemeris:
2018 XA2 a,e,i = 1.56, 0.34, 8 q = 1.0250
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2018 11 12 22 28 53.7 +48 06 44 0.1096 1.0435 116.5 58.1 24.2
...
2018 11 27 00 07 22.2 +51 37 21 0.06664 1.0260 124.4 52.5 22.9
...
2018 12 05 02 21 38.2 +46 45 06 0.04975 1.0254 142.3 36.0 21.8
...
2018 12 11 04 11 26.0 +32 01 21 0.04590 1.0290 164.1 15.2 21.0
2018 12 12 04 26 26.5 +28 54 23 0.04630 1.0299 167.6 11.8 20.9
2018 12 13 04 40 17.2 +25 45 52 0.04700 1.0309 170.7 8.9 20.8
...
2018 12 19 05 41 42.0 +09 05 47 0.05679 1.0390 165.7 13.6 21.4
...
2018 12 27 06 25 26.7 -03 52 37 0.07953 1.0548 152.8 25.3 22.6
...
2019 01 11 07 00 16.4 -11 48 45 0.1354 1.0978 145.6 30.4 24.0
A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-X78
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