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  • MPEC 2013-C42 : 2008 DG17

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    M.P.E.C. 2013-C42                                Issued 2013 Feb.  9, 11:25 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.minorplanetcenter.net/    ISSN 1523-6714
    
                                       2008 DG17
    
                               Revision to MPEC 2008-E01
    
    Additional Observations:
         K08D17G  C2013 02 08.43970 10 07 58.205+54 38 33.80         17.4 gLEC042F51
         K08D17G  C2013 02 08.45178 10 07 44.302+54 36 59.69         17.4 gLEC042F51
         K08D17G AC2013 02 09.33575 09 51 08.91 +52 28 36.6          17.3 VtEC042H06
         K08D17G AC2013 02 09.33647 09 51 08.01 +52 28 29.7          17.0 VtEC042H06
         K08D17G AC2013 02 09.33862 09 51 05.57 +52 28 09.5          17.0 VtEC042H06
         K08D17G AC2013 02 09.33932 09 51 04.70 +52 28 02.6          16.8 VtEC042H06
         K08D17G AC2013 02 09.34361 09 50 59.65 +52 27 20.4          17.0 VtEC042H06
         K08D17G AC2013 02 09.34433 09 50 58.72 +52 27 13.2          17.2 VtEC042H06
    
    Observer details:
    F51 Pan-STARRS 1, Haleakala.  Observers N. Primak, A. Schultz, S. Watters,
        T. Goggia.  Measurer PS1 Science Consortium.  1.8-m Ritchey-Chretien
        + CCD.
    H06 iTelescope Observatory, Mayhill.  Observer M. Urbanik.  0.25-m f/3.4
        astrograph + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
    130208 F51 0.81- 1.10+    130209 H06 0.89- 1.15+    MPO138153   +0.22 day
    
    Orbital elements:
    2008 DG17                                                Earth MOID = 0.0807 AU
    Epoch 2013 Apr. 18.0 TT = JDT 2456400.5                 MPC
    M  11.89491              (2000.0)            P               Q
    n   0.39563110     Peri.  214.98434     -0.91768123     +0.10693345
    a   1.8377049      Node   324.40729     +0.26513695     -0.55247578
    e   0.4493298      Incl.   41.10677     -0.29591139     -0.82664125
    P   2.49           H   19.7           G   0.15           U   2
    Residuals in seconds of arc
    080229 703  0.3-  0.3+    080229 G96  0.0   0.3-    080302 130  0.4+  1.2+
    080229 703  0.7-  0.2-    080229 G96  0.4-  0.1-    080302 130  0.6-  0.1-
    080229 703  0.0   0.7-    080301 H55  0.3-  0.0     080313 474  0.3+  0.1+
    080229 703  0.1+  0.8-    080301 H55  0.2-  0.1-    080313 474  0.0   0.0
    080229 703  0.5+  0.1+    080301 H55  0.1-  0.9-    080313 474  0.1-  0.0
    080229 703  0.8-  0.8-    080301 H55 (0.2-  1.7-)   080313 474  0.1-  0.2-
    080229 703  0.5-  0.6-    080301 H55  0.3-  0.1+    080409 474  0.0   0.3-
    080229 703  0.3-  0.4+    080301 704  0.5+  0.9+    080409 474  0.1+  0.2-
    080229 703  0.0   0.5+    080301 704  0.3+  0.7+    080409 474  0.2-  0.1+
    080229 703 (1.6-  0.4+)   080301 704  0.8+  0.3+    080409 474  0.4-  0.2+
    080229 651  0.8-  0.6+    080301 291  0.1+  0.4-    130208 F51  0.1+  0.1+
    080229 651  0.7+  1.0+    080301 291  0.5+  0.1-    130208 F51  0.1-  0.1+
    080229 651  0.1+  1.2+    080301 704  0.6+  0.6-    130209 H06  0.2+  0.2-
    080229 G96  0.2+  0.2-    080301 291  0.0   0.3-    130209 H06  0.3-  0.2-
    080229 G96  0.1+  0.2-    080301 704  0.1+  0.2+    130209 H06  0.5+  0.4+
    080229 G96  0.3+  0.2-    080302 H55  0.1-  0.1-    130209 H06  0.1+  0.2+
    080229 G96  0.5-  0.2-    080302 H55  0.0   0.0     130209 H06  0.0   0.6-
    080229 G96  0.2-  0.2-    080302 H55  0.2+  0.0     130209 H06  0.7-  0.8-
    080229 G96  0.2-  0.1-    080302 130  0.2+  0.6+
    
    Ephemeris:
    2008 DG17                a,e,i = 1.84, 0.45, 41                  q = 1.0120
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2013 01 10    13 20 03.7 +62 13 32   0.5132  1.2550   110.0    47.4    20.5
    ...
    2013 01 25    12 48 17.2 +62 42 40   0.3199  1.1706   118.3    47.7    19.4
    ...
    2013 02 02    11 45 55.7 +61 37 28   0.2189  1.1303   126.8    44.3    18.4
    ...
    2013 02 08    10 16 00.9 +55 32 38   0.1497  1.1030   138.4    36.4    17.3
    2013 02 09    09 57 31.0 +53 20 06   0.1395  1.0987   141.0    34.4    17.1
    2013 02 10    09 38 30.0 +50 34 05   0.1300  1.0945   143.8    32.1    16.8
    ...
    2013 02 16    07 50 05.7 +18 54 23   0.09595 1.0710   148.6    28.7    16.0
    ...
    2013 02 24    06 19 33.1 -25 56 02   0.1391  1.0452   109.9    62.9    17.7
    ...
    2013 03 11    05 13 43.1 -47 38 08   0.3087  1.0160    85.3    77.0    19.9
    
    A. U. Tomatic                (C) Copyright 2013 MPC           M.P.E.C. 2013-C42
    

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