[IAUC] CBET 3219: 20120912 : COMET P/2012 R1 = P/2006 Q2 (LONEOS)
quai en eps.harvard.edu
quai en eps.harvard.edu
Mie Sep 12 16:31:12 ART 2012
Electronic Telegram No. 3219
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
CBAT Director: Daniel W. E. Green; Hoffman Lab 209; Harvard University;
20 Oxford St.; Cambridge, MA 02138; U.S.A.
e-mail: cbatiau en eps.harvard.edu (alternate cbat en iau.org)
URL http://www.cbat.eps.harvard.edu/index.html
Prepared using the Tamkin Foundation Computer Network
COMET P/2012 R1 = P/2006 Q2 (LONEOS)
G. V. Williams has identified two sets of single-night CCD observations
sent to the Minor Planet Center (tabulated below) as belonging to comet P/2006
Q2 (cf. IAUC 8743).
2012 UT R.A. (2000) Decl. Mag. Observer
Sept.11.94094 0 54 54.48 +23 59 09.2 20.1 Nevski
11.95116 0 54 55.01 +23 59 09.6 20.0 "
11.96140 0 54 55.60 +23 59 10.2 20.2 "
11.97162 0 54 56.13 +23 59 10.3 20.1 "
12.31411 0 55 17.74 +23 59 32.9 19.2 Holmes
12.31991 0 55 18.05 +23 59 33.6 19.4 "
12.32558 0 55 18.34 +23 59 33.7 19.3 "
12.33080 0 55 18.64 +23 59 34.0 19.4 "
V. Nevski, D. Ivanov, A. Novichonok, and I. Kondratenko (ISON-Kislovodsk
Observatory). 0.4-m f/3 reflector.
R. Holmes (Ashmore, IL, U.S.A.). 0.61-m f/4 astrograph. Measured by
T. Vorobjov, L. Buzzi, and S. Foglia.
The indicated correction to the prediction by B. G. Marsden on MPC 65939
is Delta(T) = +0.80 day, and the indicated correction to the prediction by S.
Nakano in the ICQ's 2012 Comet Handbook (p. H10) is +0.45 day. The following
linked orbital elements by Williams are from 153 observations spanning 2006
Aug. 29-2012 Sept. 12 (mean residual 0".5):
Epoch = 2012 Aug. 21.0 TT
T = 2012 Aug. 22.79025 TT Peri. = 97.19375
e = 0.5934750 Node = 245.01358 2000.0
q = 1.3361517 AU Incl. = 5.37352
a = 3.2867635 AU n = 0.16540605 P = 5.96 years
NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
superseded by text appearing later in the printed IAU Circulars.
(C) Copyright 2012 CBAT
2012 September 12 (CBET 3219) Daniel W. E. Green
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