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  • MPEC 1999-V03 : 1998 WH24

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    M.P.E.C. 1999-V03                                Issued 1999 Nov. 1, 22:30 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  ISSN 1523-6714
    
                                       1998 WH24
    
                               Revision to MPEC 1998-X08
    
    Observations:
         J98W24H 8C1999 10 07.56587 03 44 17.61 +21 30 32.0                      568
         J98W24H 8C1999 10 07.58927 03 44 17.53 +21 30 31.8                      568
         J98W24H 5C1999 10 08.60839 03 44 14.00 +21 30 24.7          21.0 R      568
         J98W24H 5C1999 10 08.63699 03 44 13.89 +21 30 24.6          20.8 R      568
    
    Observer details:
    568 Mauna Kea.  Observers W. Romanishin, S. Tegler, S. Sheppard.  10-m
        Keck II reflector + CCD, 2.2-m University of Hawaii reflector + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc and reference
    991007 568 18.0+  6.4+    991008 568 18.1+  5.9+    MPC 35442
    
    Orbital elements:
    1998 WH24
    Epoch 1999 Aug. 10.0 TT = JDT 2451400.5                 Marsden
    M 324.10460              (2000.0)            P               Q
    n   0.00315595     Peri.   51.27734     -0.18170913     -0.97038247
    a  46.0308699      Node    49.95361     +0.82531279     -0.23850669
    e   0.1021785      Incl.   12.00176     +0.53464062     +0.03837207
    P 312              H    4.6           G   0.15           U   7
    Residuals in seconds of arc
    981119 695  0.3-  0.1-    981125 688  0.1-  0.1+    981210 684  0.8-  1.3-
    981119 695  0.0   0.3-    981125 688  0.1+  0.1+    981211 950  0.7+  0.6-
    981124 688  0.6-  0.1+    981126 688  0.2-  0.0     981212 684  0.2-  1.4-
    981124 688  0.4-  0.4+    981126 688  0.1-  0.2+    981212 684  0.2+  0.7-
    981124 688  0.1+  0.5+    981126 688  0.2-  0.1+    990106 684  0.1+  0.4-
    981124 688  0.2-  0.5+    981126 688  0.1-  0.2+    990106 684  0.4+  0.4-
    981124 688  0.2+  0.2+    981126 688  0.2-  0.2+    990109 684  0.8-  0.3-
    981124 688  0.1-  0.2+    981126 688  0.1+  0.1+    990109 684  0.2-  0.8+
    981125 688  0.2+  0.0     981126 688  0.1+  0.1+    990122 568  0.1+  0.3+
    981125 688  0.1+  0.2+    981126 688  0.1+  0.2+    990122 568  0.0   0.2+
    981125 688  0.1-  0.1-    981126 688  0.1+  0.3+    990123 568  0.1+  0.4+
    981125 688  0.1+  0.0     981126 688  0.0   0.1-    991007 568  0.1-  0.3+
    981125 688  0.1-  0.2+    981126 688  0.5+  0.3+    991007 568  0.1-  0.3+
    981125 688  0.1+  0.5+    981126 688  0.3+  0.1+    991008 568  0.1+  0.3-
    981125 688  0.0   0.1+    981210 684  1.1+  1.3-    991008 568  0.0   0.2-
    
    Ephemeris:
    1998 WH24                a,e,i = 46.03, 0.10, 12                 q = 41.328
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    1999 10 29    03 42.82   +21 27.4   41.480   42.394   156.7     0.5    20.9
    1999 11 08    03 42.01   +21 25.4   41.427   42.392   166.9     0.3    20.9
    1999 11 18    03 41.16   +21 23.1   41.403   42.391   176.7     0.1    20.9
    1999 11 28    03 40.30   +21 20.8   41.411   42.389   172.3     0.2    20.9
    1999 12 08    03 39.47   +21 18.4   41.449   42.387   162.0     0.4    20.9
    1999 12 18    03 38.70   +21 16.2   41.516   42.385   151.7     0.6    20.9
    1999 12 28    03 38.01   +21 14.2   41.610   42.383   141.4     0.8    21.0
    2000 01 07    03 37.44   +21 12.4   41.729   42.382   131.1     1.0    21.0
    2000 01 17    03 37.00   +21 11.1   41.868   42.380   120.8     1.1    21.0
    2000 01 27    03 36.72   +21 10.2   42.022   42.378   110.5     1.2    21.0
    2000 02 06    03 36.60   +21 09.8   42.188   42.376   100.4     1.3    21.0
    2000 02 16    03 36.65   +21 10.0   42.358   42.374    90.3     1.3    21.1
    2000 02 26    03 36.86   +21 10.8   42.529   42.373    80.3     1.3    21.1
    2000 03 07    03 37.25   +21 12.1   42.695   42.371    70.3     1.3    21.1
    2000 03 17    03 37.79   +21 14.0   42.851   42.369    60.5     1.2    21.1
    2000 03 27    03 38.46   +21 16.3   42.992   42.367    50.7     1.0    21.1
    2000 04 06    03 39.26   +21 19.1   43.115   42.365    41.0     0.9    21.1
    2000 04 16    03 40.17   +21 22.3   43.216   42.364    31.5     0.7    21.0
    
    Brian G. Marsden             (C) Copyright 1999 MPC           M.P.E.C. 1999-V03
    

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