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  • MPEC 2013-P71 : 2013 PW31

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    M.P.E.C. 2013-P71                                Issued 2013 Aug. 13, 20:50 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
    
                                       2013 PW31
    
    Observations:
         K13P31W* C2013 08 12.26598 22 47 02.80 -06 05 32.2          21.2 VoEP071691
         K13P31W  C2013 08 12.28362 22 47 04.66 -06 05 47.7          20.8 VoEP071691
         K13P31W  C2013 08 12.30127 22 47 06.54 -06 06 04.0          21.1 VoEP071691
         K13P31W KC2013 08 12.34499 22 47 10.91 -06 06 42.6          20.6 RoEP071291
         K13P31W KC2013 08 12.34865 22 47 11.27 -06 06 45.9          20.8 RoEP071291
         K13P31W KC2013 08 12.35231 22 47 11.64 -06 06 49.0          20.8 RoEP071291
         K13P31W KC2013 08 12.48048 22 47 24.56 -06 08 39.6          20.5 RoEP071291
         K13P31W KC2013 08 12.48489 22 47 25.04 -06 08 43.6          20.9 RoEP071291
         K13P31W KC2013 08 13.33656 22 49 05.42 -06 20 58.8          20.2 RoEP071291
         K13P31W KC2013 08 13.34446 22 49 06.16 -06 21 05.6          20.4 RoEP071291
         K13P31W KC2013 08 13.35236 22 49 06.92 -06 21 12.2          20.5 RoEP071291
    
    Observer details:
    291 LPL/Spacewatch II.  Observer R. S. McMillan.  1.8-m f/2.7 reflector + CCD.
    691 Steward Observatory, Kitt Peak.  Observer R. S. McMillan.  0.9-m f/3
        reflector + CCD.
    
    Orbital elements:
    2013 PW31                                                Earth MOID = 0.0848 AU
    Epoch 2013 Apr. 18.0 TT = JDT 2456400.5                 MPC
    M 339.05769              (2000.0)            P               Q
    n   0.25265418     Peri.  141.75169     +0.31010081     +0.95018795
    a   2.4780975      Node   146.28065     -0.88555430     +0.30067543
    e   0.5588477      Incl.    3.23334     -0.34587725     +0.08208008
    P   3.90           H   23.6           G   0.15           U   8
    Residuals in seconds of arc
    130812 691  0.6-  0.1+    130812 291  0.1-  0.2-    130813 291  0.3-  0.0
    130812 691  0.2-  0.3+    130812 291  0.0   0.1-    130813 291  0.2-  0.1-
    130812 691  0.8+  0.2-    130812 291  0.3-  0.2+    130813 291  0.3+  0.1+
    130812 291  0.0   0.1-    130812 291  0.0   0.0
    
    Ephemeris:
    2013 PW31                a,e,i = 2.48, 0.56, 3                   q = 1.0932
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2013 07 14    20 06 40.3 +03 42 19   0.08637 1.0943   153.3    24.7    19.6
    ...
    2013 07 29    21 59 11.3 -01 51 43   0.1139  1.1180   152.9    24.4    20.3
    ...
    2013 08 06    22 31 19.1 -04 24 51   0.1391  1.1422   155.3    21.8    20.7
    ...
    2013 08 12    22 46 28.6 -06 01 05   0.1615  1.1651   158.5    18.6    20.9
    2013 08 13    22 48 26.8 -06 15 38   0.1655  1.1693   159.1    18.0    21.0
    2013 08 14    22 50 17.0 -06 29 45   0.1696  1.1735   159.7    17.4    21.0
    ...
    2013 08 20    22 58 53.3 -07 46 06   0.1957  1.2012   164.0    13.4    21.2
    ...
    2013 08 28    23 05 36.6 -09 06 44   0.2354  1.2428   170.2     7.9    21.5
    ...
    2013 09 12    23 10 54.4 -10 35 59   0.3276  1.3324   173.3     5.1    22.2
    
    A. U. Tomatic                (C) Copyright 2013 MPC           M.P.E.C. 2013-P71
    

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