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    • MPEC 1997-C07 : 1997 AQ18

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    M.P.E.C. 1997-C07                                Issued 1997 Feb. 10, 23:05 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.

             BMARSDEN@CFA.HARVARD.EDU or GWILLIAMS@CFA.HARVARD.EDU
                 URL http://cfa-www.harvard.edu/cfa/ps/mpc.html

                                   1997 AQ18

                           Revision to MPEC 1997-B20

Observations:
     J97A18Q  C1997 01 30.45972 07 15 58.92 +16 47 20.2                      360
     J97A18Q  C1997 01 30.46493 07 15 58.13 +16 47 16.6                      360
     J97A18Q  C1997 01 30.46927 07 15 57.50 +16 47 13.3                      360
     J97A18Q FC1997 02 09.77061 06 57 12.92 +15 00 29.0                      046
     J97A18Q FC1997 02 09.77916 06 57 12.15 +15 00 24.9          19.0 V      046

Observer details:
046 Klet.  Observers J. Ticha, M. Tichy, Z. Moravec.  Measurer M. Tichy.
    0.57-m f/5.2 reflector + CCD.
360 Kuma Kogen.  Observer A. Nakamura.  0.60-m f/6.0 Ritchey-Chretien + CCD.

Orbital elements:
1997 AQ18
Epoch 1997 Jan. 12.0 TT = JDT 2450460.5                 Marsden
M  97.12734              (2000.0)            P               Q
n   0.80233749     Peri.   36.88485     +0.86858967     +0.41710365
a   1.1470033      Node   296.38409     -0.49515586     +0.70952910
e   0.4651229      Incl.   17.37632     -0.01930450     +0.56797271
P   1.23           H   18.0           G   0.15
From 59 observations 1997 Jan. 15-Feb. 9.

Ephemeris:
1997 AQ18                a,e,i = 1.15, 0.47, 17                  q = 0.6135
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
1997 02 01    07 12.45   +16 29.3    0.559    1.509   154.6    16.3    18.5
1997 02 06    07 02.79   +15 35.7    0.604    1.529   147.3    20.4    18.8
1997 02 11    06 55.69   +14 50.1    0.653    1.548   140.6    23.9    19.1
1997 02 16    06 50.86   +14 11.9    0.706    1.566   134.4    26.8    19.4
1997 02 21    06 48.01   +13 40.0    0.762    1.582   128.8    29.2    19.7
1997 02 26    06 46.83   +13 13.4    0.820    1.597   123.5    31.1    19.9
1997 03 03    06 47.08   +12 51.0    0.880    1.611   118.7    32.7    20.1
1997 03 08    06 48.56   +12 31.7    0.942    1.623   114.1    33.9    20.3
1997 03 13    06 51.09   +12 14.7    1.004    1.635   109.8    34.9    20.5
1997 03 18    06 54.53   +11 59.1    1.066    1.645   105.8    35.6    20.7
1997 03 23    06 58.74   +11 44.4    1.129    1.653   102.0    36.1    20.8
1997 03 28    07 03.61   +11 29.9    1.191    1.661    98.3    36.5    21.0
1997 04 02    07 09.06   +11 15.3    1.253    1.667    94.8    36.7    21.1
1997 04 07    07 15.00   +11 00.0    1.314    1.672    91.5    36.8    21.2
1997 04 12    07 21.40   +10 43.9    1.374    1.676    88.3    36.7    21.3

Brian G. Marsden             (C) Copyright 1997 MPC           M.P.E.C. 1997-C07

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    MPEC number:

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    • 1997-B01 (the full form)
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    • B01 (the abbreviated form)