MPEC 2011-P25 : COMET 213P-B/VAN NESS
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M.P.E.C. 2011-P25 Issued 2011 Aug. 6, 04:14 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
COMET 213P-B/VAN NESS
Observations:
0213P b KC2011 07 31.11085 23 20 01.36 +01 56 04.8 20.7 TwEP025J01
0213P b KC2011 07 31.12744 23 20 01.17 +01 56 12.3 20.5 TwEP025J01
0213P b KC2011 07 31.14679 23 20 00.96 +01 56 21.9 19.6 TwEP025J01
0213P b KC2011 08 01.08836 23 19 50.41 +02 03 17.3 20.5 TwEP025J01
0213P b KC2011 08 01.11314 23 19 50.03 +02 03 28.1 20.6 TwEP025J01
0213P b KC2011 08 01.13791 23 19 49.63 +02 03 38.8 20.5 TwEP025J01
0213P b KC2011 08 04.05950 23 19 06.59 +02 24 13.5 19.6 NwEP025J01
0213P b KC2011 08 04.07606 23 19 06.38 +02 24 20.8 20.4 NwEP025J01
0213P b KC2011 08 04.09262 23 19 06.09 +02 24 27.9 20.4 NwEP025J01
0213P b C2011 08 05.48301 23 18 40.31 +02 33 46.0 21.2 RoEP025F65
0213P b C2011 08 05.48498 23 18 40.27 +02 33 46.8 20.8 RoEP025F65
0213P b C2011 08 05.48793 23 18 40.19 +02 33 48.3 21.1 RoEP025F65
0213P b C2011 08 05.57301 23 18 38.27 +02 34 21.3 21.4 RoEP025F65
0213P b C2011 08 05.57592 23 18 38.22 +02 34 22.4 21.6 RoEP025F65
0213P b C2011 08 05.57883 23 18 38.17 +02 34 23.8 21.0 RoEP025F65
0213P b KC2011 08 06.00365 23 18 29.72 +02 37 06.9 18.9 TcEP025104
0213P b KC2011 08 06.01091 23 18 29.53 +02 37 09.3 19.2 TcEP025104
0213P b KC2011 08 06.01817 23 18 29.42 +02 37 11.0 18.9 TcEP025104
0213P b KC2011 08 06.05785 23 18 28.46 +02 37 26.7 20.0 TcEP025104
0213P b KC2011 08 06.06511 23 18 28.31 +02 37 29.2 20.0 TcEP025104
0213P b KC2011 08 06.07962 23 18 28.01 +02 37 34.9 20.1 TcEP025104
Observer details:
104 San Marcello Pistoiese. Observers P. Bacci, L. Tesi, G. Fagioli. 0.60-m
f/4 reflector + CCD.
J01 Observatorio Cielo Profundo, Oviedo. Observer J. Gonzalez. 0.23-m f/6
Schmidt-Cassegrain + CCD.
F65 Haleakala-Faulkes Telescope North. Observers N. Howes, H. Blyth,
G. Sostero, E. Guido. 2.0-m f/10.0 Ritchey-Chretien + CCD.
Orbital elements:
213P-B/Van Ness
Epoch 2011 June 8.0 TT = JDT 2455720.5
T 2011 June 13.07116 TT MPC
q 2.0953314 (2000.0) P Q
n 0.15879459 Peri. 2.04264 +0.69698201 +0.70538971
a 3.3773721 Node 312.17495 -0.66035927 +0.56124405
e 0.3795971 Incl. 10.02444 -0.27953839 +0.43293240
P 6.21
From 21 observations 2011 July 31-Aug. 6, mean residual 0".59. E-assumed.
Residuals in seconds of arc
110731 J01 0.0 0.1+ 110804 J01 0.5+ 0.1- 110805 F65 0.9+ 0.5+
110731 J01 0.2+ 0.1+ 110804 J01 1.0+ 0.3+ 110806 104 0.5- 0.8+
110731 J01 0.7+ 1.1+ 110805 F65 0.5+ 0.2+ 110806 104 0.9- 0.4+
110801 J01 0.1- 0.5- 110805 F65 0.6+ 0.3+ 110806 104 0.1- 0.8-
110801 J01 0.5- 0.5- 110805 F65 0.4+ 0.6+ 110806 104 0.9- 0.4-
110801 J01 1.1- 0.7- 110805 F65 0.4+ 0.3+ 110806 104 0.7- 0.7-
110804 J01 1.2- 0.6- 110805 F65 0.6+ 0.2+ 110806 104 0.2- 0.6-
Ephemeris:
213P-B/Van Ness
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2011 07 07 23 15 39.1 -01 44 10 1.4792 2.1225 115.3 25.7 20.6
...
2011 07 22 23 20 21.7 +00 41 47 1.3574 2.1332 127.4 22.2 20.5
...
2011 07 30 23 20 11.8 +01 47 46 1.3030 2.1411 134.5 19.8 20.4
...
2011 08 05 23 18 49.5 +02 30 37 1.2684 2.1480 140.1 17.6 20.3
2011 08 06 23 18 29.8 +02 37 10 1.2633 2.1493 141.1 17.2 20.3
2011 08 07 23 18 08.4 +02 43 32 1.2582 2.1505 142.1 16.9 20.3
...
2011 08 13 23 15 26.7 +03 17 58 1.2318 2.1585 147.9 14.4 20.3
...
2011 08 21 23 10 32.1 +03 53 19 1.2074 2.1705 155.8 11.0 20.3
...
2011 09 05 22 58 45.3 +04 26 55 1.1994 2.1966 168.4 5.3 20.3
Brightness predictions are especially uncertain.
Gareth V. Williams (C) Copyright 2011 MPC M.P.E.C. 2011-P25
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