MPEC 2008-R09 : COMET P/2001 R1 = 2008 Q4 (LONEOS)
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M.P.E.C. 2008-R09 Issued 2008 Sept. 1, 20:44 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/2001 R1 = 2008 Q4 (LONEOS)
Observations:
PK01R010 C2001 08 09.42387 22 11 27.16 -23 35 23.1 ER009644
PK01R010 C2001 08 14.35814 22 06 42.45 -24 06 30.1 18.7 N ER009644
PK01R010 C2001 08 14.36850 22 06 41.79 -24 06 34.2 18.5 N ER009644
PK01R010 C2001 08 14.37922 22 06 41.07 -24 06 38.3 18.9 N ER009644
PK08Q040 C2008 08 31.08719 07 39 31.16 +25 12 23.9 16.5 N ER009A71
PK08Q040 C2008 09 01.09417 07 43 02.59 +25 07 32.9 16.7 N ER009B40
PK08Q040 C2008 09 01.09919 07 43 03.68 +25 07 31.2 16.5 N ER009B40
PK08Q040 C2008 09 01.10472 07 43 04.87 +25 07 28.8 16.6 N ER009B40
PK08Q040 C2008 09 01.11482 07 43 07.03 +25 07 25.9 16.7 N ER009B40
PK08Q040 C2008 09 01.12415 07 43 08.93 +25 07 24.2 16.8 N ER009B40
PK08Q040 C2008 09 01.13355 07 43 10.86 +25 07 21.2 16.9 N ER009B40
PK08Q040 C2008 09 01.14201 07 43 12.65 +25 07 18.9 16.9 N ER009B40
PK08Q040 C2008 09 01.15058 07 43 14.41 +25 07 16.2 16.6 N ER009B40
Observer details:
644 Palomar Mountain/NEAT. Observers E. F. Helin, S. Pravdo, K. Lawrence,
M. Hicks, E. Hovland, T. Bickler, J. Schroeder, L. Scherr, R. Thicksten,
A. Deetz. Measurer M. Meyer. 1.2-m Schmidt + CCD.
A71 Stixendorf. Observer M. Jaeger. Measurer W. Vollmann. 0.20-m f/2.8
reflector + CCD.
B40 Skylive Observatory, Catania. Observers G. Sostero, E. Guido,
P. Camilleri, V. Gonano. Measurers G. Sostero, E. Guido, P. Camilleri.
0.30-m f/6.6 reflector + CCD.
Orbital elements:
P/2001 R1 = 2008 Q4 (LONEOS)
Epoch 2002 Feb. 15.0 TT = JDT 2452320.5
T 2002 Feb. 17.57302 TT MPC
q 1.3605094 (2000.0) P Q
n 0.15201657 Peri. 24.73674 +0.49843697 -0.86400164
a 3.4770326 Node 35.48757 +0.77359701 +0.40623616
e 0.6087154 Incl. 7.03954 +0.39129049 +0.29744470
P 6.48
Epoch 2008 Aug. 2.0 TT = JDT 2454680.5
T 2008 Aug. 4.75864 TT MPC
q 1.3450220 (2000.0) P Q
n 0.15293122 Peri. 24.96264 +0.49783421 -0.86438145
a 3.4631551 Node 35.30168 +0.77374009 +0.40581206
e 0.6116195 Incl. 7.03254 +0.39177463 +0.29691967
P 6.44
Residuals in seconds of arc
010809 644 0.4- 0.8- 010919 402 0.2- 0.9- 011215 587 0.4+ 0.3-
010814 644 0.4- 0.9- 010919 402 0.0 0.1+ 020105 360 1.8- 0.5-
010814 644 0.4- 1.2- 010919 402 0.4+ 0.5+ 020105 360 1.4- 0.5-
010814 644 1.0- 1.3- 010924 428 0.7+ 0.3+ 020105 215 0.3- 0.6-
010819 704 0.9- 0.6- 010924 428 0.2+ 0.2- 020105 215 0.6- 0.2-
010819 704 0.6- 0.1- 010925 704 2.0- 0.4- 020105 215 1.0+ 0.9-
010819 704 1.0- 0.7+ 010925 704 0.3- 0.7- 020112 349 0.4+ 1.1-
010819 704 0.5- 1.4+ 010925 704 0.1+ 0.5- 020112 349 1.1+ 0.1+
010819 704 1.5- 1.7+ 010925 704 0.0 0.9- 020114 921 (5.0- 3.3+)
010910 699 0.1- 0.0 010925 704 0.7- 1.7- 020114 921 (2.8- 0.7-)
010910 699 1.1+ 1.1+ 011008 170 1.9+ 1.5+ 020114 921 0.0 0.5+
010910 699 1.1+ 1.6+ 011008 170 1.2+ 0.4+ 020114 921 0.0 1.9+
010910 699 0.6+ 0.0 011014 699 1.3+ 0.9+ 020201 360 0.8- 0.7-
010911 918 0.7+ 0.3- 011014 699 (4.5+ 2.1+) 020201 360 1.1- 0.7-
010911 918 0.5+ 0.2+ 011014 699 (2.4+ 2.3+) 020203 113 0.5- 0.5-
010911 918 0.6+ 0.7- 011014 699 (3.4+ 1.5+) 020203 113 0.6+ 0.1+
010911 918 1.6+ 0.0 011015 608 0.1- 1.1- 020203 113 0.4+ 0.3+
010911 704 0.5- 0.1+ 011015 608 1.3+ 0.2+ 020203 113 0.2+ 0.2+
010911 649 0.5- 1.0- 011015 608 2.0+ 0.5+ 020203 113 0.6+ 0.1+
010911 704 0.2- 0.3+ 011020 704 (2.5+ 1.4+) 020206 402 0.3+ 0.4-
010911 649 0.4- 0.7- 011020 704 1.1+ 1.4+ 020206 402 1.8+ 0.6-
010911 704 0.1- 0.5+ 011020 704 1.8+ 0.9+ 020206 402 0.0 0.5-
010911 649 0.3- 1.0- 011020 704 (2.3+ 1.7+) 020209 340 0.4- 0.8+
010911 704 0.3- 0.2- 011023 704 0.4+ 1.3+ 020209 340 0.2- 0.3+
010911 704 0.3+ 0.3+ 011023 704 0.6+ 0.9+ 020210 349 1.0+ 0.2+
010911 474 0.4+ 0.1- 011023 696 0.8- 0.5- 020210 349 1.0+ 1.2+
010911 474 0.1+ 0.4- 011023 696 1.2- 0.2- 020210 349 1.7+ 1.2+
010911 474 0.2- 0.0 011023 704 0.5- 1.6+ 020211 921 (4.2- 4.2-)
010911 474 0.0 0.1- 011023 704 1.0- 1.0+ 020211 921 0.3+ 0.4+
010914 941 1.9- 0.2- 011104 844 0.5- 1.4- 020215 360 0.8- 0.5-
010914 941 (2.1- 0.2+) 011104 844 0.0 1.8- 020215 360 1.3- 0.5-
010914 941 0.0 0.4+ 011104 844 1.2- 0.7+ 020220 340 0.6- 0.3+
010914 941 0.3+ 0.6+ 011106 704 0.3- 0.4- 020220 340 1.1- 1.4-
010915 170 0.2+ 1.5- 011106 704 0.3+ 0.6+ 020309 360 0.2+ 0.5+
010915 170 1.3+ 0.5+ 011106 704 0.0 0.1+ 020309 360 0.3- 0.2+
010915 170 (2.3+ 1.5+) 011110 300 0.6+ 0.0 020311 215 1.0- 0.7+
010916 372 (2.1+ 1.5+) 011110 300 (2.8+ 1.1+) 020311 215 0.6+ 0.5+
010916 372 (2.6+ 1.9+) 011118 608 0.9- 0.1- 020311 215 0.4+ 0.3+
010916 360 0.0 0.0 011118 608 1.2- 0.7- 080831 A71 1.3- 0.0
010916 372 1.7+ 1.1+ 011118 608 1.0- 0.4- 080901 B40 0.6- 0.2+
010916 360 0.0 0.2- 011119 349 1.3- 1.0+ 080901 B40 0.1- 0.1-
010917 428 0.4+ 0.2- 011119 349 0.9- 0.3+ 080901 B40 0.4+ 0.9-
010917 428 0.7+ 0.0 011121 921 (3.4+ 2.4+) 080901 B40 1.0+ 0.9-
010917 402 0.7- 1.0- 011121 921 (3.3+ 0.3+) 080901 B40 0.4+ 0.1+
010917 402 1.5- 0.9+ 011202 118 0.8+ 0.2+ 080901 B40 0.1- 0.2-
010918 422 0.1- 0.6- 011202 118 0.1+ 0.1- 080901 B40 0.3+ 0.0
010918 422 0.4+ 0.5- 011209 921 1.7+ 1.2+ 080901 B40 0.1- 0.2-
010918 422 0.2- 0.0 011215 587 1.3- 0.6-
Ephemeris:
P/2001 R1 = 2008 Q4 (LONEOS)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2008 09 01 07 42.71 +25 08.1 1.881 1.381 45.8 31.6 16.8
2008 09 11 08 16.58 +24 07.0 1.876 1.412 47.7 31.9 16.9
2008 09 21 08 48.22 +22 46.7 1.872 1.450 50.1 32.1 17.0
2008 10 01 09 17.49 +21 13.5 1.867 1.495 53.0 32.3 17.1
2008 10 11 09 44.31 +19 33.4 1.858 1.547 56.3 32.5 17.2
2008 10 21 10 08.71 +17 51.6 1.845 1.603 60.2 32.6 17.4
2008 10 31 10 30.74 +16 12.8 1.826 1.663 64.6 32.6 17.5
2008 11 10 10 50.38 +14 40.8 1.801 1.727 69.6 32.5 17.6
2008 11 20 11 07.63 +13 19.1 1.769 1.793 75.3 32.2 17.8
2008 11 30 11 22.40 +12 10.4 1.730 1.861 81.5 31.6 17.9
2008 12 10 11 34.54 +11 17.5 1.686 1.930 88.5 30.7 18.0
2008 12 20 11 43.86 +10 42.2 1.638 2.001 96.3 29.3 18.1
2008 12 30 11 50.11 +10 26.3 1.590 2.072 104.8 27.3 18.2
2009 01 09 11 53.03 +10 30.6 1.543 2.143 114.2 24.7 18.3
2009 01 19 11 52.46 +10 54.4 1.504 2.215 124.5 21.5 18.3
2009 01 29 11 48.38 +11 35.1 1.476 2.286 135.6 17.6 18.4
2009 02 08 11 41.13 +12 27.5 1.466 2.357 147.3 13.1 18.6
2009 02 18 11 31.46 +13 23.9 1.479 2.428 159.0 8.4 18.7
2009 02 28 11 20.47 +14 16.1 1.518 2.498 169.1 4.3 18.9
2009 03 10 11 09.48 +14 56.4 1.586 2.567 168.9 4.3 19.1
2009 03 20 10 59.72 +15 20.4 1.681 2.636 159.2 7.7 19.3
2009 03 30 10 52.04 +15 26.9 1.803 2.704 148.3 11.2 19.6
2009 04 09 10 46.89 +15 16.7 1.947 2.771 137.7 14.1 19.9
2009 04 19 10 44.33 +14 52.5 2.110 2.838 127.7 16.3 20.2
Brian G. Marsden (C) Copyright 2008 MPC M.P.E.C. 2008-R09
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