MPEC 2009-A54 : COMET P/2008 Y3 (McNAUGHT)
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M.P.E.C. 2009-A54 Issued 2009 Jan. 9, 15:57 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 P/2008 Y3 (McNAUGHT)
Observations:
PK08Y030 C2007 12 18.76082 06 15 46.49 +14 02 04.2 17.8 N EA054D35
PK08Y030 C2007 12 18.77058 06 15 46.15 +14 02 00.1 17.5 N EA054D35
PK08Y030 C2007 12 18.78015 06 15 45.74 +14 01 57.8 17.9 N EA054D35
PK08Y030 C2007 12 31.23031 06 07 52.42 +13 03 29.2 18.2 N EA054G96
PK08Y030 C2007 12 31.23448 06 07 52.24 +13 03 27.8 18.3 N EA054G96
PK08Y030 C2007 12 31.23871 06 07 52.10 +13 03 26.8 18.2 N EA054G96
PK08Y030 C2007 12 31.24289 06 07 51.92 +13 03 25.9 18.2 N EA054G96
PK08Y030 C2009 01 08.32576 08 48 09.64 -22 53 28.2 18.2 T EA054673
PK08Y030 C2009 01 08.33227 08 48 09.40 -22 53 30.9 EA054673
PK08Y030 C2009 01 08.33949 08 48 09.20 -22 53 33.5 EA054673
PK08Y030 C2009 01 08.34490 08 48 09.06 -22 53 36.3 EA054673
Observer details:
673 Table Mountain Observatory, Wrightwood. Observer H. Rhoades. 0.61-m f/16
Cassegrain + CCD.
D35 Lulin Observatory. Identification by M. Meyer. 0.41-m f/8.8
Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey. Identification by M. Meyer. 1.5-m reflector + CCD.
Orbital elements:
P/2008 Y3 (McNaught)
Epoch 2009 Jan. 9.0 TT = JDT 2454840.5
T 2009 Jan. 11.93664 TT MPC
q 4.4342276 (2000.0) P Q
n 0.04334402 Peri. 238.27452 -0.59305653 -0.51123355
a 8.0263227 Node 262.93560 +0.76564725 -0.59712555
e 0.4475393 Incl. 38.81373 -0.24913500 -0.61812728
P 22.74
Residuals in seconds of arc
071218 D35 0.0 0.5+ 090101 H01 0.3+ 0.5- 090104 E85 1.1- 0.1+
071218 D35 0.5+ 0.7- 090101 H01 0.6+ 0.8- 090104 E85 0.0 0.2-
071218 D35 0.2- 0.2- 090101 H06 (0.8+ 2.9+) 090104 E12 0.2- 0.1+
071231 G96 0.0 0.2+ 090101 H55 0.7+ 0.6- 090104 E12 0.1- 0.1+
071231 G96 0.2- 0.1- 090101 H55 0.3- 0.3+ 090104 423 0.7- 0.4+
071231 G96 0.1+ 0.1+ 090101 H55 0.4+ 0.1+ 090104 423 0.8- 0.9+
071231 G96 0.2- 0.3+ 090101 F84 1.1+ 0.2+ 090105 423 (1.5- 2.1+)
081231 E12 0.5- 0.5+ 090101 F84 0.1- 0.5- 090105 423 0.3+ 0.8+
081231 E12 0.2+ 0.2- 090101 E12 0.1- 0.2- 090106 J95 0.2- 0.0
081231 E12 0.0 0.1+ 090101 E12 0.5- 0.1+ 090106 J95 0.0 0.3+
081231 E12 0.3- 0.5+ 090101 355 0.2- 0.2+ 090106 J95 0.0 0.4+
081231 114 (2.3+ 0.1-) 090101 355 0.2+ 0.4- 090107 E85 (3.8+ 2.0+)
081231 114 0.8+ 0.2- 090101 355 0.2- 0.3+ 090107 E85 1.2- 1.7+
090101 854 0.2+ 0.3+ 090101 355 0.5- 0.1+ 090107 E85 (0.4+ 2.1-)
090101 H06 0.4- 0.5- 090101 E12 0.1- 0.2+ 090107 673 0.6+ 0.5-
090101 854 0.2+ 0.1- 090101 349 0.2- 1.0+ 090107 673 0.1- 0.1-
090101 H06 0.7- 0.5- 090101 349 0.5- 0.6+ 090107 673 0.3+ 0.5-
090101 H06 0.6- 1.1- 090101 E12 0.2- 0.2+ 090107 673 0.3+ 0.1-
090101 854 0.1- 0.1- 090102 204 0.1+ 0.0 090107 900 0.8- 0.5-
090101 H01 0.6+ 0.2- 090102 204 0.1+ 0.2- 090107 900 0.4- 0.4+
090101 448 0.0 0.0 090102 E12 0.2- 0.1+ 090108 673 0.6+ 0.5-
090101 448 0.2+ 0.4- 090103 372 0.2+ 0.8- 090108 673 0.2+ 0.7-
090101 H06 (3.4+ 1.0-) 090103 372 (2.3+ 0.5-) 090108 673 0.7+ 0.6-
090101 448 0.4+ 0.4+ 090103 372 0.4+ 1.0- 090108 673 1.3+ 1.3-
090101 H01 0.2+ 0.7- 090104 E85 0.5+ 0.5+
Ephemeris:
P/2008 Y3 (McNaught)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2009 01 09 08 47.80 -22 57.7 3.735 4.434 130.2 9.7 17.8
2009 01 19 08 42.00 -23 50.8 3.686 4.434 134.8 9.1 17.8
2009 01 29 08 35.69 -24 24.5 3.658 4.435 137.5 8.6 17.8
2009 02 08 08 29.38 -24 38.3 3.655 4.437 137.9 8.6 17.8
2009 02 18 08 23.58 -24 33.7 3.675 4.439 136.0 8.9 17.8
2009 02 28 08 18.74 -24 13.2 3.716 4.442 132.1 9.5 17.8
2009 03 10 08 15.23 -23 40.5 3.778 4.445 126.9 10.3 17.9
2009 03 20 08 13.26 -22 59.8 3.857 4.449 120.8 11.1 17.9
2009 03 30 08 12.92 -22 15.1 3.950 4.454 114.2 11.8 18.0
2009 04 09 08 14.22 -21 30.1 4.055 4.460 107.5 12.4 18.0
2009 04 19 08 17.06 -20 47.9 4.169 4.466 100.7 12.8 18.1
2009 04 29 08 21.33 -20 10.8 4.287 4.473 94.0 13.0 18.2
Brian G. Marsden (C) Copyright 2009 MPC M.P.E.C. 2009-A54
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