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  • MPEC 2000-B31 : 1998 WG24

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    M.P.E.C. 2000-B31                                Issued 2000 Jan. 28, 23:13 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
    
                 BMARSDEN@CFA.HARVARD.EDU or GWILLIAMS@CFA.HARVARD.EDU
              URL http://cfa-www.harvard.edu/iau/mpc.html  ISSN 1523-6714
    
                                       1998 WG24
    
                               Revision to MPEC 1998-X07
    
    Observations:
         J98W24G 9C1999 12 28.22900 05 03 16.68 +22 21 46.3          22.4 R      695
         J98W24G 9C1999 12 28.23622 05 03 16.69 +22 21 46.2          22.5 R      695
         J98W24G 9C1999 12 28.32757 05 03 16.15 +22 21 45.1                      695
         J98W24G 9C1999 12 29.29841 05 03 11.30 +22 21 39.9          22.6 R      695
         J98W24G 9C1999 12 29.30588 05 03 11.27 +22 21 39.8          22.8 R      695
         J98W24G 9C1999 12 29.36427 05 03 10.96 +22 21 39.7          22.3 R      695
         J98W24G 9C1999 12 29.37226 05 03 10.95 +22 21 39.6          22.3 R      695
         J98W24G  C2000 01 05.14468 05 02 38.14 +22 21 00.3          23.0 R      697
         J98W24G  C2000 01 05.22955 05 02 37.75 +22 20 59.6          23.0 R      697
         J98W24G  C2000 01 05.30292 05 02 37.39 +22 20 59.4          23.1 R      697
    
    Observer details:
    695 Kitt Peak.  Observers J. W. Parker, J. A. Stansberry.  Measurer
        J. W. Parker.  2.1-m reflector + CCD.
    697 Kitt Peak, McGraw-Hill.  Observers R. L. Allen, M. Allen.  Measurer
        R. L. Allen.  2.4-m Hiltner Telescope + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees) and reference
    991228 695 0.06+ 0.01+    000105 697 0.06+ 0.01+    MPC 35442
    
    Orbital elements:
    1998 WG24
    Epoch 2000 Feb. 26.0 TT = JDT 2451600.5                 Marsden
    M 333.48370              (2000.0)            P               Q
    n   0.00318508     Peri.   22.38306     -0.35357904     -0.93459920
    a  45.7497606      Node    88.34091     +0.85222870     -0.33896483
    e   0.1134880      Incl.    2.22513     +0.38560098     -0.10782941
    P 309              H    6.8           G   0.15           U   6
    Residuals in seconds of arc
    981118 695  0.0   0.0     990123 568  0.1-  0.1-    991229 695  0.2-  0.2+
    981118 695  0.0   0.1+    991228 695  0.0   0.0     991229 695  0.2+  0.2+
    981119 695  0.0   0.1-    991228 695  0.6+  0.1-    000105 697  0.1-  0.2+
    981119 695  0.0   0.0     991228 695  0.4-  0.6-    000105 697  0.1+  0.1-
    990122 568  0.1+  0.1+    991229 695  0.1-  0.0     000105 697  0.0   0.2+
    990122 568  0.1+  0.0     991229 695  0.0   0.0
    
    Ephemeris:
    1998 WG24                a,e,i = 45.75, 0.11, 2                  q = 40.558
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2000 01 27    05 01.19   +22 19.3   40.606   41.246   130.1     1.0    23.1
    2000 02 06    05 00.75   +22 18.9   40.746   41.245   119.8     1.2    23.1
    2000 02 16    05 00.47   +22 18.7   40.901   41.243   109.6     1.3    23.1
    2000 02 26    05 00.36   +22 18.7   41.066   41.242    99.5     1.4    23.1
    2000 03 07    05 00.43   +22 19.0   41.237   41.240    89.5     1.4    23.1
    2000 03 17    05 00.68   +22 19.6   41.407   41.239    79.6     1.4    23.1
    2000 03 27    05 01.10   +22 20.3   41.571   41.237    69.8     1.3    23.2
    2000 04 06    05 01.68   +22 21.3   41.726   41.235    60.0     1.2    23.2
    2000 04 16    05 02.40   +22 22.5   41.866   41.234    50.4     1.1    23.1
    2000 04 26    05 03.26   +22 23.9   41.988   41.232    40.8     0.9    23.1
    2000 05 06    05 04.22   +22 25.3   42.089   41.231    31.4     0.7    23.1
    
    Brian G. Marsden             (C) Copyright 2000 MPC           M.P.E.C. 2000-B31
    

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