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IAU Minor Planet Center

Minor Planet Center

MPEC 2006-D34 : 2004 GD28

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M.P.E.C. 2006-D34                                Issued 2006 Feb. 23, 23:40 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
                  Supported in part by the TABASGO 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 GD28

                           Revision to MPEC 2004-H43

Additional Observations:
     K04G28D 2C2005 11 11.48590407 19 34.457-03 23 58.79         23.1 R ED034568
     K04G28D 2C2005 11 11.48978507 19 34.397-03 24 00.42         22.9 R ED034568
     K04G28D 2C2005 11 13.51542507 18 56.222-03 39 48.58         22.7 R ED034568
     K04G28D 2C2005 11 13.52298807 18 56.064-03 39 51.99         22.7 R ED034568

Observer details:
568 Mauna Kea.  Observers F. Bernardi, A. Boattini.  Measurer F. Bernardi.
    2.24-m University of Hawaii reflector + 2048 CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
051111 568  6.7+  1.8-    051113 568  7.1+  1.5-    MPO 74310   +0.00051 day

Orbital elements:
2004 GD28                                                Earth MOID = 0.4422 AU
Epoch 2006 Mar. 6.0 TT = JDT 2453800.5                  MPC
M 119.29652              (2000.0)            P               Q
n   0.22682357     Peri.   92.09609     +0.60737927     +0.74689612
a   2.6628330      Node   219.77063     -0.78524604     +0.61606071
e   0.5646486      Incl.   25.02640     +0.12032905     +0.25023067
P   4.35           H   17.3           G   0.15           U   2
Residuals in seconds of arc
040413 644  0.1+  0.0     040510 E14  0.3-  0.4-    040613 704  0.7+  0.4+
040413 644  0.0   0.2-    040511 699  0.1-  1.3+    040619 704  0.0   0.8-
040413 644  0.0   0.2-    040511 699  1.4+  1.1-    040619 704  1.3+  0.9+
040417 644  0.4+  0.1+    040511 699  0.7-  1.0+    040619 704  0.7+  0.5+
040417 644  0.1+  0.2+    040511 699  0.3-  0.4-    040619 704  0.3+  1.0+
040417 644  0.6-  0.0     040516 704  0.2+  0.2+    040727 474  0.2-  0.4-
040421 704  1.2-  0.0     040516 704  0.6+  0.2+    040727 474  0.3-  0.3+
040421 704  0.4-  0.8+    040516 704  1.0+  0.0     040727 474  0.2-  0.4+
040421 704  0.4+  0.2-    040516 704  0.5+  0.5-    040812 941  0.4-  0.1+
040421 704  0.7-  0.4+    040516 704  0.3+  0.4+    040812 941  0.4-  0.1-
040422 E14  2.4-  0.6-    040520 246  0.7+  0.1-    040812 941  0.2-  0.2-
040422 E14  0.0   0.1+    040520 246  0.7+  0.1-    040812 941  0.1+  0.3+
040422 E14  0.8+  0.6+    040520 246  0.9+  0.1+    041003 G90  0.8+  0.7+
040425 704  1.0+  0.3-    040520 246  0.5+  0.5-    041003 G90  0.5+  0.3+
040425 704  1.2+  1.0+    040524 704  0.4-  1.0+    041003 G90  0.4+  0.2+
040425 704  0.4+  0.1+    040524 704  0.3-  0.2+    041120 291  0.4-  0.1+
040425 704  0.3-  1.2+    040524 704  0.4-  0.8+    041120 291  1.1+  0.4-
040425 E14  0.7-  0.1-    040524 704  0.0   0.3-    041120 291  1.2-  0.1+
040425 E14  0.4-  0.5-    040524 704  0.4+  0.2-    041210 246  0.0   1.1+
040425 E14  0.9-  0.8+    040609 E12  0.6+  1.2-    041210 246  0.2-  0.3+
040509 703  1.0+  0.4+    040609 E12  0.2+  1.3-    041210 246  0.3+  1.4+
040509 703  1.1+  0.0     040609 E12  0.3-  0.2-    051111 568  0.2-  0.2-
040509 703  1.0-  0.1+    040609 E12  0.2-  1.2-    051111 568  0.0   0.0
040509 703  1.5-  0.4+    040613 704  1.0+  0.1+    051113 568  0.1+  0.1+
040510 E14  0.2-  0.1-    040613 704  0.2-  0.6+    051113 568  0.2+  0.2+
040510 E14  0.0   0.1+    040613 704  1.1+  0.2-

Ephemeris:
2004 GD28                a,e,i = 2.66, 0.56, 25                  q = 1.1593
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2006 02 24    06 09.68   -03 53.0    3.273    3.788   114.3    13.8    23.6
2006 03 06    06 09.41   -02 55.0    3.428    3.816   105.6    14.5    23.7
2006 03 16    06 10.96   -01 58.9    3.590    3.842    97.1    14.9    23.8

Kyle E. Smalley              (C) Copyright 2006 MPC           M.P.E.C. 2006-D34

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