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Minor Planet Center

MPEC 2004-V62 : 1998 UQ1

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M.P.E.C. 2004-V62                                Issued 2004 Nov. 13, 04:51 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

                                   1998 UQ1

                           Revision to MPEC 1998-U18

Additional Observations:
     J98U01Q 1C2004 11 09.73200 07 38 14.79 -47 56 26.7          20.2 R EV062413
     J98U01Q 1C2004 11 12.73819 07 39 12.62 -49 52 27.4          20.3 R EV062413
     J98U01Q 1C2004 11 12.74930 07 39 12.75 -49 52 52.6                 EV062413

Observer details:
413 Siding Spring.  Observer R. H. McNaught.  1.0-m f/8 reflector + CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
041109 413 0.49+ 0.16-    041112 413 0.49+ 0.14-    MPC 33571   -1.4 day

Orbital elements:
1998 UQ1
Epoch 2005 Jan. 30.0 TT = JDT 2453400.5                 MPC
M  30.72827              (2000.0)            P               Q
n   0.17223662     Peri.  183.05828     +0.72048815     -0.33011279
a   3.1992810      Node   222.51723     +0.65385945     +0.61634143
e   0.5190576      Incl.   64.47569     +0.23100788     -0.71494670
P   5.72           H   16.6           G   0.15           U   1
Residuals in seconds of arc
981019 704  1.2+  1.1-    981021 557  0.2-  0.2-    981105 118  0.4-  0.4-
981019 704  1.6+  1.1+    981021 557  0.3-  0.1-    981105 118  0.2-  0.4-
981019 704 (2.2+  0.7+)   981021 557  0.5-  0.3+    981108 426  0.1+  0.2-
981019 704  1.6-  1.0+    981021 620  0.1-  0.1+    981108 426  0.3-  0.1+
981020 557  0.1+  0.4-    981021 620  0.3-  0.2+    981108 360  0.2+  0.5+
981020 557  0.2+  0.0     981021 620  0.2-  0.2+    981108 426  0.5+  0.0
981020 557  0.2+  0.1+    981022 151  1.0+  1.7+    981108 360  0.2+  0.6+
981020 046  0.2+  0.3+    981022 151  1.1-  0.6+    981108 360  0.1-  0.5+
981020 046  0.3+  0.3+    981023 118  0.3-  0.3-    981108 118  1.0-  0.2+
981020 046  0.1+  0.2-    981023 118  0.3-  0.4+    981108 118  0.5-  0.1-
981020 046  0.1-  0.1-    981023 118  0.1-  0.2-    981110 704  0.8+  0.1-
981020 673  0.5+  0.8-    981023 046  0.2-  0.2-    981110 704  0.9+  0.2+
981020 673  0.8+  1.4-    981023 046  0.1-  0.1-    981110 704  0.5+  0.1+
981020 658  0.2+  0.2-    981023 046  0.1-  0.1-    981110 704  0.1+  1.1+
981020 658  0.2+  0.0     981023 046  0.5-  0.2-    981110 704  0.3-  1.8+
981020 658  0.3+  0.0     981024 540  0.9+  0.3-    981111 704  1.1+  1.8-
981020 422  0.1-  0.1-    981024 540  0.8-  1.7-    981111 704  0.6+  0.8+
981020 422  1.4-  0.3-    981024 540  1.3-  1.1-    981111 704  0.1-  1.0+
981020 104  0.4-  1.5+    981025 900  0.3-  0.2-    981111 704  0.1+  1.0+
981020 104  0.2-  1.3+    981025 900  0.2-  0.5-    981111 704  0.3-  1.2+
981020 104  0.1-  1.2+    981025 402  0.1+  0.6-    981116 118  1.1-  0.0
981020 104  1.8+  1.0-    981025 402  0.1+  0.4-    981116 118  0.8-  0.2+
981020 106  0.4-  0.6-    981025 402  0.2+  0.3-    981124 118  1.4-  0.1+
981020 106  0.2+  0.3-    981025 143 (1.1+  2.0+)   981124 118  1.9-  0.1+
981020 106  0.3+  1.0-    981025 143  0.3+  1.7-    981125 426  0.4-  0.1-
981020 587  1.0+  0.2+    981025 143  0.1+  0.4+    981125 426  0.6-  0.6-
981020 587  0.6+  0.2+    981028 587  0.2+  0.1+    981125 426  0.4-  0.4+
981020 557  0.6+  0.4+    981028 587  0.3+  0.0     981126 402  0.2-  0.5+
981020 557  0.5+  0.1+    981030 658  0.7-  0.2-    981126 402  0.3+  0.3-
981020 557  0.5+  0.1+    981030 658  0.6-  0.6-    981126 402  0.1+  0.2-
981020 118  0.5+  0.7+    981030 658  0.7-  0.4-    981208 426  0.5+  1.1-
981020 118  0.6+  0.5+    981031 402  0.2+  0.3-    981208 426  0.8+  0.5-
981020 118  0.6+  0.3+    981031 402  0.0   0.1-    981211 422  0.6-  0.0
981021 046  1.1+  0.9+    981031 402  0.2+  0.3-    981211 422  0.3-  0.0
981021 046  0.3+  0.9+    981102 860  0.0   0.8-    041109 413  0.1+  0.7+
981021 046  0.2+  0.9+    981102 860  0.4-  1.6-    041112 413  0.3+  1.0+
981021 046  0.1+  0.6+    981102 860  1.4-  1.7-    041112 413  0.3+  1.0+
981021 673 (1.3-  3.4-)   981105 151  0.2+  0.1-
981021 673 (0.8-  3.7-)   981105 151  0.4+  0.2-

Ephemeris:
1998 UQ1                 a,e,i = 3.20, 0.52, 64                  q = 1.5387
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2004 11 11    07 38.70   -48 45.9    1.508    1.811    90.4    33.1    20.2
2004 11 21    07 39.57   -54 44.4    1.568    1.860    90.5    32.1    20.3
2004 12 01    07 34.94   -59 41.8    1.636    1.912    90.1    31.0    20.4
2004 12 11    07 24.11   -63 34.3    1.706    1.966    89.7    30.1    20.5
2004 12 21    07 07.32   -66 18.4    1.778    2.021    89.3    29.1    20.7
2004 12 31    06 46.53   -67 53.5    1.846    2.077    89.0    28.3    20.8
2005 01 10    06 25.26   -68 23.1    1.912    2.134    89.0    27.4    20.9
2005 01 20    06 07.39   -67 55.5    1.973    2.192    89.2    26.7    21.0
2005 01 30    05 55.47   -66 43.4    2.030    2.250    89.6    26.0    21.1
2005 02 09    05 50.19   -64 58.5    2.083    2.308    90.2    25.3    21.2
2005 02 19    05 51.08   -62 50.9    2.134    2.366    90.9    24.7    21.3
2005 03 01    05 57.09   -60 28.4    2.184    2.425    91.7    24.1    21.3
2005 03 11    06 07.13   -57 56.4    2.235    2.483    92.4    23.6    21.4
2005 03 21    06 20.28   -55 19.3    2.289    2.541    92.8    23.1    21.5
2005 03 31    06 35.72   -52 40.9    2.348    2.598    92.9    22.6    21.6
2005 04 10    06 52.82   -50 04.5    2.414    2.655    92.6    22.1    21.7
2005 04 20    07 11.07   -47 33.1    2.488    2.712    91.8    21.7    21.8
2005 04 30    07 30.05   -45 09.8    2.572    2.768    90.4    21.3    21.9
2005 05 10    07 49.43   -42 56.9    2.665    2.823    88.4    20.9    22.0

Gareth V. Williams           (C) Copyright 2004 MPC           M.P.E.C. 2004-V62

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