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    • MPEC 1997-M12 : 1997 MS

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    Read MPEC 1997-M11 Read MPEC 1997-N01 

    M.P.E.C. 1997-M12                                Issued 1997 June 30, 12:46 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 MS

Observations:
     J97M00S* C1997 06 25.20820 15 42 55.01 -14 22 01.9                      704
     J97M00S  C1997 06 25.21450 15 42 53.78 -14 22 50.7                      704
     J97M00S  C1997 06 25.23626 15 42 49.72 -14 25 40.9          18.5        704
     J97M00S  C1997 06 25.24125 15 42 48.75 -14 26 19.5                      704
     J97M00S  C1997 06 25.24617 15 42 47.85 -14 26 58.0          18.9        704
     J97M00S  C1997 06 25.27953 15 42 41.67 -14 31 17.2          18.2        704
     J97M00S  C1997 06 25.28343 15 42 40.87 -14 31 46.8          18.6        704
     J97M00S  C1997 06 25.28639 15 42 40.32 -14 32 09.5          18.4        704
     J97M00S  C1997 06 25.28964 15 42 39.79 -14 32 34.4          18.4        704
     J97M00S  C1997 06 25.96542 15 40 44.88 -15 56 43.6          18.4 V      599
     J97M00S  C1997 06 25.96759 15 40 44.57 -15 56 56.8                      599
     J97M00S  C1997 06 25.97422 15 40 43.28 -15 57 48.5                      599
     J97M00S  C1997 06 25.99230 15 40 40.23 -15 59 55.1                      599
     J97M00S  C1997 06 26.17599 15 40 11.87 -16 21 41.5          18.9        704
     J97M00S  C1997 06 26.17812 15 40 11.49 -16 21 56.7          18.8        704
     J97M00S  C1997 06 26.18016 15 40 11.16 -16 22 11.0          18.5        704
     J97M00S  C1997 06 26.18229 15 40 10.83 -16 22 25.9          18.6        704
     J97M00S  C1997 06 26.18433 15 40 10.43 -16 22 40.7          18.6        704
     J97M00S  C1997 06 26.27262 15 39 55.61 -16 32 58.4          18.4        704
     J97M00S  C1997 06 26.27457 15 39 55.21 -16 33 11.4                      704
     J97M00S  C1997 06 26.27670 15 39 54.93 -16 33 25.9                      704
     J97M00S  C1997 06 26.27875 15 39 54.49 -16 33 41.6          18.8        704
     J97M00S  C1997 06 26.28088 15 39 54.18 -16 33 55.2                      704
     J97M00S  C1997 06 26.55785 15 39 11.45 -17 05 36.0          18.8 V      402
     J97M00S  C1997 06 26.55993 15 39 11.15 -17 05 51.5                      402
     J97M00S  C1997 06 26.56201 15 39 10.86 -17 06 03.5                      402
     J97M00S  C1997 06 29.60764 15 32 34.04 -22 01 25.8                      360
     J97M00S  C1997 06 29.61233 15 32 33.47 -22 01 49.5                      360
     J97M00S FC1997 06 29.61684 15 32 32.85 -22 02 12.6                      360

Observer details:
360 Kuma Kogen.  Observer A. Nakamura.  0.60-m f/6.0 Ritchey-Chretien + CCD.
402 Dynic Astronomical Observatory.  Observer A. Sugie.  0.60-m f/3.7 reflector
    + CCD.
599 Astronomical Observatory, Campo Imperatore.  Observers A. Boattini,
    G. De Sanctis, P. Tanga, A. Di Clemente, A. Di Paola.  Measurers
    A. Boattini, G. De Sanctis, P. Tanga.  0.6-m f/3 Schmidt + CCD.
704 Lincoln Laboratory ETS, New Mexico.  Observers M. Blythe, F. Shelly,
    M. Bezpalko.  Measurers J. Stuart, H. Viggh, J. Sharma, G. Stokes.  1.0-m
    f/2.15 reflector + CCD.

Orbital elements:
1997 MS
Epoch 1997 June 21.0 TT = JDT 2450620.5                 Williams
M  23.66554              (2000.0)            P               Q
n   0.36891261     Peri.   65.68458     -0.49734042     -0.29227247
a   1.9253974      Node    86.47058     +0.10998320     -0.95518756
e   0.7259942      Incl.   54.92428     +0.86055575     -0.04683523
P   2.67           H   18.5           G   0.15
From 29 observations 1997 June 25-29.

Ephemeris:
1997 MS                  a,e,i = 1.93, 0.73, 55                  q = 0.5276
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
1997 06 21    15 58.86   -02 45.7    0.236    1.216   144.4    29.1    17.1
1997 06 26    15 40.67   -16 00.4    0.312    1.277   142.0    29.3    17.8
1997 07 01    15 30.24   -23 49.6    0.400    1.336   136.6    31.5    18.5
1997 07 06    15 24.47   -28 46.1    0.496    1.394   131.3    33.2    19.1
1997 07 11    15 21.78   -32 07.0    0.595    1.451   126.4    34.3    19.6
1997 07 16    15 21.26   -34 31.4    0.697    1.507   122.0    34.9    20.0
1997 07 21    15 22.34   -36 20.3    0.802    1.561   117.9    35.1    20.4
1997 07 26    15 24.64   -37 45.6    0.908    1.614   114.0    35.1    20.8
1997 07 31    15 27.94   -38 54.7    1.015    1.666   110.3    34.9    21.1
1997 08 05    15 32.06   -39 52.2    1.122    1.716   106.8    34.5    21.4
1997 08 10    15 36.89   -40 41.3    1.231    1.766   103.3    34.0    21.6
1997 08 15    15 42.31   -41 24.0    1.339    1.814   100.0    33.4    21.8
1997 08 20    15 48.23   -42 01.8    1.448    1.861    96.7    32.7    22.0

Gareth V. Williams           (C) Copyright 1997 MPC           M.P.E.C. 1997-M12

    Read MPEC 1997-M11 Read MPEC 1997-N01

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    • B01 (the abbreviated form)