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IAU Minor Planet Center

Minor Planet Center

MPEC 2003-C59 : 2001 SK9

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M.P.E.C. 2003-C59                                Issued 2003 Feb. 11, 16:26 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

                                   2001 SK9

                           Revision to MPEC 2001-S15

Additional Observations:
     K01S09K 9C2003 01 27.05730 02 56 01.05 -05 02 42.9          22.6 R      809
     K01S09K 9C2003 01 27.05974 02 56 01.05 -05 02 42.1          22.6 R      809
     K01S09K 9C2003 01 27.06218 02 56 01.05 -05 02 41.3          23.0 R      809
     K01S09K 9C2003 01 29.06084 02 56 07.65 -04 51 09.7          22.8 R      809
     K01S09K 9C2003 01 29.06398 02 56 07.65 -04 51 08.5          22.9 R      809
     K01S09K 9C2003 01 29.06709 02 56 07.66 -04 51 07.3          22.7 R      809

Observer details:
809 European Southern Observatory, La Silla.  Observers A. Boattini,
    O. Hainaut, R. Michelsen.  Measurers A. Boattini, H. Scholl, G. Hahn,
    M. Carpino, G. Forti, G. D'Abramo.  3.58-m New Technology Telescope + CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
030127 809 26.8-  2.1-    030129 809 27.2-  1.5-    MPO 20981   +0.13 day

Orbital elements:
2001 SK9
Epoch 2002 Nov. 22.0 TT = JDT 2452600.5                 MPC
M 220.44399              (2000.0)            P               Q
n   0.41321444     Peri.   34.22047     -0.65511135     +0.74568108
a   1.7851953      Node   196.04321     -0.75338603     -0.65685652
e   0.7883404      Incl.   26.10619     -0.05690872     +0.11179996
P   2.39           H   18.6           G   0.15           U   4
Residuals in seconds of arc
010917 704  0.0   1.0+    010919 704  0.3-  0.3+    010920 691  0.0   0.3-
010917 704  0.1-  0.2-    010919 704  0.8-  0.2-    010920 691  0.8+  0.0
010917 704  0.8-  0.6-    010919 704  0.2-  0.2+    010920 691  0.1+  0.3-
010918 691  0.5-  0.2-    010919 704  0.5-  1.3+    010924 704  0.1+  1.2+
010918 691  0.3-  0.1+    010919 691  0.4-  0.4-    010924 704  0.1+  0.3+
010918 691  0.4-  0.3-    010919 691  0.5-  0.4-    010924 704  0.3-  0.6+
010918 684  0.4-  0.1+    010919 691  0.5-  0.2-    011012 649  0.2+  0.0
010918 684  0.4-  0.3-    010919 046  0.0   0.5-    011012 649  0.1-  0.2+
010918 684  0.2+  0.2-    010919 046  0.4+  0.6-    011012 649  0.2+  0.5+
010918 422  1.7+  1.4+    010919 046  1.8+  0.0     011017 644  0.4+  0.7-
010918 422  1.0+  1.3+    010919 046  0.5-  0.6-    011017 644  0.2+  0.5-
010918 046  0.2-  0.6-    010920 704  0.2+  0.1-    011017 644  0.2-  0.7-
010918 046  0.4+  0.3-    010920 704  0.9-  0.1+    011017 644  0.3+  0.7-
010918 046  0.1+  0.0     010920 704  0.4+  0.3-    011017 644  0.2-  0.4-
010918 046  0.2+  0.4+    010920 704  1.7+  0.2-    011017 644  1.1+  0.2-
010919 557  0.1-  0.2-    010920 704  0.4+  0.4-    011115 291 (0.1-  2.7+)
010919 557  0.3-  0.1-    010920 704  0.1+  0.3-    011115 291 (0.4-  2.5+)
010919 557  0.1-  0.1-    010920 704  0.5+  0.4-    011115 291  1.6-  1.3+
010919 557  0.2-  0.3+    010920 704  0.0   0.5-    030127 809  0.3+  0.3-
010919 704  0.2-  0.3-    010920 291  0.2+  0.2+    030127 809  0.3+  0.3-
010919 704  0.4-  0.5+    010920 291  0.5+  0.4+    030127 809  0.2+  0.3-
010919 704  0.5-  0.3+    010920 649  0.8-  0.0     030129 809  0.2-  0.2+
010919 704  1.2-  0.4+    010920 649  0.1-  0.3-    030129 809  0.3-  0.3+
010919 704  0.2-  0.2+    010920 649  0.0   0.3-    030129 809  0.4-  0.5+
010919 704  0.6-  0.1-    010920 291  1.4+  0.7+

Ephemeris:
2001 SK9                 a,e,i = 1.79, 0.79, 26                  q = 0.3779
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2003 02 10    02 58.66   -03 37.3    2.801    2.818    80.9    20.2    24.1
2003 02 20    03 03.02   -02 31.0    2.902    2.773    72.7    19.9    24.1
2003 03 02    03 09.15   -01 22.9    2.993    2.725    64.9    19.2    24.1
2003 03 12    03 16.87   -00 14.7    3.071    2.674    57.6    18.3    24.1
2003 03 22    03 25.98   +00 52.4    3.135    2.619    50.7    17.1    24.1

A. U. Tomatic                (C) Copyright 2003 MPC           M.P.E.C. 2003-C59

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