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IAU Minor Planet Center

Minor Planet Center

MPEC 2005-B11 : 2003 UD8

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M.P.E.C. 2005-B11                                Issued 2005 Jan. 17, 13:56 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 UD8

                           Revision to MPEC 2003-U23

Additional Observations:
     K03U08D HC2005 01 15.32847 09 31 00.85 +09 23 32.3          22.5 V EB011291
     K03U08D HC2005 01 15.33296 09 31 00.63 +09 23 33.5          22.7 V EB011291
     K03U08D HC2005 01 15.33746 09 31 00.45 +09 23 34.5          22.5 V EB011291
     K03U08D HC2005 01 17.32979 09 29 24.40 +09 29 46.3          22.3 V EB011291
     K03U08D HC2005 01 17.33542 09 29 24.03 +09 29 48.7          23   V EB011291
     K03U08D HC2005 01 17.34057 09 29 23.93 +09 29 48.5          21.6 V EB011291

Observer details:
291 LPL/Spacewatch II.  Observers M. Block, A. F. Tubbiolo.  1.8-m f/2.7
    reflector + CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
050115 291 19.2+  7.6-    050117 291 20.6+  6.6-    MPO 62449   +0.00024 day

Orbital elements:
2003 UD8
Epoch 2005 Jan. 30.0 TT = JDT 2453400.5                 MPC
M 103.50009              (2000.0)            P               Q
n   0.21934738     Peri.  107.76736     +0.97182760     +0.22845523
a   2.7230006      Node   239.06170     -0.23362528     +0.90122066
e   0.5325820      Incl.    3.87466     -0.03115032     +0.36825199
P   4.49           H   16.8           G   0.15           U   2
Residuals in seconds of arc
030725 704  0.7+  0.4+    031020 448  0.2-  0.4-    031030 E14  0.2+  0.2-
030725 704  0.4-  0.7+    031020 704  0.0   1.2-    031107 448  0.3+  0.3+
030725 704  0.4+  0.2+    031020 704  0.1-  0.0     031107 448  0.3+  0.3-
030725 704  0.4+  2.2-    031020 704  0.3-  0.6-    031107 448  0.7+  0.6-
031018 704  1.2-  0.7+    031020 704  0.1-  0.1+    031123 703  1.3+  0.7+
031018 704  0.6-  0.6+    031020 704  0.7-  0.2+    031123 703  0.9+  0.2+
031018 704  0.2+  0.1+    031020 704  0.1+  0.1+    031123 703  0.4+  0.5-
031018 704  0.5-  0.1+    031020 673  0.4-  0.4-    031123 703  0.8+  1.1-
031018 704  0.3+  0.2+    031020 673  0.1+  0.2-    031205 703  0.4+  0.0
031019 704  0.7-  0.3+    031020 673  0.2-  0.1-    031205 703  0.1+  0.9-
031019 704  0.1+  0.9+    031020 673  0.0   0.3-    031205 703  0.1-  0.2-
031019 673  0.0   0.2+    031020 704  0.1-  0.0     031205 703  0.1+  0.7+
031019 673  0.7-  0.2+    031020 704  0.1+  0.1-    031213 704  0.6+  0.1+
031019 704  0.8-  0.2+    031020 926  0.3+  0.1+    031213 704  0.6-  0.3-
031019 673  0.3-  0.1+    031020 926  0.1+  0.1-    031213 704  0.6+  0.6+
031019 673  0.9-  0.1+    031020 926  0.0   0.1-    031213 704  0.7+  0.1+
031019 704  0.2-  0.5+    031020 854  0.5-  0.3-    031217 699  0.4-  0.8-
031019 704  0.3-  0.0     031020 854  0.2+  0.5-    031217 699  0.4-  0.2+
031019 704  0.1-  0.8+    031020 854  0.2-  0.1+    031217 699  0.3-  0.6-
031019 704  0.2+  0.4+    031020 474  0.0   0.6-    031217 699  0.4+  0.2+
031019 704  0.6+  1.1+    031020 474  0.0   1.0-    031221 704  0.1+  0.0
031019 704  0.4-  0.0     031020 474  1.3+  0.2-    031221 704  0.4-  0.1-
031019 926  1.0+  0.5-    031020 428  0.6+  0.2-    031221 704  0.0   0.1+
031019 926  0.6-  1.0+    031020 428  0.2-  0.0     031221 704  0.1-  0.2-
031019 926  0.2+  0.3+    031020 428  1.0+  0.2+    031221 704  0.1-  0.0
031019 704  0.4-  1.8+    031021 704  1.2-  0.2+    031222 704  0.4-  0.4+
031019 H36  1.4+  0.5+    031021 704  0.9-  0.0     031222 704  0.5-  0.6-
031019 H36  1.1-  0.2+    031021 704  0.1-  0.0     031222 704  0.3+  0.4-
031019 448  0.0   0.1-    031021 704  0.4-  0.2+    031222 704  0.5-  0.8+
031019 448  0.1-  0.1-    031021 704  0.7-  1.2+    031222 704  1.5+  1.7+
031019 448  0.4+  0.3-    031022 926  0.2+  0.2-    040213 291  0.5-  0.4-
031019 246  0.6-  0.4-    031022 926  0.0   0.2+    040213 291  1.3-  0.1-
031019 246  0.8-  0.4+    031022 926  0.4+  0.2+    040213 291  1.7-  0.5+
031019 246  0.5-  0.3-    031028 246  0.4-  0.2+    050115 291  0.2-  1.1-
031019 246  1.1-  0.4-    031028 246  0.2+  0.0     050115 291  0.3-  0.7-
031019 246  0.1+  0.9-    031028 246  0.6-  0.3+    050115 291  0.3+  0.5-
031019 246  0.2+  0.5-    031028 246  0.0   0.1+    050117 291  0.1+  0.3-
031020 H36  0.7+  0.9-    031028 246  0.3-  0.3+    050117 291  1.2-  1.1+
031020 448  0.4-  0.3-    031029 428  0.4+  1.0+    050117 291  1.1+  0.1-
031020 H36  0.0   0.6-    031030 E14  0.3+  0.3+
031020 448  0.1+  0.4-    031030 E14  0.1-  0.3-

Ephemeris:
2003 UD8                 a,e,i = 2.72, 0.53, 4                   q = 1.2728
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2005 01 10    09 35.03   +09 08.8    2.679    3.541   146.4     8.8    22.3
2005 01 20    09 27.19   +09 38.6    2.642    3.575   158.3     5.8    22.1
2005 01 30    09 18.36   +10 15.6    2.635    3.609   169.9     2.7    22.0
2005 02 09    09 09.25   +10 56.5    2.659    3.642   173.5     1.7    21.9
2005 02 19    09 00.60   +11 37.7    2.716    3.673   163.0     4.5    22.2
2005 03 01    08 53.08   +12 16.2    2.803    3.704   151.4     7.4    22.4
2005 03 11    08 47.17   +12 49.5    2.917    3.733   140.0     9.8    22.6

Timothy B. Spahr             (C) Copyright 2005 MPC           M.P.E.C. 2005-B11

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