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  • MPEC 2015-D75 : 2013 EP41

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    M.P.E.C. 2015-D75                                Issued 2015 Feb. 24, 18:01 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
    
                                       2013 EP41
    
                               Revision to MPEC 2013-E55
    
    Additional Observations:
         K13E41P  C2015 02 19.35894 09 00 35.819-01 11 52.41         21.7 wLED075F51
         K13E41P  C2015 02 19.37179 09 00 34.923-01 11 37.14         21.8 wLED075F51
         K13E41P  C2015 02 19.39741 09 00 33.136-01 11 07.29         22.1 wLED075F51
         K13E41P _C2015 02 20.38019108 59 27.955-00 51 54.70         21.4 RtED075568
         K13E41P _C2015 02 20.38149308 59 27.867-00 51 53.18         21.1 RtED075568
         K13E41P _C2015 02 20.38282508 59 27.778-00 51 51.63         21.0 RtED075568
         K13E41P KC2015 02 24.18690508 55 28.67 +00 22 50.3          22.2 VuED075H21
         K13E41P KC2015 02 24.19885308 55 27.94 +00 23 04.5          22.0 VuED075H21
         K13E41P KC2015 02 24.21120708 55 27.17 +00 23 18.7          21.8 VuED075H21
    
    Observer details:
    568 Mauna Kea.  Observers R. J. Wainscoat, P. Forshay.  Measurers M. Micheli,
        R. J. Wainscoat.  3.6-m Canada-France-Hawaii Telescope + CCD.
    F51 Pan-STARRS 1, Haleakala.  Observers B. Gibson, T. Goggia, N. Primak,
        A. Schultz, M. Willman.  Measurers K. Chambers, S. Chastel, L. Denneau,
        H. Flewelling, M. Huber, E. Magnier, E. Schunova, R. Wainscoat, C. Waters,
        R. Weryk.  1.8-m Ritchey-Chretien + CCD.
    H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
        Measurers L. Buzzi, T. Linder, S. Foglia, T. Vorobjov.  1.3-m f/4.0
        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
    150219 F51 2.63- 1.33-    150224 H21 2.58- 1.31-    MPO256843   +6.8 day
    
    Orbital elements:
    2013 EP41                                                Earth MOID = 0.2743 AU
    Epoch 2014 Dec. 9.0 TT = JDT 2457000.5                  MPC
    M 119.64216              (2000.0)            P               Q
    n   0.44124689     Peri.  173.01189     +0.94043551     +0.32788528
    a   1.7087621      Node   166.74045     -0.32779565     +0.94461020
    e   0.2511165      Incl.   23.06158     -0.09017245     -0.01424115
    P   2.23           H   19.1           G   0.15           U   4
    Residuals in seconds of arc
    130308 F51  0.1-  0.1-    130313 291  0.2+  0.2+    150219 F51  0.1+  0.0
    130308 F51  0.1+  0.0     130313 291  0.0   1.0+    150220 568  0.1-  0.1-
    130308 F51  0.2-  0.1-    130317 291  0.1-  0.4-    150220 568  0.0   0.1-
    130309 204  0.4-  0.2-    130317 291  0.0   1.1-    150220 568  0.0   0.2-
    130310 204  0.1+  0.2+    130317 291  0.7-  0.6+    150224 H21  0.4-  0.2+
    130310 204  0.5+  0.4-    130317 291  0.1+  0.1-    150224 H21  0.2-  0.3+
    130313 H36  0.7+  0.3+    130317 291  0.1+  0.2+    150224 H21  0.2-  0.1-
    130313 H36  1.1+  0.2+    150219 F51  0.0   0.1-
    130313 H36 (0.9+  2.0+)   150219 F51  0.0   0.1+
    
    Ephemeris:
    2013 EP41                a,e,i = 1.71, 0.25, 23                  q = 1.2797
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2015 01 25    09 31 19.3 -08 09 43   1.1687  2.0727   148.5    14.4    21.8
    ...
    2015 02 09    09 13 01.7 -04 25 49   1.1373  2.0926   160.3     9.1    21.6
    ...
    2015 02 17    09 03 17.3 -01 57 35   1.1459  2.1017   160.0     9.2    21.6
    ...
    2015 02 23    08 56 40.9 -00 00 27   1.1643  2.1079   156.3    10.9    21.7
    2015 02 24    08 55 39.9 +00 19 13   1.1683  2.1089   155.5    11.2    21.8
    2015 02 25    08 54 40.6 +00 38 53   1.1726  2.1099   154.6    11.6    21.8
    ...
    2015 03 03    08 49 23.0 +02 35 35   1.2040  2.1153   148.9    14.0    21.9
    ...
    2015 03 11    08 44 13.2 +05 03 43   1.2592  2.1216   140.5    17.3    22.1
    ...
    2015 03 26    08 40 52.2 +09 01 37   1.3967  2.1307   124.9    22.6    22.5
    
    A. U. Tomatic                (C) Copyright 2015 MPC           M.P.E.C. 2015-D75
    

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