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IAU Minor Planet Center

Minor Planet Center

MPEC 2008-L41 : 2007 NC7

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M.P.E.C. 2008-L41                                Issued 2008 June 10, 01:24 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://www.cfa.harvard.edu/iau/mpc.html  ISSN 1523-6714

                                   2007 NC7

                           Revision to MPEC 2007-R25

Additional Observations:
     K07N07C  C2007 08 20.20228 20 56 18.06 -18 45 30.0          21.0 R EL041675
     K07N07C  C2007 08 20.24391 20 56 17.71 -18 45 30.2          20.8 R EL041675
     K07N07C  C2007 08 21.19766 20 56 09.39 -18 45 58.6          20.9 R EL041675
     K07N07C  C2007 08 21.24138 20 56 08.99 -18 45 59.8          20.9 R EL041675
     K07N07C  C2008 06 07.41506 21 22 13.68 -16 26 24.3                 EL041675
     K07N07C  C2008 06 09.41025 21 22 07.77 -16 26 47.3                 EL041675

Observer details:
675 Palomar Mountain.  Observers M. E. Schwamb, M. E. Brown, D. Rabinowitz.
    1.2-m Oschin Schmidt + CCD, 1.5-m f/8.5 Cassegrain + CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees) and reference
070820 675  0.6-  0.2-    080609 675 0.15- 0.05-    MPO124513

Orbital elements:
2007 NC7
Epoch 2008 May 14.0 TT = JDT 2454600.5                  MPC
M  21.32705              (2000.0)            P               Q
n   0.00502899     Peri.  287.94621     -0.30415808     +0.95045038
a  33.7403053      Node   324.14373     -0.82722075     -0.29698142
e   0.4938933      Incl.    6.30029     -0.47243380     -0.09190275
P 195.99           H    8.5           G   0.15           U   4
Residuals in seconds of arc
070711 675  0.1-  0.0     070807 675  0.3+  0.8-    070821 675  0.1-  0.4+
070711 675  0.2-  0.2+    070807 675  0.4-  0.0     070821 675  0.1+  0.0
070712 675  0.1-  1.1+    070807 675  0.2+  0.2-    070821 675  0.3+  0.1+
070712 675  0.0   0.0     070820 675  0.5-  0.4-    080607 675  0.3+  0.0
070724 675  0.0   0.7-    070820 675  0.2-  0.7+    080609 675  0.3-  0.0
070724 675  0.3+  0.4-    070821 675  0.1+  0.3+
070724 675  0.3+  0.2-    070821 675  0.1+  0.1-

Ephemeris:
2007 NC7                 a,e,i = 33.74, 0.49, 6                  q = 17.076
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2008 06 03    21 22.40   -16 25.7   20.414   20.860   114.8     2.5    21.9
2008 06 13    21 21.93   -16 27.6   20.283   20.875   124.5     2.3    21.9
2008 06 23    21 21.18   -16 30.7   20.168   20.890   134.2     2.0    21.9
2008 07 03    21 20.18   -16 34.8   20.074   20.905   144.0     1.6    21.8
2008 07 13    21 18.99   -16 39.7   20.003   20.920   153.9     1.2    21.8
2008 07 23    21 17.65   -16 45.2   19.958   20.935   163.7     0.8    21.7
2008 08 02    21 16.20   -16 51.0   19.941   20.950   173.6     0.3    21.7
2008 08 12    21 14.72   -16 56.9   19.954   20.965   176.3     0.2    21.7
2008 08 22    21 13.25   -17 02.6   19.996   20.981   166.4     0.7    21.7
2008 09 01    21 11.87   -17 07.7   20.067   20.996   156.4     1.1    21.8
2008 09 11    21 10.63   -17 12.2   20.165   21.011   146.4     1.5    21.8
2008 09 21    21 09.59   -17 15.7   20.287   21.026   136.4     1.9    21.9
2008 10 01    21 08.78   -17 18.1   20.432   21.041   126.4     2.2    21.9
2008 10 11    21 08.25   -17 19.2   20.593   21.056   116.4     2.4    22.0
2008 10 21    21 08.02   -17 19.1   20.768   21.071   106.4     2.6    22.0
2008 10 31    21 08.10   -17 17.5   20.951   21.087    96.5     2.7    22.0
2008 11 10    21 08.51   -17 14.6   21.138   21.102    86.6     2.7    22.0
2008 11 20    21 09.23   -17 10.3   21.322   21.117    76.7     2.6    22.0
2008 11 30    21 10.26   -17 04.7   21.501   21.132    66.8     2.5    22.1
2008 12 10    21 11.56   -16 57.8   21.667   21.148    57.0     2.2    22.1
2008 12 20    21 13.11   -16 49.9   21.818   21.163    47.3     2.0    22.1
2008 12 30    21 14.87   -16 41.1   21.950   21.178    37.5     1.6    22.0

Brian G. Marsden             (C) Copyright 2008 MPC           M.P.E.C. 2008-L41

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