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Minor Planet Center

MPEC 2000-E62 : 1999 WC2

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M.P.E.C. 2000-E62                                Issued 2000 Mar. 15, 21:01 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

                                   1999 WC2

                           Revision to MPEC 1999-W32

Observations:
     J99W02C 1 1990 07 27.30486 20 22 40.73 +22 10 52.5                      675
     J99W02C 1 1990 07 27.34306 20 22 35.91 +22 10 51.2                      675

Observer details:
675 Palomar Mountain.  Trail located and measured by A. Boattini, G. Forti,
    M. Tombelli, L. Tesi.  1.2-m Schmidt.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
900727 675 0.67+ 0.22+    900727 675 0.67+ 0.22+    MPC 38829   -1.2 day

Orbital elements:
1999 WC2
Epoch 2000 Feb. 26.0 TT = JDT 2451600.5                 Williams
M   3.43793              (2000.0)            P               Q
n   0.29881641     Peri.  286.89026     -0.83230831     +0.25796431
a   2.2158129      Node   270.28752     -0.08365523     -0.93343076
e   0.6384529      Incl.   29.38237     -0.54796412     -0.24932194
P   3.30           H   16.5           G   0.15           U   2
Residuals in seconds of arc
900727 675  0.7-  0.1-    991121 046  0.3+  0.2-    991217 670  0.8+  1.8-
900727 675  0.5+  0.7+    991121 046  0.2-  0.5+    991217 670  0.9-  0.5+
991117 704  0.5-  0.5+    991121 046  0.0   0.7+    991218 428  1.7+  0.4+
991117 704  1.2-  0.4-    991121 046  0.6-  0.3-    991218 428  0.1-  0.4+
991117 704  0.6-  0.4+    991121 046  0.5+  0.0     991230 413  0.3-  0.2-
991117 704  0.1-  0.5+    991127 046  1.2-  1.5+    991230 413  0.5-  0.4+
991119 557  0.0   0.6-    991127 046  0.0   0.1+    000207 413  0.2-  0.2+
991119 557  0.7-  0.1-    991127 046  1.8+  0.3+    000207 413  0.0   0.3+
991119 557  0.2+  1.4-    991127 046  0.1-  0.6-    000210 422  0.1-  0.0
991119 557  0.5+  0.7-    991216 670 (2.5-  0.0 )   000210 422  0.1+  0.8-
991120 587  0.9+  0.6+    991216 670 (0.6-  2.2-)   000210 422  0.6-  0.2+

Gareth V. Williams           (C) Copyright 2000 MPC           M.P.E.C. 2000-E62

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