• Preparing MPCs (Info)

  • MPEC 1999-H17 : 1999 HF1

    The following Minor Planet Electronic Circular may be linked-to from your own Web pages, but must not otherwise be redistributed electronically.

    A form allowing access to any MPEC is at the bottom of this page.


    Read MPEC 1999-H16 Read MPEC 1999-H18


    M.P.E.C. 1999-H17                                Issued 1999 Apr. 21, 22:58 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  ISSN 1523-6714
    
                                       1999 HF1
    
    Observations:
         J99H01F* C1999 04 20.15030 08 59 35.44 +67 27 01.4          15.4 R      699
         J99H01F  C1999 04 20.16556 08 59 44.02 +67 26 35.8                      699
         J99H01F  C1999 04 20.18082 08 59 52.51 +67 26 09.9                      699
         J99H01F  C1999 04 20.82813 09 05 57.95 +67 07 51.1          15.0 R      046
         J99H01F  C1999 04 20.83086 09 05 59.40 +67 07 46.4                      046
         J99H01F  C1999 04 20.83209 09 06 00.08 +67 07 44.2                      046
         J99H01F  C1999 04 20.83318 09 06 00.66 +67 07 42.3                      046
         J99H01F  C1999 04 21.02698 09 07 47.61 +67 02 17.7          15.0 R      758
         J99H01F  C1999 04 21.03101 09 07 49.72 +67 02 10.8          14.9 R      758
         J99H01F  C1999 04 21.03455 09 07 51.59 +67 02 04.6          15.0 R      758
         J99H01F  C1999 04 21.03726 09 07 52.97 +67 02 00.1          14.9 R      758
         J99H01F  C1999 04 21.03808 09 07 51.33 +67 01 36.4                      557
         J99H01F  C1999 04 21.03903 09 07 51.86 +67 01 34.7                      557
         J99H01F  C1999 04 21.03997 09 07 52.37 +67 01 33.1                      557
         J99H01F  C1999 04 21.04090 09 07 52.89 +67 01 31.3          15.1 V      557
         J99H01F  C1999 04 21.04540 09 07 57.26 +67 01 45.8          14.9 R      758
         J99H01F  C1999 04 21.05006 09 07 59.71 +67 01 37.9          14.8 R      758
         J99H01F  C1999 04 21.10119 09 08 27.50 +67 00 08.6                      711
         J99H01F  C1999 04 21.10408 09 08 29.00 +67 00 03.6                      711
         J99H01F  C1999 04 21.10690 09 08 30.46 +66 59 58.8                      711
         J99H01F  C1999 04 21.18042 09 09 09.96 +66 57 46.0                      658
         J99H01F  C1999 04 21.18247 09 09 11.04 +66 57 42.9                      658
         J99H01F  C1999 04 21.18737 09 09 13.56 +66 57 34.3                      658
         J99H01F  C1999 04 21.81189 09 14 41.37 +66 39 23.6          14.7 R      151
         J99H01F  C1999 04 21.81593 09 14 43.44 +66 39 16.3          14.5 R      151
         J99H01F  C1999 04 21.81900 09 14 44.94 +66 39 11.1          14.8 R      151
         J99H01F  C1999 04 21.82073 09 14 45.79 +66 39 07.9          14.9 R      151
         J99H01F  C1999 04 21.82426 09 14 47.54 +66 39 01.6          14.9 R      151
         J99H01F  C1999 04 21.82754 09 14 49.20 +66 38 55.5          14.9 R      151
    
    Observer details:
    046 Klet.  Observers M. Tichy, Z. Moravec.  Measurer M. Tichy.
        0.57-m f/5.2 reflector + CCD.
    151 Eschenberg Observatory, Winterthur.  Observer M. Griesser.  0.25-m f/8.0
        reflector + CCD.
    557 Ondrejov.  Observer L. Sarounova.  0.65-m f/3.6 reflector + CCD.
    658 Dominion Astrophysical Observatory.  Observer D. D. Balam.  1.82-m
        reflector + CCD.
    699 Lowell Observatory-LONEOS.  Observer S. M. Hermann.  Measurer
        B. W. Koehn.  0.59-m LONEOS Schmidt + CCD.
    711 McDonald Observatory.  Observers J. G. Ries, J. Africano.  0.76-m
        reflector + CCD.
    758 BCC Observatory, Cocoa.  Observer I. P. Griffin.  0.30-m f/5 Maksutov
        + CCD.
    
    Orbital elements:
    1999 HF1
    Epoch 1999 Apr. 12.0 TT = JDT 2451280.5                 Marsden
    M  97.70078              (2000.0)            P               Q
    n   1.33633832     Peri.  252.44627     +0.61676015     -0.76798032
    a   0.8163162      Node   156.66923     +0.77863348     +0.62740986
    e   0.4648662      Incl.   25.84765     -0.11548516     +0.12869768
    P   0.74           H   14.5           G   0.15
    From 29 observations 1999 Apr. 20-21.
    
    Ephemeris:
    1999 HF1                 a,e,i = 0.82, 0.46, 26                  q = 0.4368
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    1999 04 12    07 13.51   +69 57.2    0.340    1.010    81.5    79.1    14.9
    1999 04 17    08 25.44   +68 46.9    0.379    1.039    84.6    74.1    15.1
    1999 04 22    09 16.29   +66 33.8    0.419    1.066    86.6    70.3    15.2
    1999 04 27    09 52.00   +64 01.1    0.460    1.090    87.8    67.3    15.4
    1999 05 02    10 18.15   +61 26.5    0.500    1.112    88.3    64.9    15.5
    1999 05 07    10 38.32   +58 55.8    0.540    1.131    88.4    63.1    15.7
    1999 05 12    10 54.69   +56 30.3    0.579    1.148    88.1    61.6    15.8
    1999 05 17    11 08.59   +54 09.9    0.617    1.162    87.5    60.4    15.9
    1999 05 22    11 20.83   +51 54.0    0.654    1.173    86.7    59.5    16.1
    1999 05 27    11 31.93   +49 42.0    0.689    1.183    85.8    58.7    16.2
    1999 06 01    11 42.20   +47 33.1    0.722    1.189    84.7    58.1    16.3
    1999 06 06    11 51.90   +45 26.5    0.754    1.194    83.5    57.6    16.3
    1999 06 11    12 01.19   +43 21.7    0.783    1.196    82.2    57.3    16.4
    1999 06 16    12 10.20   +41 18.0    0.811    1.195    80.9    57.1    16.5
    1999 06 21    12 19.04   +39 15.3    0.836    1.192    79.5    56.9    16.6
    1999 06 26    12 27.73   +37 13.2    0.859    1.187    78.0    56.9    16.6
    1999 07 01    12 36.34   +35 11.3    0.879    1.179    76.6    57.0    16.6
    1999 07 06    12 44.89   +33 09.2    0.897    1.169    75.0    57.1    16.7
    1999 07 11    12 53.41   +31 06.6    0.912    1.157    73.5    57.4    16.7
    1999 07 16    13 01.95   +29 03.2    0.924    1.142    71.9    57.8    16.7
    1999 07 21    13 10.50   +26 58.6    0.933    1.124    70.3    58.3    16.7
    1999 07 26    13 19.07   +24 52.7    0.939    1.104    68.7    59.0    16.7
    1999 07 31    13 27.65   +22 44.9    0.942    1.082    67.0    59.8    16.7
    1999 08 05    13 36.24   +20 34.7    0.940    1.056    65.3    60.7    16.7
    1999 08 10    13 44.82   +18 21.6    0.936    1.029    63.5    61.9    16.6
    1999 08 15    13 53.39   +16 04.9    0.927    0.998    61.7    63.4    16.6
    1999 08 20    14 01.88   +13 43.9    0.914    0.965    59.9    65.1    16.5
    1999 08 25    14 10.22   +11 17.6    0.897    0.929    57.9    67.2    16.5
    1999 08 30    14 18.30   +08 44.8    0.876    0.891    55.8    69.7    16.4
    1999 09 04    14 25.97   +06 03.9    0.850    0.850    53.6    72.8    16.3
    1999 09 09    14 32.97   +03 13.0    0.820    0.806    51.1    76.6    16.3
    1999 09 14    14 38.95   +00 09.6    0.785    0.760    48.3    81.2    16.2
    1999 09 19    14 43.30   -03 09.0    0.747    0.712    45.1    87.0    16.2
    1999 09 24    14 45.11   -06 45.5    0.705    0.663    41.2    94.3    16.2
    1999 09 29    14 43.00   -10 41.4    0.662    0.613    36.5   103.5    16.3
    
    Brian G. Marsden             (C) Copyright 1999 MPC           M.P.E.C. 1999-H17
    

    Read MPEC 1999-H16 Read MPEC 1999-H18


    MPEC number:

    Enter an MPEC number in one of the following forms:

    • 1997-B01 (the full form)
    • J97B01 (the packed version of the full form)
    • B01 (the abbreviated form)