[IAUC] CBET 1831: 20090603 : COMET P/2009 L1 (LINEAR)
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Mie Jun 3 16:50:02 ART 2009
Electronic Telegram No. 1831
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS en CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT en CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html
COMET P/2009 L1 (LINEAR)
L. Elenin, Lyubertsy, Moscow region, Russia, reports the recovery of
comet P/2002 JN16 (cf. IAUC 7907) on CCD images obtained remotely with the
0.36-m /3.8 Maksutov-Newtonian telescope at Tzec Maun Observatory (near
Mayhill, NM, USA). The recovery was confirmed by M. Schwartz with the 0.81-m
f/7 Ritchey-Chretien reflector at Tenagra Observatory (near Rio Rico, AZ, USA;
observatory code 926), whose images clearly show a tail of length about 35"
in p.a. 248 degrees. The available astrometry are as follows:
Packed Desig. Date UT R.A. (2000.0) Decl. Mag. Obs
PK09L010 C2009 06 01.39819 23 26 08.23 +08 37 27.6 20.5 H10
PK09L010 C2009 06 01.41600 23 26 09.64 +08 37 39.6 19.9 H10
PK09L010 C2009 06 01.43565 23 26 11.10 +08 37 51.6 20.2 H10
PK09L010 C2009 06 03.38940 23 28 47.10 +09 00 47.5 20.2 H10
PK09L010 C2009 06 03.40007 23 28 47.78 +09 00 55.4 20.2 H10
PK09L010 C2009 06 03.43354 23 28 50.52 +09 01 19.5 20.4 926
PK09L010 C2009 06 03.44583 23 28 51.53 +09 01 28.4 20.6 926
PK09L010 C2009 06 03.45816 23 28 52.37 +09 01 36.1 20.3 926
The correction to the predictions on MPC 56802 and in the 2008/2009 Comet
Handbook is Delta(T) = -0.2 day. The following orbital elements by B. G.
Marsden are from 160 observations spanning 2002-2009 (mean residual 0".6):
P/2002 JN16 = 2009 L1 (LINEAR)
Epoch 2002 July 25.0 TT = JDT 2452480.5
T 2002 July 27.59252 TT MPC
q 1.7905750 (2000.0) P Q
n 0.15153589 Peri. 39.62647 -0.01484426 +0.98830761
a 3.4843815 Node 230.07711 -0.96024365 -0.05640265
e 0.4861140 Incl. 11.41248 -0.27876833 +0.14165740
P 6.50
Epoch 2009 Jan. 9.0 TT = JDT 2454840.5
T 2009 Jan. 24.88878 TT MPC
q 1.7836977 (2000.0) P Q
n 0.15190035 Peri. 39.69673 -0.01439329 +0.98831667
a 3.4788059 Node 230.03375 -0.96032108 -0.05593381
e 0.4872673 Incl. 11.41862 -0.27852513 +0.14178001
P 6.49
Residuals in seconds of arc
K024E 608 0.5+ 0.2+ K025M 568 (1.4- 4.1+) K026B 204 0.5+ 0.3-
K024E 608 0.4+ 0.6+ K025U 699 0.4- 0.3+ K026B 204 0.2+ 0.4-
K024E 608 0.2+ 0.1+ K025U 699 0.3- 0.2+ K026B 204 0.3+ 0.1-
K024E 644 (3.8+ 0.7-) K025U 699 0.1+ 0.4- K026G 620 0.4- 0.8-
K024P 608 0.4- 0.7- K025U 699 0.1- 0.4- K026G 620 0.7- 0.4-
K024P 644 (3.4+ 1.1-) K025V 215 0.0 0.2+ K026G 620 0.0 1.2-
K024P 608 0.4- 0.1- K025V 215 0.5- 0.2- K026I 118 0.6+ 0.4-
K024P 644 (3.2+ 0.1+) K025V 215 0.2- 0.0 K026I 118 0.3+ 0.2+
K024P 608 0.3+ 0.8+ K025V 213 0.2+ 0.6- K026M 246 0.7- 0.3-
K024P 644 (3.2+ 0.7-) K025V 213 0.2- 0.4- K026M 246 0.1+ 0.2-
K0259 704 0.1- 0.2- K0261 170 0.0 0.3- K026M 246 0.4+ 0.3-
K0259 704 0.5- 0.4+ K0261 170 0.2- 0.7- K026M 246 0.4+ 0.2+
K0259 704 0.7- 1.0+ K0261 360 0.4- 0.7- K026M 246 0.3- 0.2+
K0259 704 0.0 0.1- K0261 360 0.1- 0.6- K026P 608 0.4+ 1.0-
K0259 704 0.4- 0.5- K0261 232 0.3+ 0.8+ K026P 608 0.7+ 0.6-
K0259 644 0.2- 0.8- K0261 232 0.7- 1.5+ K026P 608 0.6+ 0.6-
K0259 644 0.1- 1.0- K0262 644 0.1- 0.3+ K0271 170 0.3+ 0.5-
K0259 644 0.4- 1.2- K0262 644 0.1- 0.4+ K0271 170 0.3- 0.3+
K025A 704 0.6- 0.2+ K0262 644 0.2+ 1.0+ K0277 170 0.1+ 1.6-
K025A 704 0.6- 0.1+ K0263 644 0.3+ 0.0 K0277 170 0.5- 0.2-
K025A 704 0.8- 0.3+ K0263 644 0.0 0.1- K0277 246 0.3- 0.2+
K025A 704 (2.6+ 0.4-) K0263 644 0.8- 0.2- K0277 246 0.1- 0.1-
K025B 704 0.2+ 0.6+ K0265 699 (0.6+ 3.4-) K0277 246 0.4- 0.0
K025B 704 0.0 0.6+ K0265 699 0.5+ 0.1+ K0277 246 0.3- 0.2+
K025B 704 0.5+ 0.2+ K0265 699 0.5+ 0.4- K0277 246 0.3- 0.0
K025B 704 0.5- 0.1- K0265 704 0.7+ 0.1- K0279 704 0.8- 0.8+
K025B 704 0.4- 0.1+ K0265 699 0.3+ 0.0 K0279 704 1.3- 0.0
K025C 704 0.4+ 0.4+ K0265 704 0.4+ 0.1+ K0279 704 0.3+ 0.0
K025C 704 0.1+ 0.1- K0265 704 0.7+ 0.1- K0279 704 1.1- 0.6+
K025C 704 0.4- 0.6+ K0265 704 0.4+ 0.1- K0279 704 0.2- 0.5+
K025C 704 0.2- 0.0 K0265 704 0.4+ 0.3+ K027N 170 0.9+ 0.2+
K025C 704 0.4- 0.8+ K0265 360 0.3- 0.8- K027N 170 0.1- 0.8+
K025C 704 0.3- 0.7+ K0265 360 0.5- 0.7- K027Q 170 0.1+ 0.8-
K025C 704 0.3- 0.2+ K0266 704 0.3+ 0.4+ K027Q 170 1.1- 0.6-
K025C 704 0.6- 0.0 K0266 704 0.7+ 0.3+ K027Q 170 0.2- 0.5-
K025D 704 0.1+ 0.9+ K0266 704 0.4+ 0.8+ K027Q 170 1.9- 0.3+
K025D 704 0.3- 0.7+ K0266 704 0.5+ 0.7+ K0283 170 0.1- 0.1-
K025D 704 0.6- 0.9+ K0266 704 0.6+ 1.2+ K0283 170 (1.1+ 2.2+)
K025D 704 0.3- 0.6+ K0267 704 0.1- 0.0 K0285 360 0.8- 0.3+
K025D 704 0.9+ 0.8+ K0267 704 0.6+ 0.2- K0285 360 1.1- 0.2+
K025E 704 0.1- 0.1+ K0267 704 0.6- 0.9+ K0288 170 0.8+ 0.7+
K025E 704 0.4- 0.1- K0268 170 0.4- 1.2- K0288 170 (2.8- 0.1+)
K025E 704 0.4- 0.3+ K0269 170 0.5+ 1.5- K0288 170 0.7- 0.3+
K025E 704 0.1+ 0.2+ K0269 704 0.5+ 0.2+ K028B 848 (2.6- 0.6-)
K025G 704 0.4+ 0.2- K0269 704 0.4+ 0.3+ K028B 848 0.2+ 0.6+
K025G 704 0.7- 0.5- K0269 704 0.4+ 0.0 K028B 848 0.8+ 0.1-
K025G 704 0.3+ 0.5- K0269 704 0.3+ 0.1+ K0291 848 1.8+ 0.5-
K025G 704 0.0 0.5- K0269 704 (3.9+ 2.8-) K0291 848 1.1+ 0.8+
K025G 704 0.3- 0.0 K0269 349 0.8+ 0.5- K0961 H10 0.4- 0.4+
K025H 675 1.3- 0.4+ K0269 349 0.2+ 0.5- K0961 H10 0.6- 0.2-
K025H 608 0.0 0.3- K0269 349 0.4- 0.8- K0961 H10 (2.3- 2.2-)
K025H 608 0.2+ 0.9- K026A 704 1.3+ 1.0+ K0963 H10 0.9+ 0.1-
K025H 608 0.5+ 1.0- K026A 704 0.9+ 0.2+ K0963 H10 1.4- 0.3+
K025L 704 0.2- 0.2+ K026A 704 1.2+ 0.5+ K0963 926 0.3+ 0.9+
K025L 704 0.7- 0.4+ K026A 704 1.1+ 1.0- K0963 926 1.1+ 1.2+
K025L 704 0.0 0.4+ K026A 704 1.2+ 1.0+ K0963 926 0.6- 0.3+
K025L 704 0.0 0.5+ K026B 213 0.4- 1.3-
K025L 704 0.5- 1.0+ K026B 213 1.1+ 0.3-
The following ephemeris assumes H_8 = 14.0 (from the 2002 apparition):
Date TT R. A. (2000) Decl. Delta r Elong. Phase Mag.
2009 05 29 23 21.47 +07 56.8 2.131 2.087 73.6 27.8 18.2
2009 06 08 23 34.65 +09 53.4 2.071 2.130 79.3 27.9 18.2
2009 06 18 23 46.09 +11 39.7 2.008 2.175 85.4 27.7 18.2
2009 06 28 23 55.58 +13 13.9 1.942 2.222 91.9 27.2 18.2
2009 07 08 00 02.88 +14 33.9 1.876 2.270 99.1 26.3 18.2
2009 07 18 00 07.78 +15 37.6 1.811 2.319 106.8 24.8 18.2
2009 07 28 00 10.05 +16 22.3 1.751 2.368 115.2 22.8 18.2
2009 08 07 00 09.60 +16 45.0 1.698 2.418 124.2 20.3 18.2
2009 08 17 00 06.51 +16 43.3 1.656 2.469 133.9 17.2 18.2
2009 08 27 00 01.09 +16 15.6 1.631 2.520 144.1 13.6 18.3
2009 09 06 23 53.99 +15 22.7 1.626 2.571 154.2 9.8 18.3
2009 09 16 23 46.10 +14 08.5 1.645 2.623 162.9 6.5 18.4
2009 09 26 23 38.40 +12 39.8 1.690 2.674 166.0 5.2 18.6
2009 10 06 23 31.83 +11 05.8 1.763 2.726 160.5 7.0 18.7
2009 10 16 23 27.04 +09 35.1 1.862 2.777 151.2 10.0 18.9
2009 10 26 23 24.41 +08 14.6 1.984 2.828 141.2 12.7 19.1
2009 11 05 23 24.05 +07 09.1 2.127 2.879 131.2 15.0 19.3
2009 11 15 23 25.85 +06 20.3 2.288 2.930 121.6 16.7 19.5
2009 11 25 23 29.60 +05 48.6 2.461 2.980 112.4 17.8 19.7
2009 12 05 23 35.05 +05 33.1 2.644 3.030 103.5 18.4 20.0
2009 12 15 23 41.94 +05 32.1 2.833 3.080 95.0 18.6 20.2
2009 12 25 23 50.02 +05 44.0 3.025 3.129 86.8 18.3 20.4
2010 01 04 23 59.08 +06 06.7 3.216 3.177 78.9 17.7 20.6
2010 01 14 00 08.93 +06 38.6 3.405 3.226 71.2 16.8 20.7
NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
superseded by text appearing later in the printed IAU Circulars.
(C) Copyright 2009 CBAT
2009 June 3 (CBET 1831) Daniel W. E. Green
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