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MPEC 1997-U11 : 1997 TC25

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M.P.E.C. 1997-U11                                Issued 1997 Oct. 26, 14:45 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/iau/mpc.html

                                   1997 TC25

Observations:
     J97T25C* C1997 10 10.40137 02 19 41.13 +13 58 15.2          20.3 V      691
     J97T25C  C1997 10 10.43006 02 19 46.13 +13 58 51.7          20.0 V      691
     J97T25C  C1997 10 10.45408 02 19 50.30 +13 59 21.2          20.2 V      691
     J97T25C  C1997 10 11.29993 02 22 44.07 +14 16 41.0          20.1 V      691
     J97T25C  C1997 10 11.35503 02 22 51.93 +14 17 44.9          20.5 V      691
     J97T25C  C1997 10 11.37672 02 22 55.00 +14 18 09.0          20.5 V      691
     J97T25C  C1997 10 11.39871 02 22 58.13 +14 18 32.4          20.2 V      691
     J97T25C  C1997 10 12.33175 02 25 37.55 +14 34 35.5          20.8 V      691
     J97T25C  C1997 10 12.33964 02 25 38.42 +14 34 42.9          20.5 V      691
     J97T25C  C1997 10 12.34770 02 25 39.32 +14 34 50.4          20.6 V      691
     J97T25C  C1997 10 23.26213 02 39 30.88 +15 59 21.3          21.0 V      691
     J97T25C  C1997 10 23.26966 02 39 30.91 +15 59 23.6          20.9 V      691
     J97T25C  C1997 10 23.28283 02 39 31.05 +15 59 25.4          21.3 V      691

Observer details:
691 Steward Observatory, Kitt Peak.  Observers J. V. Scotti, J. Montani.
    0.9-m Spacewatch telescope.

Orbital elements:
1997 TC25
Epoch 1997 Sept. 29.0 TT = JDT 2450720.5                Williams
M   5.01389              (2000.0)            P               Q
n   0.24453533     Peri.  321.59747     +0.93660870     +0.35037461
a   2.5326488      Node    17.89244     -0.32038372     +0.85796509
e   0.6145942      Incl.    0.24847     -0.14183940     +0.37567744
P   4.03           H   24.5           G   0.15
From 13 observations 1997 Oct. 10-23.

Ephemeris:
1997 TC25                a,e,i = 2.53, 0.61, 0                   q = 0.9761
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
1997 09 24    17 22.12   -25 47.7    0.030    0.999    80.5    97.8    20.4
1997 09 25    17 52.26   -26 22.0    0.025    1.002    86.3    92.3    19.8
1997 09 26    18 35.73   -26 29.6    0.021    1.005    95.0    83.8    19.1
1997 09 27    19 37.84   -25 14.4    0.018    1.008   108.0    71.0    18.2
1997 09 28    20 58.14   -21 06.6    0.016    1.011   125.9    53.3    17.5
1997 09 29    22 21.63   -13 55.0    0.016    1.015   146.1    33.4    16.9
1997 09 30    23 29.85   -06 15.3    0.018    1.019   163.5    16.2    16.7
1997 10 01    00 18.40   -00 15.9    0.022    1.023   175.7     4.2    16.6
1997 10 02    00 51.86   +03 54.0    0.026    1.027   175.2     4.7    17.0
1997 10 03    01 15.36   +06 45.6    0.031    1.031   169.9     9.8    17.7
1997 10 04    01 32.39   +08 46.4    0.036    1.035   166.2    13.3    18.1
1997 10 05    01 45.15   +10 14.2    0.041    1.040   163.7    15.6    18.5
1997 10 06    01 54.97   +11 20.1    0.047    1.045   162.1    17.1    18.9
1997 10 07    02 02.71   +12 10.9    0.053    1.049   161.0    18.1    19.1
1997 10 08    02 08.94   +12 51.0    0.058    1.054   160.3    18.6    19.4
1997 10 09    02 14.02   +13 23.3    0.064    1.059   160.0    18.8    19.6

1997 10 14    02 29.42   +14 58.3    0.094    1.086   160.9    17.5    20.5
1997 10 19    02 36.47   +15 41.0    0.125    1.116   164.0    14.2    21.0
1997 10 24    02 39.84   +16 01.9    0.157    1.149   168.1    10.3    21.4
1997 10 29    02 41.37   +16 12.0    0.191    1.183   172.7     6.1    21.8
1997 11 03    02 42.04   +16 16.7    0.228    1.220   177.5     2.1    22.0
1997 11 08    02 42.41   +16 19.1    0.267    1.257   177.5     2.0    22.4

Gareth V. Williams           (C) Copyright 1997 MPC           M.P.E.C. 1997-U11

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