MPEC 2004-J09 : COMET C/2004 F4 (BRADFIELD)
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M.P.E.C. 2004-J09 Issued 2004 May 1, 18:33 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.
Supported in part by the Steven and Michele Kirsch Foundation
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
COMET C/2004 F4 (BRADFIELD)
Observations:
CK04F040 C2004 04 24.14326 01 05 49.86 +24 06 31.1 EJ009204
CK04F040 C2004 04 24.14433 01 05 49.73 +24 06 38.6 EJ009204
CK04F040 C2004 04 24.14566 01 05 49.54 +24 06 46.9 EJ009204
CK04F040 C2004 04 24.78769 01 04 15.80 +25 16 52.5 4.0 T EJ009349
CK04F040 C2004 04 24.78811 01 04 15.76 +25 16 55.6 EJ009349
CK04F040 C2004 04 24.78944 01 04 15.60 +25 17 03.8 EJ009349
CK04F040 C2004 04 24.78976 01 04 15.56 +25 17 05.8 EJ009349
CK04F040 C2004 04 24.81594 01 04 12.10 +25 19 52.7 EJ009D70
CK04F040 C2004 04 24.81696 01 04 12.09 +25 20 00.9 EJ009D70
CK04F040 C2004 04 24.81800 01 04 11.82 +25 20 03.7 EJ009D70
CK04F040 C2004 04 25.13662 01 03 31.16 +25 53 03.5 EJ009204
CK04F040 C2004 04 25.14767 01 03 29.92 +25 54 08.4 EJ009204
CK04F040 C2004 04 25.14870 01 03 29.77 +25 54 14.2 EJ009204
CK04F040 C2004 04 25.15058 01 03 29.53 +25 54 25.7 8 N EJ009204
CK04F040 C2004 04 25.17056 01 03 26.92 +25 56 30.0 8.9 N EJ009J76
CK04F040 C2004 04 25.17159 01 03 26.83 +25 56 35.7 9.0 N EJ009J76
CK04F040 C2004 04 25.17263 01 03 26.89 +25 56 43.5 9.1 N EJ009J76
CK04F040 C2004 04 25.78563 01 02 19.17 +26 56 58.1 4.6 T EJ009349
CK04F040 C2004 04 25.78826 01 02 18.89 +26 57 13.5 EJ009349
CK04F040 C2004 04 25.79161 01 02 18.57 +26 57 32.9 EJ009349
CK04F040 C2004 04 25.79469 01 02 18.26 +26 57 50.0 EJ009349
CK04F040 C2004 04 28.11275 00 59 33.29 +30 16 04.5 8.9 N EJ009235
CK04F040 C2004 04 28.78670 00 59 06.60 +31 06 29.6 6.7 T EJ009355
CK04F040 C2004 04 28.78742 00 59 06.59 +31 06 33.1 EJ009355
CK04F040 C2004 04 28.78810 00 59 06.55 +31 06 35.8 EJ009355
CK04F040 C2004 04 28.79119 00 59 06.42 +31 06 49.2 5.9 T EJ009349
CK04F040 C2004 04 28.79133 00 59 06.44 +31 06 49.5 EJ009340
CK04F040 C2004 04 28.79146 00 59 06.41 +31 06 50.1 EJ009349
CK04F040 C2004 04 28.79189 00 59 06.37 +31 06 52.1 EJ009349
CK04F040 C2004 04 28.79197 00 59 06.36 +31 06 52.4 EJ009D70
CK04F040 C2004 04 28.79213 00 59 06.36 +31 06 53.5 EJ009349
CK04F040 C2004 04 28.79214 00 59 06.48 +31 06 53.3 EJ009340
CK04F040 C2004 04 28.79294 00 59 06.45 +31 06 56.1 6.1 T EJ009340
CK04F040 C2004 04 28.79328 00 59 06.37 +31 06 57.2 EJ009D70
CK04F040 C2004 04 28.80113 00 59 06.12 +31 07 31.9 EJ009D70
CK04F040 C2004 04 28.80325 00 59 06.04 +31 07 42.3 EJ009D70
CK04F040 C2004 04 29.77127 00 58 40.74 +32 15 14.7 6.7 T EJ009355
CK04F040 C2004 04 29.77455 00 58 40.75 +32 15 28.4 EJ009355
CK04F040 C2004 04 29.77535 00 58 40.68 +32 15 32.1 EJ009355
CK04F040 C2004 04 29.78236 00 58 40.55 +32 15 59.6 EJ009349
CK04F040 C2004 04 29.78273 00 58 40.54 +32 16 01.3 EJ009349
CK04F040 C2004 04 29.78310 00 58 40.52 +32 16 02.8 EJ009349
CK04F040 C2004 04 29.78346 00 58 40.52 +32 16 04.2 6.3 T EJ009349
Observer details:
204 Schiaparelli Observatory. Observer L. Buzzi. 0.60-m f/4.64 Newtonian
+ CCD.
235 CAST Observatory, Talmassons. Observers R. Ligustri, R. Turchetti,
V. Savani, G. Degano. 0.35-m f/5 reflector + CCD.
340 Toyonaka. Observer Y. Ezaki. 0.30-m f/6 reflector + CCD.
349 Ageo. Observer K. Kadota. 0.18-m f/5.5 reflector + CCD, 0.25-m f/5.0
reflector + CCD.
355 Hadano. Observer A. Asami. 0.28-m f/5.0 reflector + CCD.
D70 Tosa. Observer S. Shimomoto. 0.20-m f/6.3 Schmidt-Cassegrain + CCD.
J76 La Murta. Observer S. Pastor, J. A. Reyes. 0.40-m f/3.3
Schmidt-Cassegrain + CCD.
Orbital elements:
C/2004 F4 (Bradfield)
T 2004 Apr. 17.0942 TT MPC
q 0.167952 (2000.0) P Q
Peri. 332.7622 -0.7926948 -0.0630595
Node 222.8061 -0.2527960 -0.8710839
e 1.0 Incl. 63.1662 -0.5547334 +0.4870691
From 42 observations 2004 Apr. 23-29.
Ephemeris:
C/2004 F4 (Bradfield)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2004 04 25 01 03.80 +25 39.0 0.934 0.346 20.1 91.7 5.2
2004 04 27 01 00.60 +28 46.2 0.985 0.405 23.5 81.2 6.0
2004 04 29 00 58.99 +31 21.9 1.037 0.463 26.2 73.4 6.7
2004 05 01 00 58.44 +33 34.1 1.087 0.520 28.4 67.3 7.3
2004 05 03 00 58.63 +35 28.6 1.136 0.574 30.3 62.4 7.9
2004 05 05 00 59.34 +37 09.5 1.184 0.628 32.0 58.4 8.3
2004 05 07 01 00.42 +38 39.7 1.230 0.679 33.5 55.1 8.8
2004 05 09 01 01.75 +40 01.3 1.274 0.730 34.9 52.3 9.2
2004 05 11 01 03.26 +41 15.9 1.317 0.779 36.2 49.9 9.5
2004 05 13 01 04.89 +42 24.8 1.358 0.828 37.4 47.9 9.8
2004 05 15 01 06.60 +43 29.0 1.398 0.875 38.5 46.1 10.1
2004 05 17 01 08.35 +44 29.2 1.436 0.921 39.7 44.5 10.4
2004 05 19 01 10.11 +45 25.9 1.473 0.967 40.7 43.1 10.7
2004 05 21 01 11.87 +46 19.8 1.508 1.011 41.8 41.8 10.9
2004 05 23 01 13.60 +47 11.1 1.542 1.055 42.8 40.7 11.2
2004 05 25 01 15.30 +48 00.2 1.575 1.098 43.9 39.7 11.4
Brian G. Marsden (C) Copyright 2004 MPC M.P.E.C. 2004-J09
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