MPEC 2012-W18 : 1998 VE31
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M.P.E.C. 2012-W18 Issued 2012 Nov. 18, 23:02 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are published
on behalf of Commission 20 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
1998 VE31
Revision to MPEC 1998-W03
Additional Observations:
J98V31E C2012 11 17.18097 02 48 56.10 +04 36 50.9 18.6 cEW018704
J98V31E C2012 11 17.19622 02 48 50.77 +04 38 12.6 18.6 cEW018704
J98V31E C2012 11 17.21215 02 48 45.20 +04 39 37.3 18.6 cEW018704
J98V31E C2012 11 17.22706 02 48 40.01 +04 40 56.6 18.7 cEW018704
J98V31E C2012 11 17.24204 02 48 34.74 +04 42 16.8 18.8 cEW018704
J98V31E KC2012 11 18.14215 02 43 37.00 +06 00 54.0 uEW018J95
J98V31E KC2012 11 18.14511 02 43 36.04 +06 01 09.5 uEW018J95
J98V31E KC2012 11 18.14813 02 43 35.01 +06 01 24.7 18.2 RuEW018J95
J98V31E KC2012 11 18.18443 02 43 24.26 +06 05 34.7 18.3 RuEW018I19
J98V31E KC2012 11 18.18577 02 43 23.77 +06 05 40.7 18.3 RuEW018I19
J98V31E KC2012 11 18.18710 02 43 23.37 +06 05 47.9 18.0 RuEW018I19
J98V31E KC2012 11 18.21062402 43 16.40 +06 06 58.1 18.2 VvEW018H21
J98V31E KC2012 11 18.21369302 43 15.37 +06 07 14.1 18.2 VvEW018H21
J98V31E KC2012 11 18.21675802 43 14.34 +06 07 29.9 18.2 VvEW018H21
J98V31E KC2012 11 18.21966202 43 13.35 +06 07 45.0 18.2 VvEW018H21
J98V31E KC2012 11 18.23042 02 43 10.08 +06 08 40.6 18.2 RqEW018H36
J98V31E KC2012 11 18.23288 02 43 09.23 +06 08 53.2 18.7 RqEW018H36
J98V31E KC2012 11 18.23535 02 43 08.38 +06 09 06.0 18.4 RqEW018H36
J98V31E KC2012 11 18.23782 02 43 07.54 +06 09 19.6 18.6 RqEW018H36
J98V31E C2012 11 18.51308 02 41 38.90 +06 33 56.1 18.3 RoEW018474
J98V31E C2012 11 18.51541 02 41 38.10 +06 34 08.3 18.4 RoEW018474
J98V31E C2012 11 18.51657 02 41 37.72 +06 34 14.2 18.3 RoEW018474
J98V31E C2012 11 18.51774 02 41 37.32 +06 34 20.3 18.3 RoEW018474
J98V31E C2012 11 18.51891 02 41 36.94 +06 34 26.2 18.2 RoEW018474
J98V31E C2012 11 18.54688 02 41 29.07 +06 35 53.3 18.8 RoEW018300
J98V31E C2012 11 18.54850 02 41 28.57 +06 36 02.0 18.8 RoEW018300
J98V31E C2012 11 18.55012 02 41 28.03 +06 36 09.8 18.9 RoEW018300
J98V31E C2012 11 18.55335 02 41 26.94 +06 36 27.6 19.0 RoEW018300
J98V31E KC2012 11 18.76293 02 40 21.76 +06 54 08.9 18.3 VoEW018C77
J98V31E KC2012 11 18.78768 02 40 13.68 +06 56 16.0 19.1 VoEW018C77
J98V31E KC2012 11 18.80760 02 40 07.18 +06 57 57.7 19.3 VoEW018C77
J98V31E KC2012 11 18.83779 02 39 57.36 +07 00 27.5 uEW018J95
J98V31E KC2012 11 18.84220 02 39 55.94 +07 00 49.8 uEW018J95
J98V31E KC2012 11 18.84459 02 39 55.16 +07 01 02.1 17.9 RuEW018J95
Observer details:
300 Bisei Spaceguard Center--BATTeRS. Observers A. Asami, N. Hashimoto.
1.0-m f/3.0 reflector + CCD.
474 Mount John Observatory, Lake Tekapo. Observers A. C. Gilmore,
P. M. Kilmartin. Measurer P. M. Kilmartin. 1.0-m f/7.7 reflector + CCD.
704 Lincoln Laboratory ETS, New Mexico. Observers M. Blythe, G. Spitz,
R. Brungard, J. Paige, P. Festler, T. McVey, A. Valdivia, C. Gall. 1.0-m
f/2.15 reflector + CCD.
C77 Bernezzo Observatory. Observer A. Mantero. 0.25-m f/4 reflector + CCD.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers T. Vorobjov, L. Buzzi, S. Foglia. 0.61-m f/4.0 astrograph + CCD.
H36 Sandlot Observatory, Scranton. Observer G. Hug. 0.56-m reflector + CCD.
I19 Observatorio El Gato Gris, Tanti. Observer C. Colazo. 0.36-m f/11
Schmidt-Cassegrain + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.40-m f/6.0 Schmidt-Cassegrain
+ CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
121117 704 7.76- 5.94- 121118 J95 7.51- 5.83- MPO 57680 +2.2 day
Orbital elements:
1998 VE31 Earth MOID = 0.1212 AU
Epoch 2012 Sept. 30.0 TT = JDT 2456200.5 MPC
M 74.72130 (2000.0) P Q
n 0.91518424 Peri. 219.47366 +0.07974960 +0.94586447
a 1.0506636 Node 57.33350 -0.79369660 +0.25119874
e 0.1902308 Incl. 21.94552 -0.60306360 -0.20552273
P 1.08 H 20.9 G 0.15 U 5
Residuals in seconds of arc
981113 704 1.4- 0.1- 981115 587 1.0+ 0.6+ 121118 I19 0.6+ 0.2-
981113 704 1.2+ 0.5+ 981115 587 0.3- 0.7- 121118 H21 0.1- 0.1+
981113 704 0.3- 0.0 981115 104 0.6+ 0.8- 121118 H21 0.0 0.2+
981113 704 0.6- 1.0+ 981115 104 (3.1+ 0.1-) 121118 H21 0.1+ 0.2+
981113 704 0.7+ 0.9- 981116 046 0.2- 0.5- 121118 H21 0.0 0.2+
981114 704 0.3+ 1.1- 981116 046 0.5- 0.3+ 121118 H36 0.7+ 0.3-
981114 704 0.5+ 0.0 981116 046 1.2- 1.3+ 121118 H36 0.4+ 0.5-
981114 704 1.2+ 0.6- 981116 046 0.6- 1.5+ 121118 H36 0.2+ 0.4-
981114 704 0.7+ 0.8- 981116 046 0.4+ 1.0- 121118 H36 0.1+ 0.4+
981114 704 1.5+ 1.2- 981116 426 0.2- 1.6- 121118 474 0.0 0.1-
981114 402 1.0- 0.7+ 981116 426 0.1- 0.5- 121118 474 0.3- 0.1+
981114 402 0.5- 0.7+ 981119 699 (1.0+ 2.1-) 121118 474 0.2- 0.1+
981114 402 0.8- 0.5+ 981119 699 1.6+ 1.8- 121118 474 0.4- 0.2+
981114 426 1.4- 1.4+ 981126 402 1.3- 0.5+ 121118 474 0.2- 0.1+
981114 426 0.2+ 0.6- 981126 402 1.1+ 0.3- 121118 300 0.4- 0.6-
981114 426 (2.5+ 0.5-) 981126 402 0.3+ 0.1+ 121118 300 0.2+ 0.2-
981114 557 0.8- 0.5- 121117 704 0.3+ 0.1+ 121118 300 0.3+ 0.7-
981114 557 0.3- 0.5+ 121117 704 0.1+ 0.4+ 121118 300 0.1+ 0.5+
981114 557 0.6+ 1.0+ 121117 704 0.0 0.2+ 121118 C77 1.0+ 0.8-
981114 557 0.6+ 0.4- 121117 704 0.3+ 0.1+ 121118 C77 0.3+ 0.2-
981115 426 0.2+ 0.1- 121117 704 0.3- 0.5+ 121118 C77 0.1+ 0.2-
981115 426 0.1+ 0.1+ 121118 J95 0.0 0.1+ 121118 J95 0.3- 0.1+
981115 426 0.8- 0.7+ 121118 J95 0.1+ 0.3+ 121118 J95 0.1- 0.0
981115 360 0.0 0.6+ 121118 J95 0.4- 0.1- 121118 J95 0.1- 0.1+
981115 360 0.5+ 0.1+ 121118 I19 0.4+ 0.4+
981115 360 0.5+ 0.0 121118 I19 0.1- 0.5-
Ephemeris:
1998 VE31 a,e,i = 1.05, 0.19, 22 q = 0.8508
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2012 10 19 05 35 59.1 -31 01 25 0.2312 1.0947 109.4 59.1 20.0
...
2012 11 03 04 17 22.7 -17 02 02 0.1841 1.1372 138.9 35.0 18.9
...
2012 11 11 03 26 03.5 -05 01 22 0.1798 1.1576 157.0 19.5 18.5
...
2012 11 17 02 49 55.8 +04 21 03 0.1906 1.1718 162.4 14.8 18.5
2012 11 18 02 44 25.1 +05 49 05 0.1936 1.1741 161.9 15.1 18.5
2012 11 19 02 39 05.2 +07 14 37 0.1969 1.1763 161.1 15.8 18.6
...
2012 11 25 02 11 11.7 +14 47 25 0.2225 1.1891 152.6 22.4 19.1
...
2012 12 03 01 45 04.9 +22 10 30 0.2687 1.2043 140.1 31.7 19.8
...
2012 12 18 01 23 52.0 +30 30 09 0.3761 1.2273 122.4 42.6 20.9
A. U. Tomatic (C) Copyright 2012 MPC M.P.E.C. 2012-W18
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