MPEC 2000-L62: 1999 OD4

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M.P.E.C. 2000-L62                                Issued 2000 June 15, 20:21 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.

             Prepared using the Tamkin Foundation Computer Network

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

                                   1999 OD4

                           Revision to MPEC 1999-T23

Observations:
     J99O04D 3C2000 06 07.52960 20 33 01.44 -17 49 38.0                      568
     J99O04D 3C2000 06 07.56054 20 33 01.36 -17 49 38.3                      568
     J99O04D 3C2000 06 08.56817 20 32 58.47 -17 49 44.7                      568

Observer details:
568 Mauna Kea.  Observers C. Veillet, A. Doressoundiram. Measurer C. Veillet.
    Canada-France-Hawaii 3.6-m reflector + CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees) and reference
000607 568 0.06- 0.01-    000608 568 0.06- 0.01-    MPC 36548

Orbital elements:
1999 OD4
Eccentricity assumed
Epoch 2000 Sept. 13.0 TT = JDT 2451800.5                Marsden
M 192.89445              (2000.0)            P               Q
n   0.00371932     Peri.  172.98211     -0.41798207     -0.88328149
a  41.2566261      Node   301.51819     +0.82091556     -0.26711153
e   0.0784544      Incl.   14.42618     +0.38908691     -0.38531188
P 265              H    7.3           G   0.15
Residuals in seconds of arc
990719 568  0.1+  0.5+    990806 807  0.0   0.2-    990807 807  0.2-  0.0
990719 568  0.1-  0.4+    990806 807  0.2-  0.4-    000607 568  0.1-  0.1+
990719 568  0.2-  0.2+    990806 807  0.0   0.0     000607 568  0.1+  0.0
990806 807  0.1+  0.3-    990807 807  0.0   0.4-    000608 568  0.0   0.0
990806 807  0.1+  0.4+    990807 807  0.3+  0.0
990806 807  0.2+  0.1+    990807 807  0.0   0.4-

Ephemeris:
1999 OD4                 a,e,i = 41.26, 0.08, 14                 q = 38.020
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2000 06 15    20 32.64   -17 50.5   43.665   44.427   138.2     0.9    23.9
2000 06 25    20 32.04   -17 52.1   43.562   44.426   147.8     0.7    23.9
2000 07 05    20 31.35   -17 53.9   43.485   44.426   157.5     0.5    23.8
2000 07 15    20 30.61   -17 56.0   43.434   44.426   167.2     0.3    23.8
2000 07 25    20 29.82   -17 58.3   43.411   44.425   176.9     0.1    23.8
2000 08 04    20 29.03   -18 00.6   43.417   44.425   173.2     0.2    23.8
2000 08 14    20 28.26   -18 02.9   43.453   44.424   163.4     0.4    23.8
2000 08 24    20 27.54   -18 05.0   43.516   44.424   153.6     0.6    23.8
2000 09 03    20 26.89   -18 06.9   43.605   44.424   143.8     0.8    23.9
2000 09 13    20 26.33   -18 08.5   43.718   44.423   134.0     0.9    23.9
2000 09 23    20 25.89   -18 09.7   43.852   44.423   124.1     1.1    23.9
2000 10 03    20 25.58   -18 10.5   44.002   44.422   114.2     1.2    23.9
2000 10 13    20 25.42   -18 10.8   44.165   44.422   104.3     1.2    23.9
2000 10 23    20 25.40   -18 10.6   44.334   44.421    94.4     1.3    24.0
2000 11 02    20 25.55   -18 09.9   44.506   44.421    84.4     1.3    24.0
2000 11 12    20 25.85   -18 08.6   44.675   44.421    74.5     1.2    24.0
2000 11 22    20 26.30   -18 06.8   44.836   44.420    64.5     1.2    24.0
2000 12 02    20 26.89   -18 04.5   44.984   44.420    54.5     1.0    24.0
2000 12 12    20 27.60   -18 01.7   45.115   44.419    44.6     0.9    24.0
2000 12 22    20 28.42   -17 58.5   45.225   44.419    34.6     0.7    23.9

Brian G. Marsden             (C) Copyright 2000 MPC           M.P.E.C. 2000-L62

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