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IAU Minor Planet Center

Minor Planet Center

MPEC 1998-M23: 1998 MY5

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M.P.E.C. 1998-M23                                Issued 1998 June 26, 17:24 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

                                   1998 MY5

Observations:
     J98M05Y* C1998 06 24.31893 13 45 40.83 -27 50 40.5          17.2 V      566
     J98M05Y  C1998 06 24.33960 13 45 35.76 -27 50 11.0          17.1 V      566
     J98M05Y  C1998 06 24.36065 13 45 30.57 -27 49 41.1          17.2 V      566
     J98M05Y  C1998 06 25.31766 13 41 46.93 -27 27 23.9          18.1 V      566
     J98M05Y  C1998 06 25.32826 13 41 44.28 -27 27 08.7          18.0 V      566
     J98M05Y  C1998 06 25.33868 13 41 41.78 -27 26 53.4          17.8 V      566
     J98M05Y  C1998 06 25.38786 13 41 31.77 -27 25 23.3          16.0 R      426
     J98M05Y  C1998 06 25.39278 13 41 30.58 -27 25 16.4          16.1 R      426
     J98M05Y  C1998 06 25.40524 13 41 27.54 -27 24 58.9          16.0 R      426
     J98M05Y  C1998 06 25.40987 13 41 26.42 -27 24 52.3          16.0 R      426
     J98M05Y  C1998 06 25.41601 13 41 24.91 -27 24 43.6          16.1 R      426
     J98M05Y  C1998 06 26.12904 13 38 38.49 -27 08 03.2                      711
     J98M05Y  C1998 06 26.13505 13 38 37.22 -27 07 55.5                      711
     J98M05Y  C1998 06 26.14110 13 38 35.24 -27 07 45.0                      711
     J98M05Y  C1998 06 26.38192 13 37 40.62 -27 01 30.4          16.3 R      426
     J98M05Y  C1998 06 26.38623 13 37 39.61 -27 01 24.5          16.3 R      426
     J98M05Y  C1998 06 26.39102 13 37 38.42 -27 01 17.2          16.4 R      426
     J98M05Y  C1998 06 26.39655 13 37 37.08 -27 01 09.1          16.4 R      426

Observer details:
426 Woomera.  Observer F. B. Zoltowski.  0.30-m f/3.3 Schmidt-Cassegrain + CCD.
566 Haleakala-NEAT/GEODSS.  Observers E. F. Helin, S. Pravdo, K. J. Lawrence,
    D. L. Rabinowitz for the NEAT team.  1.0-m f/2.2 GEODSS telescope + CCD.
711 McDonald Observatory.  Observer P. J. Shelus.  0.76-m reflector + CCD.

Orbital elements:
1998 MY5
Epoch 1998 June 16.0 TT = JDT 2450980.5                 Williams
M 330.47606              (2000.0)            P               Q
n   0.38424673     Peri.   26.89312     +0.99661589     +0.07132499
a   1.8738260      Node   328.93378     -0.08212797     +0.88475879
e   0.6265915      Incl.    4.54150     +0.00343023     +0.46055904
P   2.57           H   17.0           G   0.15
From 18 observations 1998 June 24-26.

Ephemeris:
1998 MY5                 a,e,i = 1.87, 0.63, 5                   q = 0.6997
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
1998 06 26    13 39.15   -27 10.8    0.326    1.203   117.6    48.5    16.8
1998 06 27    13 35.29   -26 46.4    0.323    1.193   115.7    50.2    16.8
1998 06 28    13 31.45   -26 21.4    0.320    1.183   113.9    51.8    16.8
1998 06 29    13 27.64   -25 55.7    0.316    1.173   112.0    53.5    16.8
1998 06 30    13 23.86   -25 29.4    0.313    1.162   110.2    55.2    16.8
1998 07 01    13 20.09   -25 02.6    0.310    1.152   108.3    56.9    16.8
1998 07 02    13 16.35   -24 35.1    0.307    1.142   106.4    58.6    16.8
1998 07 03    13 12.62   -24 07.0    0.304    1.132   104.6    60.4    16.8
1998 07 04    13 08.91   -23 38.4    0.301    1.122   102.7    62.1    16.9
1998 07 05    13 05.21   -23 09.1    0.298    1.112   100.8    63.9    16.9
1998 07 06    13 01.52   -22 39.2    0.295    1.102    98.9    65.7    16.9
1998 07 07    12 57.83   -22 08.6    0.293    1.092    97.0    67.6    16.9
1998 07 08    12 54.13   -21 37.4    0.290    1.082    95.1    69.4    16.9
1998 07 09    12 50.43   -21 05.4    0.287    1.072    93.2    71.3    16.9
1998 07 10    12 46.72   -20 32.8    0.284    1.062    91.2    73.2    17.0
1998 07 11    12 42.99   -19 59.3    0.281    1.052    89.3    75.2    17.0
1998 07 12    12 39.23   -19 25.1    0.279    1.042    87.3    77.2    17.0
1998 07 13    12 35.44   -18 49.9    0.276    1.032    85.3    79.2    17.0
1998 07 14    12 31.61   -18 13.9    0.273    1.022    83.3    81.2    17.1
1998 07 15    12 27.74   -17 36.8    0.271    1.012    81.3    83.3    17.1
1998 07 16    12 23.82   -16 58.7    0.268    1.002    79.3    85.5    17.1
1998 07 17    12 19.83   -16 19.5    0.266    0.992    77.2    87.7    17.2
1998 07 18    12 15.78   -15 39.1    0.263    0.982    75.1    89.9    17.2
1998 07 19    12 11.66   -14 57.5    0.261    0.972    73.0    92.2    17.3
1998 07 20    12 07.46   -14 14.5    0.258    0.963    70.8    94.5    17.3
1998 07 21    12 03.16   -13 30.2    0.256    0.953    68.6    96.9    17.4
1998 07 22    11 58.77   -12 44.4    0.253    0.943    66.4    99.4    17.5
1998 07 23    11 54.27   -11 57.0    0.251    0.934    64.1   101.9    17.6
1998 07 24    11 49.66   -11 08.0    0.249    0.925    61.8   104.5    17.7
1998 07 25    11 44.94   -10 17.3    0.247    0.915    59.4   107.2    17.8
1998 07 26    11 40.08   -09 24.9    0.245    0.906    57.0   109.9    17.9

Gareth V. Williams           (C) Copyright 1998 MPC           M.P.E.C. 1998-M23

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