MPEC 2004-K64 : COMET C/2001 Q4 (NEAT)
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M.P.E.C. 2004-K64 Issued 2004 May 29, 14:23 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/2001 Q4 (NEAT)
Observations:
CK01Q040 C2004 05 08.96144 07 46 42.62 -06 39 47.1 EK064834
CK01Q040 C2004 05 08.97243 07 46 48.53 -06 36 29.1 EK064834
CK01Q040 C2004 05 14.46713 08 28 42.96 +16 36 28.8 8.0 N EK064379
CK01Q040 C2004 05 14.48549 08 28 49.90 +16 40 06.8 8.5 N EK064379
CK01Q040 C2004 05 14.94885 08 31 43.57 +18 10 19.4 EK064834
CK01Q040 C2004 05 14.96462 08 31 49.29 +18 13 17.8 EK064834
CK01Q040 C2004 05 15.84898 08 37 05.30 +20 52 53.5 7.2 N EK064J74
CK01Q040 C2004 05 15.85936 08 37 09.04 +20 54 41.0 6.8 N EK064J74
CK01Q040 C2004 05 15.86209 08 37 09.89 +20 55 12.1 6.8 N EK064J74
CK01Q040 C2004 05 16.86998 08 42 49.83 +23 40 29.5 5.3 N EK064J74
CK01Q040 C2004 05 16.87423 08 42 51.11 +23 41 07.9 5.4 N EK064J74
CK01Q040 C2004 05 17.89387 08 48 12.75 +26 11 48.1 9.3 N EK064A32
CK01Q040 C2004 05 17.89525 08 48 13.17 +26 12 00.0 9.4 N EK064A32
CK01Q040 C2004 05 17.89664 08 48 13.58 +26 12 11.5 9.3 N EK064A32
CK01Q040 C2004 05 17.89677 08 48 13.63 +26 12 12.5 EK064621
CK01Q040 C2004 05 17.89766 08 48 13.91 +26 12 19.9 EK064621
CK01Q040 C2004 05 17.89873 08 48 14.20 +26 12 28.9 9.2 N EK064A32
CK01Q040 C2004 05 17.90034 08 48 14.72 +26 12 42.6 EK064621
CK01Q040 C2004 05 17.90123 08 48 14.96 +26 12 49.9 10 N EK064621
CK01Q040 2004 05 18.47410 08 51 07.01 +27 30 59.4 5.9 T EK064370
CK01Q040 2004 05 18.48007 08 51 08.75 +27 31 47.8 5.9 T EK064370
CK01Q040 2004 05 18.48160 08 51 09.21 +27 31 58.9 5.9 T EK064370
CK01Q040 C2004 05 19.83156 08 57 32.17 +30 18 51.9 EK064160
CK01Q040 C2004 05 19.83207 08 57 32.33 +30 18 55.3 EK064160
CK01Q040 C2004 05 19.83258 08 57 32.46 +30 18 58.8 EK064160
CK01Q040 C2004 05 19.83314 08 57 32.62 +30 19 02.8 EK064160
CK01Q040 C2004 05 19.83365 08 57 32.75 +30 19 06.1 EK064160
CK01Q040 C2004 05 19.83616 08 57 33.42 +30 19 23.4 EK064160
CK01Q040 C2004 05 19.83690 08 57 33.60 +30 19 28.7 EK064160
CK01Q040 C2004 05 19.85451 08 57 38.40 +30 21 29.0 EK064A46
CK01Q040 C2004 05 19.85520 08 57 38.57 +30 21 33.5 EK064A46
CK01Q040 C2004 05 19.85588 08 57 38.77 +30 21 38.5 EK064A46
CK01Q040 C2004 05 19.85723 08 57 39.14 +30 21 47.7 EK064A46
CK01Q040 C2004 05 19.85792 08 57 39.30 +30 21 52.2 EK064A46
CK01Q040 C2004 05 19.85927 08 57 39.67 +30 22 01.8 EK064A46
CK01Q040 C2004 05 21.51794 09 04 49.25 +33 18 35.2 EK064D83
CK01Q040 C2004 05 21.52021 09 04 49.80 +33 18 47.9 EK064D83
CK01Q040 C2004 05 21.52325 09 04 50.56 +33 19 05.9 EK064D83
CK01Q040 C2004 05 21.52544 09 04 51.09 +33 19 19.1 EK064D83
CK01Q040 C2004 05 21.94424 09 06 33.23 +33 59 32.2 9.6 N EK064A01
CK01Q040 C2004 05 21.94495 09 06 33.42 +33 59 36.2 9.6 N EK064A01
CK01Q040 C2004 05 21.94550 09 06 33.56 +33 59 39.0 9.6 N EK064A01
CK01Q040 C2004 05 21.99578 09 06 45.90 +34 04 20.3 EK064621
CK01Q040 C2004 05 21.99689 09 06 46.15 +34 04 26.4 EK064621
CK01Q040 C2004 05 21.99799 09 06 46.44 +34 04 32.8 EK064621
CK01Q040 C2004 05 21.99910 09 06 46.72 +34 04 39.3 10 N EK064621
CK01Q040 C2004 05 22.84685 09 10 05.69 +35 21 17.2 9.5 N EK064939
CK01Q040 C2004 05 22.84766 09 10 05.87 +35 21 21.4 9.5 N EK064939
CK01Q040 C2004 05 22.84846 09 10 06.05 +35 21 25.5 9.5 N EK064939
CK01Q040 C2004 05 22.84927 09 10 06.22 +35 21 29.6 9.5 N EK064939
CK01Q040 C2004 05 22.85007 09 10 06.41 +35 21 33.7 9.6 N EK064939
CK01Q040 C2004 05 22.85683 09 10 07.79 +35 22 07.7 EK064201
CK01Q040 C2004 05 22.88126 09 10 13.35 +35 24 13.3 EK064201
CK01Q040 C2004 05 22.90328 09 10 18.35 +35 26 06.4 EK064201
CK01Q040 C2004 05 22.91439 09 10 21.29 +35 27 21.8 10.8 N EK064859
CK01Q040 C2004 05 22.91664 09 10 21.82 +35 27 33.0 10.7 N EK064859
CK01Q040 C2004 05 22.91872 09 10 22.27 +35 27 43.9 10.7 N EK064859
CK01Q040 C2004 05 22.93227 09 10 24.97 +35 28 35.4 EK064201
CK01Q040 C2004 05 22.95840 09 10 30.94 +35 30 49.5 EK064201
CK01Q040 C2004 05 23.09261 09 11 01.63 +35 42 23.9 4.4 T EK064H41
CK01Q040 C2004 05 23.09594 09 11 02.45 +35 42 41.4 4.4 T EK064H41
CK01Q040 C2004 05 23.09634 09 11 02.47 +35 42 42.8 4.5 T EK064H41
CK01Q040 2004 05 23.51753 09 12 36.35 +36 17 48.4 6.3 T EK064370
CK01Q040 C2004 05 23.52089 09 12 37.18 +36 18 00.9 5.9 T EK064367
CK01Q040 C2004 05 23.52228 09 12 37.50 +36 18 07.7 5.9 T EK064367
CK01Q040 C2004 05 23.52367 09 12 37.80 +36 18 14.6 5.9 T EK064367
CK01Q040 2004 05 23.53906 09 12 40.98 +36 19 30.5 6.5 T EK064370
CK01Q040 C2004 05 23.82802 09 13 44.77 +36 42 44.6 9.8 N EK064442
CK01Q040 C2004 05 23.82938 09 13 45.10 +36 42 51.8 9.8 N EK064442
CK01Q040 C2004 05 23.83092 09 13 45.25 +36 43 00.7 9.7 N EK064442
CK01Q040 C2004 05 23.83177 09 13 45.49 +36 43 02.7 9.5 N EK064213
CK01Q040 C2004 05 23.83285 09 13 45.78 +36 43 08.5 9.4 N EK064213
CK01Q040 C2004 05 23.83385 09 13 45.99 +36 43 13.0 9.5 N EK064213
CK01Q040 C2004 05 23.83619 09 13 46.55 +36 43 24.3 9.8 N EK064442
CK01Q040 C2004 05 23.86229 09 13 51.99 +36 45 29.6 8.4 N EK064J74
CK01Q040 C2004 05 23.86240 09 13 52.16 +36 45 28.0 10.2 N EK064J74
CK01Q040 C2004 05 23.86543 09 13 52.65 +36 45 44.1 8.5 N EK064J74
CK01Q040 C2004 05 23.86554 09 13 52.77 +36 45 43.1 10.2 N EK064J74
CK01Q040 C2004 05 23.87324 09 13 54.31 +36 46 15.2 9.8 N EK064442
CK01Q040 C2004 05 23.88587 09 13 57.10 +36 47 17.7 9.2 N EK064A32
CK01Q040 C2004 05 23.88726 09 13 57.40 +36 47 24.0 9.2 N EK064A32
CK01Q040 C2004 05 23.88863 09 13 57.72 +36 47 30.7 9.2 N EK064A32
CK01Q040 C2004 05 23.91306 09 14 03.01 +36 49 26.6 9.8 N EK064A03
CK01Q040 C2004 05 23.91535 09 14 03.48 +36 49 37.4 9.8 N EK064A03
CK01Q040 C2004 05 24.44589 09 15 56.74 +37 30 33.9 9.4 N EK064379
CK01Q040 C2004 05 24.45074 09 15 57.77 +37 30 56.6 9.5 N EK064379
CK01Q040 C2004 05 24.45707 09 15 59.18 +37 31 25.3 9.4 N EK064379
CK01Q040 C2004 05 24.50802 09 16 09.67 +37 35 13.1 EK064D70
CK01Q040 C2004 05 24.51034 09 16 10.11 +37 35 22.9 EK064D70
CK01Q040 C2004 05 24.51535 09 16 11.19 +37 35 45.8 6 T EK064D70
CK01Q040 C2004 05 24.84306 09 17 19.53 +37 59 57.0 10.0 N EK064J76
CK01Q040 C2004 05 24.84331 09 17 19.56 +37 59 58.1 9.7 N EK064J76
CK01Q040 C2004 05 24.84355 09 17 19.58 +37 59 59.2 9.8 N EK064J76
CK01Q040 C2004 05 24.86918 09 17 24.77 +38 01 49.5 9.5 N EK064J97
CK01Q040 C2004 05 24.87187 09 17 25.29 +38 02 01.2 9.4 N EK064J97
CK01Q040 C2004 05 24.87266 09 17 25.44 +38 02 04.5 9.5 N EK064J97
CK01Q040 C2004 05 24.87345 09 17 25.62 +38 02 08.0 9.5 N EK064J97
CK01Q040 C2004 05 24.87422 09 17 25.64 +38 02 12.4 9.6 N EK064J97
CK01Q040 C2004 05 24.87501 09 17 25.94 +38 02 14.6 9.6 N EK064J97
CK01Q040 C2004 05 25.46759 09 19 26.05 +38 44 11.8 EK064340
CK01Q040 C2004 05 25.46840 09 19 26.22 +38 44 15.3 EK064340
CK01Q040 C2004 05 25.46885 09 19 26.42 +38 44 18.8 10.0 N EK064379
CK01Q040 C2004 05 25.46921 09 19 26.37 +38 44 18.3 5.6 T EK064340
CK01Q040 C2004 05 25.48426 09 19 29.31 +38 45 20.8 9.9 N EK064379
CK01Q040 C2004 05 26.04030 09 21 18.73 +39 22 48.9 EK064H72
CK01Q040 C2004 05 26.04157 09 21 18.92 +39 22 54.1 EK064H72
CK01Q040 C2004 05 26.04286 09 21 19.13 +39 22 59.1 EK064H72
CK01Q040 C2004 05 26.04412 09 21 19.39 +39 23 04.6 EK064H72
CK01Q040 2004 05 27.55368 09 26 00.95 +40 56 24.8 6.5 T EK064370
CK01Q040 2004 05 27.57710 09 26 05.17 +40 57 45.6 6.5 T EK064370
CK01Q040 C2004 05 27.86426 09 26 56.77 +41 14 16.4 10.0 N EK064J74
CK01Q040 C2004 05 27.86649 09 26 57.16 +41 14 24.0 10.0 N EK064J74
CK01Q040 C2004 05 27.87592 09 26 59.39 +41 14 54.7 9.8 N EK064442
CK01Q040 C2004 05 27.87619 09 26 58.87 +41 14 55.9 9.8 N EK064442
CK01Q040 C2004 05 27.87634 09 26 59.37 +41 14 55.1 9.9 N EK064442
CK01Q040 C2004 05 27.87691 09 26 58.69 +41 14 56.5 9.8 N EK064442
CK01Q040 C2004 05 27.88968 09 27 01.22 +41 15 42.5 10.0 N EK064J74
Observer details:
160 Castelmartini. Observer E. Prosperi. 0.25-m f/7 Schmidt-Cassegrain
+ CCD.
201 Jonathan B. Postel Observatory. Observer V. Pozzoli. 0.40-m f/9
Cassegrain + CCD.
213 Observatorio Montcabre. Observer R. Naves. Measurer M. Campas. 0.30-m
f/6.6 Schmidt-Cassegrain + CCD.
340 Toyonaka. Observer Y. Ezaki. 0.30-m f/6 reflector + CCD.
367 Yatsuka. Observer H. Abe. 0.26-m f/6 reflector + CCD.
370 Kochi. Observer T. Seki. 0.18-m f/5 reflector.
379 Hamamatsu-Yuto. Observer S. Wakuda. 0.25-m f/5.0 Schmidt-Cassegrain
+ CCD.
442 Gualba Observatory. Observer A. Sanchez. 0.31-m f/3.3 Schmidt-Cassegrain
+ CCD.
621 Bergisch Gladbach. Observer W. Bickel. 0.60-m f/5.2 reflector + CCD.
834 Buenos Aires-AAAA. Observer R. Mackintosh. 0.25-m f/6.3
Schmidt-Cassegrain + CCD.
859 Wykrota Observatory-CEAMIG. Observer C. Jacques. 0.30-m f/3.0
Schmidt-Cassegrain + CCD.
939 Observatorio Rodeno. Observer J. Castellano. 0.20-m f/10
Schmidt-Cassegrain + CCD.
A01 Masia Cal Maciarol Modul 1. Observer F. Baldris. 0.20-m f/5.0 Newtonian
+ CCD.
A03 Torredembarra. Observer J. Moreno. 0.25-m f/3.3 Schmidt-Cassegrain + CCD.
A32 Panker. Observer H. Denzau. 0.36-m f/5.5 Schmidt-Cassegrain + CCD.
A46 Lelekovice. Observer K. Hornoch. 0.35-m f/4.7 reflector + CCD.
D70 Tosa. Observer S. Shimomoto. 0.20-m f/6.3 Schmidt-Cassegrain + CCD.
D83 Miwa. Observer Y. Ohshima. 0.25-m f/5 reflector + CCD.
H41 Petit Jean Mountain. Observer P. C. Sherrod. 0.41-m f/3.7
Schmidt-Cassegrain + CCD.
H72 Evelyn L. Egan Observatory, Fort Myers. Observer M. Fauerbach. 0.40-m
f/5.3 reflector + CCD.
J74 Bilbao. Observer M. Berrocal. 0.12-m f/8.3 refractor + CCD. Long. =
357.0961, rho cos phi' = 0.72950, rho sin phi' = +0.68169.
J76 La Murta. Observer S. Pastor, J. A. Reyes. 0.40-m f/3.3
Schmidt-Cassegrain + CCD.
J97 Alginet. Observer T. Climent G. 0.25-m f/4 Schmidt-Cassegrain + CCD.
Orbital elements:
C/2001 Q4 (NEAT)
Epoch 2004 June 4.0 TT = JDT 2453160.5
T 2004 May 15.96695 TT MPC
q 0.9619592 (2000.0) P Q
z -0.0007765 Peri. 1.20629 -0.86517155 -0.06625575
+/-0.0000006 Node 210.27848 -0.46795678 -0.24964572
e 1.0007470 Incl. 99.64258 -0.18026269 +0.96606790
From 935 observations 2001 Aug. 24-2004 May 27, mean residual 0".92.
The "original" and "future" barycentric values of 1/a are +0.000042
and -0.000703 (+/- 0.000001) AU^-1, respectively. A somewhat comparable
nongravitational solution, but satisfying 956 observations with mean
residual 0".78, gives A1 = +1.18 +/- 0.04, A2 = -0.13 +/- 0.04.
Brian G. Marsden (C) Copyright 2004 MPC M.P.E.C. 2004-K64
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