MPEC 2018-B21 : 2018 AE12
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M.P.E.C. 2018-B21 Issued 2018 Jan. 17, 23:07 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 AE12
Observations:
K18A12E* C2018 01 14.24414 07 35 49.21 +12 22 04.0 20.5 GUEB021G96
K18A12E C2018 01 14.25192 07 35 47.28 +12 22 26.7 20.6 GUEB021G96
K18A12E C2018 01 14.25707 07 35 46.02 +12 22 41.6 20.5 GUEB021G96
K18A12E C2018 01 14.26223 07 35 44.75 +12 22 57.4 21.2 GUEB021G96
K18A12E C2018 01 14.29374307 35 36.98 +12 24 28.6 20.6 GUEB021H01
K18A12E C2018 01 14.30053607 35 35.34 +12 24 48.4 20.6 GUEB021H01
K18A12E KC2018 01 14.30064 07 35 35.41 +12 24 49.7 oEB021691
K18A12E C2018 01 14.30627807 35 33.94 +12 25 05.1 20.8 GUEB021H01
K18A12E KC2018 01 14.30720 07 35 33.83 +12 25 09.1 oEB021691
K18A12E C2018 01 14.31205 07 35 32.61 +12 25 22.8 UEB021I52
K18A12E C2018 01 14.31330 07 35 32.36 +12 25 26.4 21.1 GUEB021I52
K18A12E KC2018 01 14.31375 07 35 32.25 +12 25 27.8 oEB021691
K18A12E C2018 01 14.31438007 35 31.98 +12 25 28.6 20.4 GUEB021H01
K18A12E C2018 01 14.31454 07 35 32.04 +12 25 29.9 20.4 GUEB021I52
K18A12E C2018 01 14.31578 07 35 31.74 +12 25 33.4 20.4 GUEB021I52
K18A12E C2018 01 14.31858 07 35 31.05 +12 25 41.4 20.2 GUEB021I52
K18A12E C2018 01 14.32141 07 35 30.36 +12 25 49.8 21.0 GUEB021I52
K18A12E C2018 01 14.32429 07 35 29.67 +12 25 57.8 20.4 GUEB021I52
K18A12E C2018 01 14.32722 07 35 28.96 +12 26 06.4 20.6 GUEB021I52
K18A12E C2018 01 15.14752407 32 26.74 +13 04 24.9 20.9 GUEB021H01
K18A12E C2018 01 15.15301907 32 25.52 +13 04 39.9 20.6 GUEB021H01
K18A12E C2018 01 15.16237907 32 23.43 +13 05 05.5 20.6 GUEB021H01
K18A12E C2018 01 15.16872407 32 22.01 +13 05 22.8 21.0 GUEB021H01
K18A12E C2018 01 15.32332 07 31 47.44 +13 12 20.1 20.5 GUEB021I52
K18A12E C2018 01 15.32456 07 31 47.18 +13 12 23.3 20.9 GUEB021I52
K18A12E C2018 01 15.32584 07 31 46.87 +13 12 27.0 20.6 GUEB021I52
K18A12E C2018 01 15.32708 07 31 46.60 +13 12 30.2 20.9 GUEB021I52
K18A12E C2018 01 16.20886 07 28 46.24 +13 50 17.2 20.8 GUEB021I52
K18A12E C2018 01 16.21051 07 28 45.89 +13 50 21.0 20.6 GUEB021I52
K18A12E C2018 01 16.21217 07 28 45.56 +13 50 25.7 20.6 GUEB021I52
K18A12E C2018 01 16.21383 07 28 45.22 +13 50 29.3 21.0 GUEB021I52
K18A12E C2018 01 17.00053 07 26 12.90 +14 21 50.1 20.8 VSEB021033
K18A12E C2018 01 17.00429 07 26 12.18 +14 21 58.9 20.1 VSEB021033
K18A12E C2018 01 17.00804 07 26 11.48 +14 22 07.8 20.4 VSEB021033
K18A12E C2018 01 17.01556 07 26 10.01 +14 22 24.4 20.8 VSEB021033
K18A12E C2018 01 17.01932 07 26 09.28 +14 22 34.0 20.4 VSEB021033
K18A12E C2018 01 17.22966907 25 31.51 +14 30 44.4 20.8 GUEB021H01
K18A12E C2018 01 17.23357907 25 30.76 +14 30 53.3 20.7 GUEB021H01
K18A12E C2018 01 17.24630807 25 28.32 +14 31 22.5 21.2 GUEB021H01
K18A12E C2018 01 17.25247907 25 27.14 +14 31 36.6 20.6 GUEB021H01
Observer details:
033 Karl Schwarzschild Observatory, Tautenburg. Observers F. Ludwig,
B. Stecklum. Measurer B. Stecklum. 1.34-m f/3 Schmidt + CCD.
691 Steward Observatory, Kitt Peak. Observer M. T. Read. 0.9-m f/3 reflector
+ CCD.
G96 Mt. Lemmon Survey. Observer A. R. Gibbs. 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.
H01 Magdalena Ridge Observatory, Socorro. Observers W. H. Ryan, E. V. Ryan.
Measurer W. H. Ryan. 2.4-m f/8.9 reflector + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer J. A. Johnson.
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 AE12 Earth MOID = 0.0689 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5 MPC
M 337.82744 (2000.0) P Q
n 0.32968501 Peri. 227.49967 +0.99127740 +0.06827069
a 2.0752476 Node 128.26995 -0.02991135 +0.94959129
e 0.7813445 Incl. 8.25550 -0.12835275 +0.30596649
P 2.99 H 22.4 G 0.15 U 7
Residuals in seconds of arc
180114 G96 0.7+ 0.1- 180114 I52 0.1+ 0.0 180116 I52 0.1- 0.2-
180114 G96 0.2+ 0.2- 180114 I52 0.0 0.2- 180116 I52 0.1+ 0.3+
180114 G96 0.1+ 0.4- 180114 I52 0.1- 0.0 180116 I52 0.1+ 0.2-
180114 G96 0.1- 0.2+ 180114 I52 0.0 0.4- 180117 033 0.1- 0.0
180114 H01 0.0 0.0 180114 I52 0.0 0.3- 180117 033 0.0 0.1+
180114 H01 0.2+ 0.1+ 180115 H01 0.1- 0.1+ 180117 033 0.3+ 0.3+
180114 691 0.4- 0.1+ 180115 H01 0.0 0.1+ 180117 033 0.0 0.5-
180114 H01 0.1+ 0.0 180115 H01 0.0 0.1+ 180117 033 0.1- 0.4+
180114 691 0.2- 0.4+ 180115 H01 0.0 0.1+ 180117 H01 0.0 0.0
180114 I52 0.4- 0.2+ 180115 I52 0.0 0.1- 180117 H01 0.0 0.1-
180114 I52 0.4+ 0.2+ 180115 I52 0.3+ 0.2- 180117 H01 0.0 0.0
180114 691 0.0 0.0 180115 I52 0.1- 0.1+ 180117 H01 0.0 0.0
180114 H01 0.2+ 0.0 180115 I52 0.0 0.0
180114 I52 0.1+ 0.1+ 180116 I52 0.0 0.1+
Ephemeris:
2018 AE12 a,e,i = 2.08, 0.78, 8 q = 0.4538
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2017 12 18 13 54 10.3 -40 38 57 0.1648 0.8883 50.5 121.3 23.2
...
2018 01 02 09 01 29.1 -06 06 39 0.1608 1.1055 136.5 37.7 20.2
...
2018 01 10 07 55 38.6 +08 10 49 0.2395 1.2157 164.2 12.7 20.5
...
2018 01 16 07 29 27.3 +13 41 43 0.3146 1.2955 171.2 6.7 21.0
2018 01 17 07 26 13.5 +14 22 03 0.3280 1.3085 170.7 7.0 21.1
2018 01 18 07 23 14.8 +14 59 15 0.3416 1.3215 169.9 7.5 21.2
...
2018 01 24 07 09 42.1 +17 51 29 0.4280 1.3982 162.3 12.3 22.0
...
2018 02 01 06 59 48.5 +20 13 31 0.5533 1.4968 152.1 17.9 22.9
...
2018 02 16 06 55 36.8 +22 29 36 0.8146 1.6715 135.8 24.3 24.2
A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-B21
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