MPEC 2002-X06 : 2002 WC1 = 1998 YD30

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M.P.E.C. 2002-X06                                Issued 2002 Dec. 2, 15:34 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

                              MPC@CFA.HARVARD.EDU
          URL http://cfa-www.harvard.edu/iau/mpc.html  ISSN 1523-6714

                             2002 WC1 = 1998 YD30

                           Revision to MPEC 2002-W35

Additional Observations:
     K02W01C  C1999 04 15.30920 13 40 32.59 -05 21 47.6                      693
     K02W01C  C1999 04 15.31682 13 40 31.92 -05 21 48.6                      693
     K02W01C  C1999 04 15.32436 13 40 31.34 -05 21 49.6          20.7 R      693

Observer details:
693 Catalina Station, Tucson.  Observer C. W. Hergenrother.  1.5-m reflector
    + CCD.

Orbital elements:
2002 WC1 = 1998 YD30
Epoch 2002 Nov. 22.0 TT = JDT 2452600.5                 MPC
M 340.30050              (2000.0)            P               Q
n   0.24124240     Peri.   77.60713     -0.54736209     -0.83482983
a   2.5556436      Node    45.74075     +0.73242718     -0.51182803
e   0.5861687      Incl.    4.70693     +0.40490143     -0.20270968
P   4.09           H   19.8           G   0.15           U   3
Residuals in seconds of arc
981221 704  1.0+  0.5+    021123 673  1.5-  0.1+    021124 673  1.4+  0.1+
981221 704  1.1-  0.5+    021123 673  0.3-  0.0     021124 673  1.2-  0.2+
981221 704  1.2-  0.4-    021123 673  0.6-  0.5-    021124 926 (1.8-  3.1+)
981221 704 (2.7-  0.0 )   021123 448  0.4-  0.2+    021124 926  0.3+  0.3+
981222 046  0.7-  0.4-    021123 448  0.3-  0.1+    021124 926  0.3-  0.3+
981222 046  0.8+  0.4-    021123 448  0.4+  0.1+    021124 926  1.1-  0.3+
981222 046  0.1-  0.4-    021123 448  0.1+  0.3+    021128 715  0.2-  0.3+
981222 046  0.8+  0.1-    021123 046  0.7-  0.5-    021128 715  0.2-  0.3+
981222 046  0.4-  0.2+    021123 046 (0.2-  2.5-)   021128 715  0.2+  0.0
981222 046  0.4+  0.1-    021123 046  1.6+  0.7-    021201 246  0.4-  0.3+
990415 693  0.0   0.3+    021123 557  0.7+  1.1-    021201 246  0.0   0.2+
990415 693  0.2-  0.4+    021123 557  0.7-  1.1-    021201 246  0.2-  0.9+
990415 693  0.8+  0.4+    021123 557  0.9+  1.2-    021201 246  0.3+  0.5+
021122 644  0.4+  0.5+    021123 557 (2.6+  1.6-)   021201 246  0.7-  0.6+
021122 644  0.1+  0.0     021124 673  0.8+  0.0     021201 246  0.4-  0.9+
021122 644  0.4+  0.0     021124 673  0.6+  0.1+

Ephemeris:
2002 WC1                 a,e,i = 2.56, 0.59, 5                   q = 1.0576
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2002 12 02    01 31.09   +11 57.7    0.483    1.374   135.8    30.0    20.2
2002 12 12    01 22.48   +12 47.7    0.466    1.304   124.0    38.8    20.3
2002 12 22    01 20.29   +14 16.4    0.454    1.239   113.9    46.6    20.3
2003 01 01    01 24.97   +16 25.9    0.441    1.181   105.5    53.4    20.3
2003 01 11    01 36.77   +19 16.9    0.425    1.131    99.1    59.2    20.3
2003 01 21    01 56.07   +22 47.6    0.406    1.093    94.4    63.8    20.3
2003 01 31    02 23.92   +26 52.6    0.383    1.068    91.8    67.2    20.2
2003 02 10    03 02.61   +31 18.3    0.360    1.058    91.3    68.8    20.1
2003 02 20    03 55.14   +35 30.5    0.340    1.063    93.1    68.2    20.0
2003 03 02    05 03.14   +38 20.4    0.330    1.083    97.2    65.2    19.9
2003 03 12    06 21.72   +38 23.7    0.335    1.117   103.0    60.1    19.8
2003 03 22    07 37.90   +35 13.5    0.359    1.163   108.9    54.1    19.9
2003 04 01    08 41.19   +29 58.5    0.405    1.219   113.5    48.7    20.1
2003 04 11    09 30.29   +24 11.4    0.472    1.282   116.2    44.6    20.4
2003 04 21    10 08.42   +18 46.9    0.557    1.350   116.8    41.6    20.8
2003 05 01    10 39.06   +14 02.3    0.658    1.423   115.8    39.6    21.2
2003 05 11    11 04.87   +09 56.2    0.775    1.498   113.5    38.2    21.7

Gareth V. Williams           (C) Copyright 2002 MPC           M.P.E.C. 2002-X06

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