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IAU Minor Planet Center

Minor Planet Center

MPEC 2005-A39 : 2003 AD23

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M.P.E.C. 2005-A39                                Issued 2005 Jan. 13, 19:51 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

                                   2003 AD23

                           Revision to MPEC 2003-A59

Additional Observations:
     K03A23D  C2005 01 13.14153 01 32 36.58 +03 29 45.7          17.7 R EA039703
     K03A23D  C2005 01 13.15050 01 32 43.14 +03 31 11.6          18.0 R EA039703
     K03A23D  C2005 01 13.15946 01 32 49.74 +03 32 38.8          18.1 R EA039703
     K03A23D  C2005 01 13.16843 01 32 56.32 +03 34 05.0          17.9 R EA039703
     K03A23D  C2005 01 13.23304 01 33 43.79 +03 44 26.1          17.8 R EA039651
     K03A23D  C2005 01 13.23611 01 33 46.11 +03 44 55.9          17.9 R EA039651
     K03A23D  C2005 01 13.23912 01 33 48.28 +03 45 24.8          17.8 R EA039651
     K03A23D  C2005 01 13.80595 01 40 42.86 +05 14 05.5                 EA039J95
     K03A23D  C2005 01 13.81106 01 40 46.41 +05 14 52.4                 EA039J95
     K03A23D  C2005 01 13.81653 01 40 50.27 +05 15 42.7          18.8 R EA039J95

Observer details:
651 Grasslands Observatory, Tucson.  Observer J. E. McGaha.  0.62-m f/5.1
    Newtonian reflector + CCD.
703 Catalina Sky Survey.  Observer R. Hill.  Measurers E. C. Beshore,
    C. M. Casey, E. J. Christensen, G. J. Garradd, R. E. Hill, S. M. Larson,
    R. H. McNaught.  0.68-m Schmidt + CCD.
J95 Great Shefford.  Observer P. Birtwhistle.  0.30-m f/6.3 Schmidt-Cassegrain
    + CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
050113 703 1.66- 1.20-    050113 J95 1.64- 1.19-    MPO 41910   +0.52 day

Orbital elements:
2003 AD23
Epoch 2005 Jan. 30.0 TT = JDT 2453400.5                 MPC
M  29.93954              (2000.0)            P               Q
n   0.46705116     Peri.  241.35778     +0.88653860     +0.25099252
a   1.6452292      Node   101.81040     -0.14060342     +0.94648377
e   0.7628262      Incl.   23.39450     -0.44077204     +0.20290693
P   2.11           H   18.9           G   0.15           U   5
Residuals in seconds of arc
030107 704  0.1-  0.2-    030108 557  1.2+  0.7+    030113 649  0.2-  0.2+
030107 704  0.3+  0.2-    030108 557  0.1+  0.3+    030113 649  0.4+  0.1+
030107 704  0.8+  0.9-    030108 557  0.1-  0.6+    030125 734  1.5+  0.2-
030107 704  0.0   1.2-    030108 557  0.3+  0.3+    030125 734  1.7-  1.6+
030108 J95  0.3-  0.5+    030111 649  0.2-  0.1+    030125 587  0.1-  0.8-
030108 J95  0.8-  0.1+    030111 649  0.0   0.2-    030125 587  0.2+  0.2-
030108 704  0.1+  0.3-    030111 649  0.3-  0.0     050113 703  0.3-  0.5-
030108 704  0.1-  0.8-    030111 649  0.0   0.2-    050113 703  0.7-  1.0-
030108 704  0.5-  0.1-    030112 246  0.5+  0.3+    050113 703  0.3-  0.1-
030108 704  0.3+  0.5-    030112 246  0.1-  0.6+    050113 703  0.4-  0.3-
030108 557  0.6+  0.3-    030112 246  1.0+  0.1-    050113 651  0.0   0.2+
030108 557  0.5-  0.1-    030112 246  0.1+  0.1-    050113 651  1.0+  0.6+
030108 557  0.1+  1.0-    030112 704  0.4-  0.2+    050113 651  0.3+  0.7+
030108 557  0.4+  0.4-    030112 704  1.0-  0.3-    050113 J95  0.8+  0.2+
030108 557  1.5+  0.5+    030112 704  0.9+  0.1+    050113 J95  0.3-  0.0
030108 557  0.3-  0.2-    030112 704  0.1+  0.3-    050113 J95  0.5-  0.1-

Ephemeris:
2003 AD23                a,e,i = 1.65, 0.76, 23                  q = 0.3902
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2005 01 10    00 50.33   -05 39.6    0.237    0.970    79.7    86.4    18.7
2005 01 20    02 42.72   +17 37.3    0.333    1.111   103.7    59.3    18.9
2005 01 30    03 46.09   +27 18.4    0.493    1.244   110.1    48.0    19.6
2005 02 09    04 26.38   +31 28.1    0.675    1.368   109.3    42.9    20.4
2005 02 19    04 56.33   +33 30.2    0.869    1.484   105.9    39.8    21.0
2005 03 01    05 21.21   +34 33.2    1.070    1.593   101.2    37.6    21.6
2005 03 11    05 43.39   +35 03.9    1.275    1.695    96.0    35.6    22.0

Timothy B. Spahr             (C) Copyright 2005 MPC           M.P.E.C. 2005-A39

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