MPEC 2008-E14 : COMET C/2007 Y2 (McNAUGHT)
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M.P.E.C. 2008-E14 Issued 2008 Mar. 3, 03:40 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 http://www.cfa.harvard.edu/iau/mpc.html ISSN 1523-6714
COMET C/2007 Y2 (McNAUGHT)
Observations:
CK07Y020 C2008 02 07.57721 05 28 29.83 -51 59 46.6 18.9 T EE014E12
CK07Y020 C2008 02 29.48150 05 00 56.29 -49 55 15.6 18.4 T EE014423
CK07Y020 C2008 02 29.53793 05 00 53.43 -49 54 51.4 17.9 T EE014423
CK07Y020 C2008 03 02.49271 04 59 12.69 -49 41 44.3 18.5 T EE014423
CK07Y020 C2008 03 02.52205 04 59 11.25 -49 41 31.9 18.2 T EE014423
Observer details:
423 North Ryde. Observer S. G. McAndrew. 0.20-m f/4 hyperbolic astrograph
+ CCD.
E12 Siding Spring Survey. Observers G. J. Garradd, R. H. McNaught. Measurer
R. H. McNaught. 0.5-m Uppsala Schmidt + CCD.
Orbital elements:
C/2007 Y2 (McNaught)
Epoch 2008 Apr. 4.0 TT = JDT 2454560.5
T 2008 Apr. 8.42368 TT MPC
q 4.2089096 (2000.0) P Q
z +0.0008467 Peri. 257.69062 +0.00297022 +0.56501023
+/-0.0000629 Node 303.46228 +0.62062190 -0.64799493
e 0.9964362 Incl. 98.50325 -0.78410435 -0.51075044
Residuals in seconds of arc
071231 E12 0.2- 0.0 080104 I77 0.2- 0.3+ 080126 415 0.1- 0.1+
071231 E12 0.1+ 0.1+ 080104 I77 0.2- 0.7- 080127 423 1.0+ 0.5+
071231 E12 0.3+ 0.1+ 080104 I77 0.1- 0.5- 080127 423 0.0 0.6+
071231 E12 0.5- 0.6- 080105 I77 1.2+ 0.7+ 080128 415 0.5- 0.3-
080101 I77 0.1- 0.1- 080105 I77 1.3+ 1.0+ 080128 415 0.7- 0.2-
080101 I77 0.5- 0.5+ 080107 423 1.3- 0.1- 080207 E12 0.1+ 0.3-
080101 I77 0.2- 0.4+ 080109 423 0.7- 1.1+ 080212 423 0.1+ 0.4-
080101 E12 0.2+ 0.4- 080109 423 0.1- 0.2+ 080212 423 0.1+ 0.0
080101 E12 0.1- 0.2- 080109 E12 0.1+ 0.2- 080212 415 0.4- 0.4-
080101 E12 0.2- 0.3- 080109 E12 0.0 0.4- 080212 415 0.5- 0.3-
080101 E12 0.1+ 0.6- 080110 423 0.0 1.9+ 080215 423 0.2- 0.1-
080102 I77 0.4- 0.3- 080110 423 0.3- 0.8- 080215 423 0.5+ 0.0
080102 I77 0.4- 0.1+ 080115 423 0.2+ 0.3+ 080229 423 0.7- 0.2-
080102 E12 0.5+ 0.2- 080115 423 0.2+ 0.5+ 080229 423 1.1+ 0.9+
080102 E12 0.5+ 0.2+ 080115 415 0.3- 0.5- 080302 423 0.2- 0.2-
080102 E12 0.0 0.4+ 080115 415 0.1- 0.3- 080302 423 0.1+ 0.1+
080102 E12 1.0+ 0.8- 080126 415 0.5+ 0.6-
The "original" and "future" barycentric values of 1/a are +0.001295
and +0.001272 (+/- 0.000063) AU^-1, respectively.
Brian G. Marsden (C) Copyright 2008 MPC M.P.E.C. 2008-E14
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