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  • MPEC 2006-A18 : 2003 NP7

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    M.P.E.C. 2006-A18                                Issued 2006 Jan. 5, 14:34 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.
    
                      Supported in part by the Brinson Foundation
                      Supported in part by the TABASGO Foundation
                 Prepared using the Tamkin Foundation Computer Network
    
                                  MPC@CFA.HARVARD.EDU
              URL http://cfa-www.harvard.edu/iau/mpc.html  ISSN 1523-6714
    
                                       2003 NP7
    
                               Revision to MPEC 2003-N43
    
    Additional Observations:
         K03N07P  C2000 09 27.28416822 51 37.572+14 13 32.85         20.83V EA018645
         K03N07P  C2000 09 27.28764022 51 37.390+14 13 30.96         21.49  EA018645
         K03N07P  C2005 12 25.45117 09 46 09.87 +07 10 04.7                 EA018291
         K03N07P  C2005 12 25.45702 09 46 09.83 +07 10 02.5                 EA018291
         K03N07P  C2005 12 25.46281 09 46 09.77 +07 10 00.1                 EA018291
         K03N07P HC2006 01 05.37959 09 42 49.36 +06 07 00.3                 EA018291
         K03N07P  C2006 01 05.38649 09 42 49.11 +06 06 58.5          22.0 V EA018291
         K03N07P  C2006 01 05.39544 09 42 48.82 +06 06 55.8          21.2 V EA018291
    
    Observer details:
    291 LPL/Spacewatch II.  Observer T. H. Bressi.  1.8-m f/2.7 reflector + CCD.
    645 Apache Point--Sloan Digitial Sky Survey.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
    000927 645 0.10+ 0.05+    060105 291 0.07- 0.03+    MPO 62445   +0.19 day
    
    Orbital elements:
    2003 NP7                                                 Earth MOID = 0.2806 AU
    Epoch 2006 Mar. 6.0 TT = JDT 2453800.5                  MPC
    M 306.91355              (2000.0)            P               Q
    n   0.30594919     Peri.  323.43210     -0.35043947     +0.91798892
    a   2.1812386      Node   285.39423     -0.80717678     -0.39659208
    e   0.4166829      Incl.   11.10582     -0.47503454     -0.00332531
    P   3.22           H   18.2           G   0.15           U   1
    Residuals in seconds of arc
    000927 645  0.0   0.1-    030716 649  0.0   0.3+    030803 448  0.1-  0.4-
    000927 645  0.0   0.0     030716 649  0.1+  0.0     030803 448  0.2-  0.1-
    030707 644  0.3-  0.3-    030716 649  0.5+  0.2-    030803 448  0.7-  0.8+
    030707 644  0.1+  0.2-    030716 448  0.2+  0.2-    030819 413  0.1+  0.3-
    030707 644  0.2+  0.1-    030716 428  0.3+  0.3-    031025 568  0.1-  0.1+
    030711 809  0.2+  0.3-    030716 428  0.0   0.4-    031025 568  0.0   0.0
    030711 809  0.1+  0.4-    030716 428  0.4-  0.4-    031029 696  0.2+  1.6-
    030711 809  0.1+  0.4-    030720 448  0.1+  0.1-    031029 696  0.8+  1.9-
    030712 711  1.8-  0.4-    030720 448  0.2-  0.0     051225 291  0.1-  0.9+
    030712 711  0.5-  0.9+    030720 448  0.1+  0.0     051225 291  0.1+  0.9+
    030712 711  1.2-  0.2-    030726 448  0.1-  0.5+    051225 291  0.0   0.7+
    030712 809  0.3+  0.4-    030726 448  0.1-  0.1+    060105 291  1.2+  0.5+
    030712 809  0.2+  0.4-    030726 448  0.7+  1.0+    060105 291  0.8+  0.8+
    030716 448  0.4+  0.1-    030727 952  1.1+  1.3+    060105 291  0.7+  0.9+
    030716 448  0.1-  0.0     030727 952  0.1+  1.7+
    030716 448  0.1-  0.0     030727 952  1.1+  2.1+
    
    Ephemeris:
    2003 NP7                 a,e,i = 2.18, 0.42, 11                  q = 1.2724
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2006 01 05    09 43.01   +06 09.0    1.435    2.264   138.0    16.9    21.7
    2006 01 15    09 36.42   +05 22.4    1.315    2.217   148.9    13.2    21.3
    2006 01 25    09 26.40   +04 49.0    1.217    2.169   159.9     9.0    20.9
    2006 02 04    09 13.57   +04 30.7    1.145    2.119   168.1     5.5    20.6
    2006 02 14    08 59.29   +04 26.9    1.100    2.069   164.9     7.2    20.5
    2006 02 24    08 45.38   +04 34.9    1.081    2.018   154.1    12.4    20.6
    2006 03 06    08 33.66   +04 50.4    1.085    1.966   142.2    18.0    20.8
    2006 03 16    08 25.57   +05 07.7    1.109    1.913   130.8    23.2    20.9
    2006 03 26    08 21.77   +05 21.9    1.145    1.860   120.4    27.6    21.1
    2006 04 05    08 22.41   +05 29.3    1.189    1.807   111.0    31.1    21.2
    2006 04 15    08 27.21   +05 26.5    1.235    1.753   102.6    33.9    21.3
    2006 04 25    08 35.75   +05 11.7    1.282    1.700    95.3    36.1    21.4
    2006 05 05    08 47.59   +04 43.2    1.325    1.648    88.8    37.7    21.4
    2006 05 15    09 02.32   +03 59.9    1.364    1.596    83.0    38.9    21.4
    2006 05 25    09 19.59   +03 01.1    1.397    1.546    78.0    39.8    21.5
    2006 06 04    09 39.15   +01 46.4    1.425    1.499    73.6    40.5    21.4
    2006 06 14    10 00.80   +00 15.8    1.447    1.453    69.9    41.0    21.4
    2006 06 24    10 24.39   -01 29.8    1.463    1.412    66.6    41.4    21.4
    2006 07 04    10 49.87   -03 29.3    1.476    1.374    63.8    41.6    21.4
    2006 07 14    11 17.17   -05 40.7    1.485    1.341    61.5    41.8    21.3
    
    Timothy B. Spahr             (C) Copyright 2006 MPC           M.P.E.C. 2006-A18
    

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