MPEC 2018-A59 : 2018 AS2
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M.P.E.C. 2018-A59 Issued 2018 Jan. 14, 01:36 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 AS2
Observations:
K18A02S* C2018 01 12.33089 09 41 07.17 +26 22 30.4 19.6 GUEA059G96
K18A02S C2018 01 12.33609 09 41 11.50 +26 20 30.7 19.7 GUEA059G96
K18A02S C2018 01 12.34479 09 41 18.67 +26 17 08.4 19.8 GUEA059G96
K18A02S C2018 01 12.34999 09 41 22.94 +26 15 07.2 19.8 GUEA059G96
K18A02S C2018 01 12.40324 09 42 07.14 +25 53 22.5 19.6 GUEA059I52
K18A02S C2018 01 12.40384 09 42 07.61 +25 53 08.2 19.8 GUEA059I52
K18A02S C2018 01 12.40414 09 42 07.87 +25 53 01.1 19.3 GUEA059I52
K18A02S KC2018 01 12.41779 09 42 12.34 +25 47 31.8 oEA059711
K18A02S IC2018 01 12.42001 09 42 14.35 +25 46 35.6 oEA059711
K18A02S KC2018 01 12.42193 09 42 16.11 +25 45 45.0 oEA059711
K18A02S KC2018 01 12.95742 09 56 46.75 +20 36 37.6 18.5 GUEA059204
K18A02S HC2018 01 12.96222 09 56 54.68 +20 33 09.3 UEA059204
K18A02S C2018 01 13.55656 10 21 08.80 +09 41 52.1 18.2 GUEA059G96
K18A02S C2018 01 13.55898 10 21 16.51 +09 37 56.1 18.1 GUEA059G96
K18A02S C2018 01 13.55908 10 21 16.78 +09 37 47.4 18.3 GUEA059G96
K18A02S C2018 01 13.55917 10 21 17.07 +09 37 38.6 18.2 GUEA059G96
Observer details:
204 Schiaparelli Observatory. Observer L. Buzzi. 0.60-m f/4.64 reflector
+ CCD.
711 McDonald Observatory. Observer J. G. Ries. 2.1-m reflector + CCD + focal
reducer.
G96 Mt. Lemmon Survey. Observer D. C. Fuls. Measurers E. J. Christensen,
D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson, R. A. Kowalski,
S. M. Larson, G. J. Leonard, R. G. Matheny, R. L. Seaman, F. C. Shelly.
1.5-m reflector + 10K CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer R. G. Matheny.
Measurers E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. G. Matheny,
R. L. Seaman, F. C. Shelly. 1.0-m reflector + CCD.
Orbital elements:
2018 AS2 Earth MOID = 0.0021 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5 MPC
M 149.55473 (2000.0) P Q
n 1.00797292 Peri. 283.50931 -0.79690679 +0.59734292
a 0.9851525 Node 293.24449 -0.50936980 -0.74462097
e 0.2231625 Incl. 5.62848 -0.32477987 -0.29786080
P 0.98 H 28.6 G 0.15 U 6
Residuals in seconds of arc
180112 G96 0.1- 0.2+ 180112 I52 0.1+ 0.4+ 180113 G96 0.1- 0.2-
180112 G96 0.2+ 0.1+ 180112 711 0.3- 0.3- 180113 G96 0.3+ 0.5-
180112 G96 0.1- 0.0 180112 711 (1.4+ 1.8+) 180113 G96 0.4- 0.5+
180112 G96 0.4- 0.8+ 180112 711 (3.1+ 1.6+) 180113 G96 0.3- 0.5+
180112 I52 0.4+ 1.1- 180112 204 0.1+ 0.0
180112 I52 0.0 0.1- 180112 204 0.0 0.3+
Ephemeris:
2018 AS2 a,e,i = 0.99, 0.22, 6 q = 0.7653
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2017 12 15 08 38 15.0 +38 48 12 0.1400 1.0912 137.2 37.8 26.0
...
2017 12 30 08 54 11.8 +38 35 25 0.06870 1.0415 146.8 31.1 24.2
...
2018 01 07 09 05 51.8 +36 41 15 0.03295 1.0124 151.4 27.7 22.4
...
2018 01 13 09 57 26.3 +20 15 07 0.0071100.9896 147.3 32.5 19.2
2018 01 14 10 59 02.5 -06 31 43 0.0036280.9857 124.1 55.7 18.4
2018 01 15 15 30 02.5 -59 45 40 0.0037810.9817 58.7 121.1 21.4
...
2018 01 21 20 34 57.6 -43 57 51 0.02878 0.9580 24.5 154.8 30.3
...
2018 01 29 20 45 51.0 -40 56 59 0.06454 0.9258 22.9 155.6 32.1
...
2018 02 13 20 51 16.9 -37 36 24 0.1387 0.8659 26.9 148.9 32.2
A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-A59
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