• MPC Preparation (Info)

    • MPEC 2005-S56 : 2004 PT107

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    M.P.E.C. 2005-S56                                Issued 2005 Sept. 26, 20:51 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
             Prepared using the Tamkin Foundation Computer Network

                              MPC@CFA.HARVARD.EDU
          URL http://cfa-www.harvard.edu/iau/mpc.html  ISSN 1523-6714

                                  2004 PT107

                           Revision to MPEC 2004-R15

Additional Observations:
     K04PA7T  C2005 06 09.25287 21 23 53.87 -17 34 11.3          21.2 R ES056304
     K04PA7T  C2005 06 09.28494 21 23 53.77 -17 34 11.3                 ES056304
     K04PA7T  C2005 09 24.22388 21 15 48.44 -17 59 00.8                 ES056695
     K04PA7T  C2005 09 24.27934 21 15 48.23 -17 59 01.2                 ES056695
     K04PA7T  C2005 09 26.32631 21 15 41.03 -17 59 13.7                 ES056695

Observer details:
304 Las Campanas Observatory.  Observers J. Elliot, J. Kane, C. Thomas.
    Measurer S. D. Kern.  6.5-m reflector + CCD.
695 Kitt Peak.  Observers J. W. Parker, A. Bieryla.  3.5-m reflector + CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc and reference
050609 304 22.5+  8.6+    050926 695 20.9+  8.8+    MPO 74321

Orbital elements:
2004 PT107
Epoch 2005 Aug. 18.0 TT = JDT 2453600.5                 MPC
M 340.31526              (2000.0)            P               Q
n   0.00382523     Peri.   17.37548     +0.90984292     +0.30811015
a  40.4915761      Node   320.92427     -0.41341308     +0.61541807
e   0.0555216      Incl.   26.16396     -0.03571398     +0.72548518
P 258              H    5.6           G   0.15           U   5
Residuals in seconds of arc
040813 807  0.0   0.1+    040911 304  0.1+  0.1-    050609 304  0.2-  0.2+
040813 807  0.1-  0.1+    041010 695  0.1-  0.1-    050924 695  0.1+  0.0
040814 807  0.0   0.1+    041010 695  0.1-  0.0     050924 695  0.0   0.0
040911 304  0.2+  0.1-    050609 304  0.1+  0.0     050926 695  0.0   0.1-

Ephemeris:
2004 PT107               a,e,i = 40.49, 0.06, 26                 q = 38.243
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2005 09 17    21 16.27   -17 58.1   37.594   38.388   141.8     0.9    21.5
2005 09 27    21 15.65   -17 59.3   37.711   38.388   131.9     1.1    21.6
2005 10 07    21 15.15   -17 59.8   37.849   38.387   121.9     1.3    21.6
2005 10 17    21 14.82   -17 59.7   38.003   38.387   112.0     1.4    21.6
2005 10 27    21 14.65   -17 58.7   38.167   38.386   102.0     1.5    21.6
2005 11 06    21 14.66   -17 57.0   38.338   38.386    92.0     1.5    21.6
2005 11 16    21 14.84   -17 54.4   38.510   38.385    82.0     1.5    21.6
2005 11 26    21 15.21   -17 51.1   38.678   38.385    72.0     1.4    21.6
2005 12 06    21 15.74   -17 47.1   38.836   38.384    62.0     1.3    21.6
2005 12 16    21 16.42   -17 42.4   38.981   38.384    52.1     1.2    21.6
2005 12 26    21 17.24   -17 37.2   39.107   38.383    42.1     1.0    21.6
2006 01 05    21 18.18   -17 31.5   39.211   38.382    32.2     0.8    21.6

Brian G. Marsden             (C) Copyright 2005 MPC           M.P.E.C. 2005-S56

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