MPEC 2001-X71 : COMET C/2001 Q4 (NEAT)
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Read MPEC 2001-X70
Read MPEC 2001-X72
M.P.E.C. 2001-X71 Issued 2001 Dec. 15, 16:27 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://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
COMET C/2001 Q4 (NEAT)
Observations:
CK01Q040 bC2001 12 08.43501 02 05 42.95 -30 36 59.2 17.3 N 422
CK01Q040 bC2001 12 08.43571 02 05 42.85 -30 36 59.6 17.6 N 422
CK01Q040 C2001 12 13.54635 02 03 57.27 -30 32 01.1 17.8 T 428
Observer details:
422 Loomberah. Observer G. J. Garradd. 0.45-m f/5.4 reflector + CCD.
428 Reedy Creek. Observer J. Broughton. 0.25-m f/6.3 Schmidt-Cassegrain
+ CCD.
Orbital elements:
C/2001 Q4 (NEAT)
Epoch 2004 June 4.0 TT = JDT 2453160.5
T 2004 May 15.83135 TT MPC
q 0.9615791 (2000.0) P Q
z -0.0008144 Peri. 1.20920 -0.86522364 -0.06613552
+/-0.0001180 Node 210.27276 -0.46789243 -0.24971949
e 1.0007831 Incl. 99.63558 -0.18017970 +0.96605707
Residuals in seconds of arc
010824 644 0.1- 0.3+ 010910 644 0.7+ 0.8- 011012 360 0.2+ 0.1+
010824 644 0.6- 0.3+ 010910 422 0.2+ 0.2+ 011012 360 0.1+ 0.5-
010824 644 0.9- 0.3+ 010910 422 0.3+ 0.0 011014 402 1.0- 1.2+
010824 422 1.8+ 0.4+ 010910 422 0.7+ 0.6+ 011014 402 0.6+ 0.4+
010824 422 0.5+ 0.2+ 010913 422 0.2+ 0.2+ 011014 402 0.2+ 1.2+
010824 422 0.6+ 0.1- 010913 422 0.3- 0.5- 011014 867 0.2- 0.0
010824 422 0.1+ 0.1+ 010913 422 1.2+ 0.0 011014 867 0.3- 0.3+
010826 644 0.1- 0.1+ 010915 422 0.0 0.1+ 011023 402 1.4+ 0.3+
010826 644 0.2+ 0.2- 010915 422 0.4+ 0.3+ 011023 402 (2.3+ 0.3-)
010826 644 0.0 0.4+ 010915 422 0.8+ 0.2+ 011023 402 0.5+ 0.5+
010826 644 0.2- 0.1- 010915 422 0.4+ 0.5+ 011024 360 0.8+ 0.1-
010826 644 0.0 0.3- 010916 372 1.0+ 0.1- 011024 360 0.8- 0.3+
010826 644 0.3- 0.4+ 010917 402 0.5- 1.1- 011110 342 0.6+ 0.3+
010827 046 0.9- 0.1+ 010917 402 0.1+ 0.1- 011110 342 0.9+ 0.7-
010827 046 0.5- 0.4- 010917 402 0.2+ 0.2+ 011113 428 1.3- 0.6-
010827 046 0.4- 0.5- 010918 422 0.0 0.1- 011113 428 0.5- 0.3-
010827 644 0.4+ 0.8+ 010918 422 0.2+ 0.5+ 011113 428 0.4- 0.0
010827 644 0.1- 1.1+ 010918 360 0.3- 0.6- 011114 402 (1.0- 2.0+)
010827 644 0.6+ 0.6+ 010918 360 0.1+ 0.3- 011114 402 (1.5+ 2.7+)
010827 711 0.1- 0.3+ 010918 360 0.1- 0.1- 011114 402 1.3- 1.6+
010827 711 0.2+ 0.3+ 010919 046 0.3+ 0.1+ 011115 474 0.5+ 1.2+
010827 711 0.4- 0.0 010919 046 0.2- 0.2- 011115 474 0.4- 0.8+
010831 402 0.4- 0.3- 010919 046 1.1- 0.3+ 011115 474 0.0 0.7+
010831 402 0.3+ 0.4+ 010919 046 0.4+ 0.2+ 011116 349 1.0+ 1.7+
010831 402 0.3- 0.6- 010919 046 0.6+ 0.4+ 011116 349 (1.0+ 2.5+)
010906 644 1.3- 0.4- 010921 620 1.0- 0.3- 011118 340 (0.2- 5.4+)
010906 644 1.9- 0.9+ 010921 620 1.2- 1.5- 011118 340 0.1- 1.3-
010906 644 (3.3- 0.2-) 010921 620 0.5- 0.4- 011118 340 1.4- 6.4-
010907 644 (2.7- 0.9+) 010921 620 0.5+ 0.1- 011118 340 (1.2- 12.2-)
010907 644 (2.5- 0.5+) 010922 867 0.1- 0.8- 011120 360 0.3- 0.2-
010907 644 (2.1- 1.8+) 010922 867 0.2+ 0.5- 011120 360 0.5+ 0.4-
010909 644 (0.4- 3.1+) 010922 867 0.8+ 0.2- 011120 402 0.6- 0.9+
010909 644 (0.7- 3.0+) 010923 402 0.1+ 0.9+ 011120 402 0.2- 1.4+
010909 422 0.7- 1.1- 010923 402 0.3+ 0.5+ 011120 402 0.5+ 0.7+
010910 644 0.2+ 1.1- 010923 402 1.3- 0.6+ 011122 867 0.1+ 0.1-
010910 644 0.4- 1.1- 010924 428 0.0 0.1- 011122 867 0.3+ 0.1-
010910 644 0.2+ 1.2- 010925 428 0.9+ 0.3+ 011208 422 1.1+ 0.6+
010910 644 0.6+ 0.9- 010925 428 0.1+ 0.2+ 011208 422 0.0 0.2+
010910 644 0.3+ 0.1- 010925 428 0.5- 0.4+ 011213 428 0.3- 0.7-
Ephemeris:
C/2001 Q4 (NEAT)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2001 12 07 02 06.24 -30 38.0 8.897 9.329 113.2 5.6 17.9
2001 12 17 02 02.87 -30 27.5 8.944 9.253 105.4 5.9 17.9
2001 12 27 02 00.22 -30 09.6 8.999 9.177 97.3 6.1 17.9
2002 01 06 01 58.37 -29 45.7 9.060 9.101 89.3 6.2 17.9
2002 01 16 01 57.35 -29 17.1 9.121 9.024 81.3 6.2 17.9
2002 01 26 01 57.16 -28 45.1 9.177 8.948 73.5 6.1 17.8
2002 02 05 01 57.77 -28 11.0 9.225 8.870 66.0 5.8 17.8
2002 02 15 01 59.15 -27 36.1 9.262 8.793 58.9 5.5 17.8
2002 02 25 02 01.22 -27 01.6 9.284 8.715 52.4 5.2 17.7
2002 03 07 02 03.90 -26 28.5 9.289 8.637 46.6 4.8 17.7
2002 03 17 02 07.14 -25 57.8 9.275 8.559 41.8 4.4 17.7
2002 03 27 02 10.83 -25 30.2 9.241 8.480 38.3 4.2 17.6
2002 04 06 02 14.91 -25 06.7 9.185 8.401 36.4 4.1 17.6
2002 04 16 02 19.28 -24 47.9 9.109 8.322 36.4 4.1 17.5
2002 04 26 02 23.87 -24 34.6 9.012 8.243 38.0 4.3 17.4
2002 05 06 02 28.60 -24 27.2 8.894 8.163 41.2 4.7 17.4
2002 05 16 02 33.39 -24 26.6 8.757 8.082 45.6 5.1 17.3
2002 05 26 02 38.14 -24 33.1 8.603 8.002 50.8 5.6 17.2
2002 06 05 02 42.77 -24 47.3 8.433 7.921 56.6 6.1 17.1
2002 06 15 02 47.19 -25 09.6 8.250 7.839 62.9 6.6 17.0
2002 06 25 02 51.31 -25 40.5 8.056 7.758 69.4 7.0 16.9
2002 07 05 02 55.02 -26 20.1 7.855 7.676 76.2 7.4 16.8
2002 07 15 02 58.21 -27 08.6 7.649 7.593 83.0 7.6 16.7
2002 07 25 03 00.76 -28 05.8 7.442 7.510 90.0 7.8 16.6
2002 08 04 03 02.55 -29 11.2 7.237 7.427 96.9 7.8 16.5
2002 08 14 03 03.46 -30 24.3 7.038 7.343 103.7 7.7 16.4
2002 08 24 03 03.36 -31 43.6 6.849 7.259 110.2 7.5 16.3
2002 09 03 03 02.15 -33 07.5 6.673 7.175 116.1 7.3 16.2
2002 09 13 02 59.73 -34 33.7 6.514 7.090 121.4 7.0 16.1
2002 09 23 02 56.07 -35 59.3 6.374 7.005 125.5 6.7 16.0
2002 10 03 02 51.18 -37 21.1 6.256 6.919 128.1 6.5 15.9
2002 10 13 02 45.16 -38 35.6 6.161 6.833 129.0 6.5 15.8
2002 10 23 02 38.20 -39 39.6 6.090 6.746 127.8 6.7 15.7
2002 11 02 02 30.61 -40 30.3 6.042 6.659 124.9 7.0 15.6
2002 11 12 02 22.73 -41 05.6 6.015 6.572 120.4 7.5 15.6
2002 11 22 02 14.99 -41 24.7 6.007 6.483 114.8 7.9 15.5
2002 12 02 02 07.78 -41 27.8 6.015 6.395 108.4 8.4 15.5
2002 12 12 02 01.45 -41 15.9 6.034 6.306 101.6 8.8 15.4
2002 12 22 01 56.27 -40 51.1 6.062 6.216 94.5 9.1 15.3
2003 01 01 01 52.42 -40 15.7 6.093 6.126 87.3 9.2 15.3
2003 01 11 01 49.97 -39 32.1 6.123 6.036 80.3 9.2 15.2
2003 01 21 01 48.95 -38 43.1 6.148 5.944 73.5 9.1 15.2
2003 01 31 01 49.28 -37 50.8 6.166 5.853 67.1 8.9 15.1
2003 02 10 01 50.91 -36 57.3 6.172 5.760 61.1 8.6 15.1
2003 02 20 01 53.70 -36 04.4 6.165 5.667 55.7 8.3 15.0
2003 03 02 01 57.56 -35 13.8 6.142 5.574 51.1 8.0 14.9
2003 03 12 02 02.37 -34 26.9 6.102 5.480 47.5 7.7 14.8
2003 03 22 02 08.01 -33 45.0 6.044 5.385 44.9 7.5 14.7
2003 04 01 02 14.40 -33 09.1 5.968 5.289 43.6 7.5 14.6
2003 04 11 02 21.45 -32 40.5 5.873 5.193 43.6 7.6 14.5
2003 04 21 02 29.06 -32 20.2 5.760 5.096 44.8 8.0 14.4
2003 05 01 02 37.17 -32 09.4 5.631 4.999 47.1 8.5 14.2
2003 05 11 02 45.70 -32 09.2 5.485 4.901 50.2 9.1 14.1
2003 05 21 02 54.59 -32 20.8 5.326 4.802 54.0 9.8 13.9
2003 05 31 03 03.78 -32 45.4 5.155 4.702 58.3 10.6 13.8
2003 06 10 03 13.21 -33 24.5 4.973 4.601 62.9 11.3 13.6
2003 06 20 03 22.81 -34 19.4 4.784 4.500 67.8 12.1 13.4
2003 06 30 03 32.52 -35 31.5 4.591 4.398 72.7 12.8 13.2
2003 07 10 03 42.24 -37 02.5 4.395 4.294 77.7 13.4 13.0
2003 07 20 03 51.89 -38 53.4 4.201 4.191 82.5 13.9 12.8
2003 07 30 04 01.34 -41 05.4 4.010 4.086 87.0 14.4 12.6
2003 08 09 04 10.44 -43 39.4 3.828 3.980 91.2 14.8 12.4
2003 08 19 04 18.99 -46 35.2 3.656 3.873 94.8 15.1 12.2
2003 08 29 04 26.71 -49 52.2 3.497 3.765 97.6 15.4 12.0
2003 09 08 04 33.20 -53 28.0 3.354 3.656 99.4 15.8 11.8
2003 09 18 04 37.92 -57 19.3 3.229 3.547 100.2 16.2 11.5
2003 09 28 04 40.00 -61 20.9 3.122 3.436 99.7 16.7 11.3
2003 10 08 04 38.11 -65 25.8 3.033 3.324 98.0 17.3 11.1
2003 10 18 04 30.17 -69 25.1 2.961 3.210 95.3 18.0 10.9
2003 10 28 04 12.8 -73 07.4 2.904 3.096 91.6 18.7 10.7
2003 11 07 03 41.0 -76 16.6 2.858 2.981 87.3 19.4 10.5
2003 11 17 02 50.4 -78 31.6 2.820 2.864 82.5 20.0 10.3
2003 11 27 01 44.4 -79 29.8 2.784 2.746 77.6 20.5 10.1
2003 12 07 00 40.1 -79 06.9 2.746 2.627 72.7 21.0 9.9
2003 12 17 23 53.1 -77 46.0 2.702 2.507 68.1 21.4 9.6
2003 12 27 23 24.7 -75 56.3 2.647 2.386 64.0 21.7 9.4
2004 01 06 23 10.0 -73 58.4 2.579 2.263 60.5 22.2 9.1
2004 01 16 23 04.5 -72 03.6 2.494 2.140 57.9 22.9 8.8
2004 01 26 23 05.2 -70 17.9 2.389 2.017 56.3 24.0 8.4
2004 02 05 23 10.27 -68 45.2 2.262 1.893 55.8 25.5 8.0
2004 02 15 23 18.81 -67 27.8 2.113 1.769 56.3 27.7 7.6
2004 02 25 23 30.55 -66 28.0 1.940 1.646 58.0 30.7 7.1
2004 03 06 23 45.81 -65 48.4 1.744 1.524 60.5 34.5 6.5
2004 03 16 00 05.86 -65 31.0 1.524 1.407 63.9 39.4 5.9
2004 03 26 00 33.81 -65 37.0 1.282 1.294 67.9 45.6 5.2
2004 04 05 01 16.93 -65 59.0 1.021 1.191 72.2 53.1 4.3
2004 04 07 01 28.62 -66 02.4 0.967 1.171 73.0 54.8 4.1
2004 04 09 01 41.77 -66 03.7 0.913 1.153 73.9 56.6 3.9
2004 04 11 01 56.62 -66 01.7 0.859 1.135 74.7 58.4 3.7
2004 04 13 02 13.42 -65 54.4 0.804 1.117 75.5 60.3 3.5
2004 04 15 02 32.44 -65 39.1 0.750 1.100 76.2 62.3 3.3
2004 04 17 02 53.91 -65 11.9 0.695 1.084 76.9 64.4 3.1
2004 04 19 03 17.96 -64 27.3 0.642 1.069 77.5 66.6 2.8
2004 04 21 03 44.54 -63 17.9 0.589 1.054 78.0 68.8 2.6
2004 04 23 04 13.33 -61 34.0 0.538 1.041 78.4 71.2 2.3
2004 04 25 04 43.68 -59 02.9 0.489 1.028 78.6 73.6 2.1
2004 04 27 05 14.69 -55 29.8 0.443 1.016 78.6 76.1 1.8
2004 04 29 05 45.30 -50 38.4 0.402 1.006 78.3 78.7 1.5
2004 05 01 06 14.53 -44 14.2 0.367 0.996 77.7 81.2 1.3
2004 05 03 06 41.64 -36 11.0 0.340 0.987 76.8 83.6 1.1
2004 05 05 07 06.20 -26 40.3 0.324 0.980 75.7 85.6 1.0
2004 05 07 07 28.10 -16 17.4 0.320 0.974 74.6 87.0 0.9
2004 05 09 07 47.43 -05 55.0 0.328 0.969 73.5 87.5 0.9
2004 05 11 08 04.38 +03 38.2 0.348 0.965 72.7 87.2 1.1
2004 05 13 08 19.23 +11 54.3 0.378 0.963 71.9 86.1 1.2
2004 05 15 08 32.26 +18 47.4 0.416 0.962 71.3 84.6 1.4
2004 05 17 08 43.70 +24 25.5 0.459 0.962 70.6 82.7 1.6
2004 05 19 08 53.80 +29 00.9 0.506 0.963 69.9 80.6 1.9
2004 05 21 09 02.76 +32 46.3 0.555 0.966 69.2 78.3 2.1
2004 05 23 09 10.74 +35 52.3 0.607 0.970 68.4 76.1 2.3
2004 05 25 09 17.89 +38 27.4 0.660 0.975 67.5 73.8 2.5
2004 05 27 09 24.34 +40 38.2 0.713 0.981 66.7 71.5 2.7
2004 05 29 09 30.19 +42 29.7 0.767 0.989 65.8 69.2 2.9
2004 05 31 09 35.53 +44 05.7 0.820 0.998 64.9 67.0 3.1
2004 06 02 09 40.43 +45 29.1 0.874 1.007 64.0 64.8 3.2
2004 06 04 09 44.96 +46 42.3 0.927 1.018 63.1 62.7 3.4
2004 06 06 09 49.19 +47 46.9 0.980 1.030 62.2 60.6 3.6
2004 06 08 09 53.14 +48 44.5 1.032 1.043 61.3 58.6 3.8
2004 06 10 09 56.88 +49 36.1 1.083 1.057 60.4 56.6 3.9
2004 06 12 10 00.44 +50 22.6 1.133 1.071 59.5 54.8 4.1
2004 06 14 10 03.84 +51 04.8 1.183 1.087 58.6 53.0 4.2
2004 06 16 10 07.12 +51 43.3 1.232 1.103 57.8 51.2 4.4
2004 06 18 10 10.30 +52 18.6 1.279 1.120 57.0 49.6 4.5
2004 06 20 10 13.40 +52 51.1 1.326 1.137 56.2 48.0 4.7
2004 06 22 10 16.44 +53 21.3 1.372 1.156 55.5 46.5 4.8
2004 06 24 10 19.44 +53 49.3 1.416 1.175 54.8 45.0 5.0
The "original" and "future" barycentric values of 1/a are +0.000004
and -0.000741 (+/- 0.000118) AU**-1, respectively.
Brian G. Marsden (C) Copyright 2001 MPC M.P.E.C. 2001-X71
Read MPEC 2001-X70
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