• MPC Preparation (Info)

  • MPEC 1998-U09 : 1998 UR

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    M.P.E.C. 1998-U09                                Issued 1998 Oct. 19, 16:39 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.
    
                 BMARSDEN@CFA.HARVARD.EDU or GWILLIAMS@CFA.HARVARD.EDU
                       URL http://cfa-www.harvard.edu/iau/mpc.html
    
                                        1998 UR
    
    Observations:
         J98U00R* C1998 10 16.30053 02 01 21.23 -04 34 48.3          19.1        704
         J98U00R  C1998 10 16.32051 02 01 15.58 -04 31 12.2          18.9        704
         J98U00R  C1998 10 16.36058 02 01 04.17 -04 23 57.4          19.7        704
         J98U00R  C1998 10 16.38090 02 00 58.37 -04 20 17.5          19.7        704
         J98U00R  C1998 10 17.01041 01 58 20.49 -02 28 10.5          18.6 V      046
         J98U00R  C1998 10 17.01104 01 58 20.24 -02 28 03.6                      046
         J98U00R  C1998 10 17.01164 01 58 20.12 -02 27 56.9                      046
         J98U00R  C1998 10 17.59441 01 55 57.72 -00 45 06.4          19.1 R      422
         J98U00R  C1998 10 17.59544 01 55 57.37 -00 44 55.6          19.4 R      422
         J98U00R  C1998 10 17.59787 01 55 56.76 -00 44 30.8          19.5 R      422
         J98U00R  C1998 10 17.60005 01 55 56.16 -00 44 08.7          19.0 R      422
         J98U00R  C1998 10 17.62637 01 55 49.06 -00 39 37.6          19.3 R      422
         J98U00R  C1998 10 17.63160 01 55 47.70 -00 38 43.8                      422
         J98U00R  C1998 10 18.49503 01 52 26.47 +01 45 47.8          18.9 R      422
         J98U00R  C1998 10 18.49753 01 52 25.79 +01 46 13.0          18.9 R      422
         J98U00R  C1998 10 18.49834 01 52 25.56 +01 46 20.3          18.7 R      422
         J98U00R  C1998 10 18.49997 01 52 25.14 +01 46 36.0          18.8 R      422
         J98U00R  C1998 10 19.60204 01 48 14.34 +04 41 37.5          18.6 R      426
         J98U00R  C1998 10 19.60971 01 48 12.50 +04 42 47.9          19.0 R      426
         J98U00R  C1998 10 19.61373 01 48 11.56 +04 43 25.4          18.9 R      426
    
    Observer details:
    046 Klet.  Observers J. Ticha, M. Tichy.  Measurer M. Tichy. 0.57-m f/5.2
        reflector + CCD.
    422 Loomberah.  Observer G. J. Garradd.  0.45-m f/5.4 reflector + CCD.
    426 Woomera.  Observer F. B. Zoltowski.  0.30-m f/3.3 Schmidt-Cassegrain + CCD.
    704 Lincoln Laboratory ETS, New Mexico.  Observers M. Blythe, F. Shelly,
        M. Bezpalko.  Measurers J. Stuart, H. Viggh, R. Sayer.  1.0-m f/2.15
        reflector + CCD.
    
    Orbital elements:
    1998 UR
    Epoch 1998 Oct. 14.0 TT = JDT 2451100.5                 Williams
    M  17.80889              (2000.0)            P               Q
    n   0.46780500     Peri.  311.90091     +0.92456481     +0.35413543
    a   1.6434613      Node    28.23087     -0.19662137     +0.75951118
    e   0.3765148      Incl.   17.29148     -0.32637394     +0.54564720
    P   2.11           H   23.0           G   0.15
    From 20 observations 1998 Oct. 16-19.
    
    Ephemeris:
    1998 UR                  a,e,i = 1.64, 0.38, 17                  q = 1.0247
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    1998 10 14    02 11.72   -11 47.9    0.108    1.097   155.8    21.9    19.4
    1998 10 19    01 50.48   +03 06.6    0.120    1.115   172.2     7.0    19.2
    1998 10 24    01 33.84   +14 30.6    0.141    1.135   174.5     4.8    19.4
    1998 10 29    01 21.37   +22 31.0    0.169    1.157   164.8    13.0    20.2
    1998 11 03    01 12.55   +27 59.8    0.200    1.180   157.4    18.8    20.8
    1998 11 08    01 06.84   +31 45.2    0.235    1.203   151.7    23.0    21.4
    1998 11 13    01 03.76   +34 20.8    0.273    1.228   147.1    26.0    21.8
    1998 11 18    01 02.95   +36 09.5    0.313    1.253   143.1    28.3    22.2
    1998 11 23    01 04.11   +37 26.1    0.356    1.279   139.6    30.0    22.6
    
    Gareth V. Williams           (C) Copyright 1998 MPC           M.P.E.C. 1998-U09
    

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