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  • MPEC 1998-U17 : 1998 UP1

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    M.P.E.C. 1998-U17                                Issued 1998 Oct. 21, 22:34 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 UP1
    
    Observations:
         J98U01P* C1998 10 18.09020 00 16 45.03 +28 10 59.3          18.4        704
         J98U01P  C1998 10 18.11015 00 16 32.18 +28 12 05.4          18.9        704
         J98U01P  C1998 10 18.13010 00 16 19.32 +28 13 10.7          18.6        704
         J98U01P  C1998 10 18.15031 00 16 06.22 +28 14 18.8          18.6        704
         J98U01P  C1998 10 18.17027 00 15 53.17 +28 15 23.3          18.8        704
         J98U01P  C1998 10 20.17010 23 56 52.57 +29 44 10.7                      658
         J98U01P  C1998 10 20.17330 23 56 50.88 +29 44 17.9                      658
         J98U01P  C1998 10 20.17853 23 56 48.09 +29 44 30.1                      658
         J98U01P  C1998 10 20.92149 23 50 36.00 +30 10 24.9          18.4 V      046
         J98U01P  C1998 10 20.92295 23 50 35.29 +30 10 27.7                      046
         J98U01P  C1998 10 20.92369 23 50 34.94 +30 10 29.0                      046
         J98U01P  C1998 10 20.92440 23 50 34.58 +30 10 30.8          18.5 V      046
         J98U01P  C1998 10 20.92512 23 50 34.14 +30 10 31.7                      046
         J98U01P  C1998 10 21.78521 23 44 00.10 +30 36 33.5                      557
         J98U01P  C1998 10 21.78650 23 43 59.55 +30 36 35.2                      557
         J98U01P  C1998 10 21.78907 23 43 58.41 +30 36 40.7                      557
    
    Observer details:
    046 Klet.  Observers M. Tichy, Z. Moravec.  Measurer M. Tichy.  0.57-m f/5.2
        reflector + CCD.
    557 Ondrejov.  Observer P. Pravec.  0.65-m f/3.6 reflector + CCD.
    658 Dominion Astrophysical Observatory.  Observer D. D. Balam.  1.82-m
        reflector + 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 UP1
    Epoch 1998 Oct. 14.0 TT = JDT 2451100.5                 Williams
    M  90.63327              (2000.0)            P               Q
    n   0.97641018     Peri.  235.27371     -0.32398552     +0.92945141
    a   1.0062700      Node    18.47526     -0.57752691     -0.04653524
    e   0.3489807      Incl.   33.84703     -0.74933040     -0.36599801
    P   1.01           H   20.5           G   0.15
    From 16 observations 1998 Oct. 18-21.
    
    Ephemeris:
    1998 UP1                 a,e,i = 1.01, 0.35, 34                  q = 0.6551
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    1998 10 14    01 08.63   +22 54.7    0.130    1.123   165.0    13.3    17.1
    1998 10 16    00 40.96   +25 56.4    0.144    1.133   160.1    17.4    17.5
    1998 10 18    00 17.67   +28 06.3    0.160    1.143   154.7    21.9    17.9
    1998 10 20    23 58.34   +29 38.0    0.178    1.153   149.7    25.8    18.2
    1998 10 22    23 42.43   +30 42.7    0.196    1.162   145.3    29.2    18.6
    1998 10 24    23 29.38   +31 28.6    0.216    1.171   141.4    32.0    18.9
    1998 10 26    23 18.69   +32 01.4    0.236    1.180   138.0    34.3    19.2
    1998 10 28    23 09.94   +32 25.0    0.257    1.189   134.9    36.3    19.4
    1998 10 30    23 02.79   +32 42.3    0.278    1.198   132.1    38.0    19.6
    1998 11 01    22 56.97   +32 55.2    0.300    1.206   129.6    39.3    19.9
    1998 11 03    22 52.26   +33 04.9    0.321    1.214   127.3    40.5    20.1
    1998 11 05    22 48.46   +33 12.4    0.343    1.222   125.2    41.6    20.2
    1998 11 07    22 45.46   +33 18.4    0.365    1.230   123.2    42.4    20.4
    1998 11 09    22 43.13   +33 23.4    0.387    1.237   121.3    43.2    20.6
    1998 11 11    22 41.38   +33 27.6    0.410    1.244   119.5    43.8    20.7
    1998 11 13    22 40.14   +33 31.5    0.432    1.251   117.9    44.4    20.9
    1998 11 15    22 39.34   +33 35.2    0.454    1.258   116.3    44.8    21.0
    1998 11 17    22 38.94   +33 38.9    0.477    1.265   114.7    45.3    21.1
    1998 11 19    22 38.90   +33 42.8    0.499    1.271   113.2    45.6    21.2
    1998 11 21    22 39.16   +33 46.9    0.521    1.277   111.8    45.9    21.4
    1998 11 23    22 39.71   +33 51.3    0.544    1.283   110.4    46.2    21.5
    1998 11 25    22 40.52   +33 56.1    0.566    1.289   109.1    46.4    21.6
    1998 11 27    22 41.56   +34 01.4    0.588    1.294   107.8    46.6    21.7
    1998 11 29    22 42.81   +34 07.1    0.610    1.299   106.6    46.7    21.8
    1998 12 01    22 44.26   +34 13.3    0.632    1.304   105.3    46.8    21.9
    1998 12 03    22 45.88   +34 20.0    0.654    1.309   104.1    46.9    21.9
    
    Gareth V. Williams           (C) Copyright 1998 MPC           M.P.E.C. 1998-U17
    

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