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  • MPEC 2012-S43 : COMET P/2011 S1 (GIBBS)

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    M.P.E.C. 2012-S43                                Issued 2012 Sept. 21, 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.
    
                 Prepared using the Tamkin Foundation Computer Network
    
                                  MPC@CFA.HARVARD.EDU
                URL https://www.minorplanetcenter.net/    ISSN 1523-6714
    
                                COMET P/2011 S1 (GIBBS)
    
    Observations:
        PK11S010  C2012 09 17.38918 00 49 13.18 +06 49 54.4          20.4 TrES043G96
        PK11S010  C2012 09 17.39613 00 49 13.04 +06 49 53.5          20.5 TrES043G96
        PK11S010  C2012 09 17.40304 00 49 12.93 +06 49 51.9          20.5 TrES043G96
        PK11S010  C2012 09 17.41007 00 49 12.82 +06 49 51.2          21.0 TrES043G96
        PK11S010  C2012 09 21.36597 00 47 56.07 +06 41 24.5          20.8 TrES043G96
        PK11S010  C2012 09 21.37264 00 47 55.93 +06 41 23.1          20.8 TrES043G96
        PK11S010  C2012 09 21.37939 00 47 55.75 +06 41 22.8          20.2 TrES043G96
        PK11S010  C2012 09 21.38611 00 47 55.64 +06 41 21.5          20.3 TrES043G96
        PK11S010  C2012 09 21.43530 00 47 54.67 +06 41 15.2          20.0 TrES043G96
        PK11S010  C2012 09 21.43645 00 47 54.63 +06 41 15.3          20.3 TrES043G96
        PK11S010  C2012 09 21.43758 00 47 54.63 +06 41 15.4          20.2 TrES043G96
        PK11S010  C2012 09 21.44194 00 47 54.52 +06 41 14.7          20.3 TrES043G96
    
    Observer details:
    G96 Mt. Lemmon Survey.  Observers R. A. Kowalski, A. R. Gibbs.  Measurers
        A. Boattini, E. J. Christensen, A. R. Gibbs, A. D. Grauer, R. E. Hill,
        R. A. Kowalski, S. M. Larson, R. H. McNaught.  1.5-m reflector + CCD.
    
    Orbital elements:
        P/2011 S1 (Gibbs)
    Epoch 2014 Sept. 20.0 TT = JDT 2456920.5
    T 2014 Oct. 3.04568 TT                                  MPC
    q   6.8257836            (2000.0)            P               Q
    n   0.03871285     Peri.  196.30806     +0.57147285     -0.82009541
    a   8.6543135      Node   218.85242     +0.75803700     +0.54125817
    e   0.2112854      Incl.    2.68302     +0.31432259     +0.18569630
    P  25.46
    From 59 observations 2011 Sept. 6-2012 Sept. 21, mean residual 0".54.
    
    Residuals in seconds of arc
    110906 F51  0.1-  0.2+    110920 807  0.4+  0.7+    110924 152  0.5+  0.4-
    110906 F51  0.1-  0.0     110920 807  0.3+  0.7+    110924 152  1.9+  1.2+
    110906 F51  0.0   0.2+    110920 291  1.0-  0.2+    111003 C32 (2.5+  0.7+)
    110906 F51  0.1+  0.2+    110920 291  0.1+  0.3+    111003 C32  0.7+  0.5+
    110906 F51  0.0   0.2+    110920 291  0.8-  0.0     111028 C32 (9.1+  3.0+)
    110918 G96  0.3+  0.9-    110920 F65  0.3-  0.1-    111028 C32 (7.7+  2.8+)
    110918 G96  0.9-  0.3-    110920 F65  0.3-  0.1-    111028 C32 (8.6+  2.5+)
    110918 G96  0.2+  0.3-    110920 F65  0.6+  0.2-    111028 C32 (8.4+  2.3+)
    110918 G96  0.9-  0.0     110921 E10  0.1+  1.2-    111114 204  0.6-  0.2+
    110918 G96  1.0-  0.6-    110921 E10  0.3+  0.5-    111114 204  0.5-  1.0+
    110918 G96  0.6-  0.0     110921 E10  0.3+  0.5-    120917 G96  1.3-  0.2-
    110918 G96  0.0   0.3+    110923 H06 (0.4+  1.9-)   120917 G96  1.4-  0.2-
    110918 F51  0.3+  0.2-    110923 H06  0.6+  0.8-    120917 G96  1.0-  0.9-
    110918 F51  0.3+  0.1+    110924 G96  0.3-  0.2-    120917 G96  0.6-  0.7-
    110918 F51  0.3+  0.0     110924 G96  0.4-  0.1+    120921 G96  0.7+  0.3+
    110918 F51  0.0   0.1-    110924 G96  0.9-  0.4+    120921 G96  0.6+  0.2-
    110918 F51  0.1+  0.1-    110924 G96  0.1+  0.6-    120921 G96  0.0   0.4+
    110918 F51  0.1+  0.0     110924 G96  0.1+  0.4-    120921 G96  0.4+  0.1-
    110919 G96  0.0   0.5+    110924 G96  0.4+  0.3-    120921 G96  0.8+  0.1+
    110919 G96  0.2-  0.1+    110924 G96  0.2+  0.4-    120921 G96  0.5+  0.4+
    110919 G96  0.4-  0.4-    110924 G96  0.1-  0.5-    120921 G96  0.9+  0.6+
    110919 G96  1.0-  0.5-    110924 152 (0.0   2.9-)   120921 G96  0.5+  0.5+
    
    Ephemeris:
        P/2011 S1 (Gibbs)
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
    2012 08 22    00 55 45.1 +07 31 49   6.4643  7.1966   133.4     5.9  20.6
    ...
    2012 09 06    00 52 32.3 +07 11 30   6.3027  7.1833   148.7     4.2  20.6
    ...
    2012 09 14    00 50 16.4 +06 56 49   6.2389  7.1762   157.1     3.1  20.5
    ...
    2012 09 20    00 48 22.9 +06 44 23   6.2026  7.1710   163.5     2.3  20.5
    2012 09 21    00 48 03.3 +06 42 13   6.1976  7.1701   164.5     2.1  20.5
    2012 09 22    00 47 43.5 +06 40 01   6.1928  7.1693   165.6     2.0  20.5
    ...
    2012 09 28    00 45 41.4 +06 26 26   6.1706  7.1641   172.0     1.1  20.5
    ...
    2012 10 06    00 42 54.1 +06 07 29   6.1578  7.1572   178.4     0.2  20.5
    ...
    2012 10 21    00 37 48.0 +05 31 52   6.1866  7.1445   163.0     2.3  20.5
    
    Gareth V. Williams           (C) Copyright 2012 MPC           M.P.E.C. 2012-S43
    

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