• Processing (Info)

  • MPEC 2008-T90 : COMET P/2008 T4 (HILL)

    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 2008-T89 Read MPEC 2008-T91


    M.P.E.C. 2008-T90                                Issued 2008 Oct. 8, 18:42 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
    
                                  MPC@CFA.HARVARD.EDU
              URL http://www.cfa.harvard.edu/iau/mpc.html  ISSN 1523-6714
    
                                COMET P/2008 T4 (HILL)
    
    Observations:
        PK08T040  C2008 09 28.28278 01 58 16.50 +07 46 27.1          19.3 N ET090704
        PK08T040  C2008 09 28.29495 01 58 16.16 +07 46 27.6          19.7 N ET090704
        PK08T040  C2008 09 28.30708 01 58 15.81 +07 46 27.0          19.8 N ET090704
        PK08T040  C2008 09 28.31932 01 58 15.46 +07 46 26.3          19.4 N ET090704
        PK08T040  C2008 09 28.33143 01 58 15.09 +07 46 25.9          20.1 N ET090704
        PK08T040  C2008 09 29.35654 01 57 46.98 +07 45 54.1          18.2 T ET090703
        PK08T040  C2008 09 29.36748 01 57 46.65 +07 45 55.4          18.5 T ET090703
        PK08T040  C2008 09 29.37832 01 57 46.36 +07 45 54.8          18.5 T ET090703
        PK08T040  C2008 09 29.38920 01 57 45.97 +07 45 53.4          18.4 T ET090703
        PK08T040  C2008 09 30.28771 01 57 20.64 +07 45 25.1          19.2 N ET090704
        PK08T040  C2008 09 30.29992 01 57 20.21 +07 45 24.7          19.7 N ET090704
        PK08T040  C2008 09 30.31213 01 57 19.84 +07 45 22.3          19.7 N ET090704
        PK08T040  C2008 09 30.32446 01 57 19.51 +07 45 23.7          19.6 N ET090704
        PK08T040  C2008 09 30.33684 01 57 19.07 +07 45 23.2          19.4 N ET090704
        PK08T040  C2008 10 08.38711 01 52 52.10 +07 39 25.5          17.9 T ET090703
        PK08T040  C2008 10 08.39361 01 52 51.78 +07 39 23.6          18.1 T ET090703
        PK08T040  C2008 10 08.40019 01 52 51.49 +07 39 23.9          18.2 T ET090703
        PK08T040  C2008 10 08.40684 01 52 51.27 +07 39 23.1          18.1 T ET090703
        PK08T040  C2008 10 08.41361 01 52 50.97 +07 39 22.2          17.9 T ET090703
        PK08T040  C2008 10 08.41648 01 52 50.88 +07 39 21.6          17.9 T ET090703
        PK08T040  C2008 10 08.41934 01 52 50.77 +07 39 21.6          18.1 T ET090703
        PK08T040  C2008 10 08.42215 01 52 50.61 +07 39 22.2          17.8 T ET090703
        PK08T040  C2008 10 08.44207 01 52 49.98 +07 39 21.3          17.6 T ET090G96
        PK08T040  C2008 10 08.44608 01 52 49.80 +07 39 20.9          18.1 T ET090G96
        PK08T040  C2008 10 08.45013 01 52 49.62 +07 39 20.4          18.0 T ET090G96
        PK08T040  C2008 10 08.45415 01 52 49.47 +07 39 20.5          17.7 T ET090G96
        PK08T040  C2008 10 08.53466 01 52 47.00 +07 39 15.9                 ET090900
        PK08T040  C2008 10 08.54258 01 52 46.68 +07 39 15.0          18.3 T ET090900
    
    Observer details:
    703 Catalina Sky Survey.  Observers R. A. Kowalski, R. E. Hill.  Measurers
        E. C. Beshore, A. Boattini, A. R. Gibbs, A. D. Grauer, R. E. Hill,
        R. A. Kowalski, S. M. Larson.  0.68-m Schmidt + CCD.
    704 Lincoln Laboratory ETS, New Mexico.  Observers M. Bezpalko, D. Torres, R.
        Kracke, G. Spitz, J. Kistler.  Measurers J. Stuart, S. Scruggs.  1.0-m
        f/2.15 reflector + CCD.
    900 Moriyama.  Observer Y. Ikari.  0.26-m f/7.0 reflector + CCD.
    G96 Mt. Lemmon Survey.  Observer A. Boattini.  Measurers E. C. Beshore,
        A. Boattini, A. R. Gibbs, A. D. Grauer, R. E. Hill, R. A. Kowalski,
        S. M. Larson.  1.5-m reflector + CCD.
    
    Orbital elements:
        P/2008 T4 (Hill)
    T 2008 Sept. 21.832 TT                                  MPC
    q   2.44897              (2000.0)            P               Q
    n   0.107188       Peri.  331.404       +0.948131       -0.309981
    a   4.38908        Node    46.835       +0.306931       +0.835098
    e   0.44203        Incl.    5.540       +0.082706       +0.454448
    P   9.20
    From 28 observations 2008 Sept. 28-Oct. 8.
    
    Ephemeris:
        P/2008 T4 (Hill)
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
    2008 10 01    01 56.99   +07 45.0    1.494    2.450   157.8     8.9  18.3
    2008 10 11    01 51.24   +07 37.1    1.466    2.453   168.8     4.5  18.2
    2008 10 21    01 44.53   +07 28.3    1.464    2.458   176.8     1.3  18.2
    2008 10 31    01 37.89   +07 22.7    1.487    2.466   167.3     5.1  18.3
    2008 11 10    01 32.36   +07 24.7    1.537    2.475   156.2     9.3  18.4
    2008 11 20    01 28.71   +07 37.0    1.609    2.487   145.4    13.0  18.5
    2008 11 30    01 27.40   +08 01.2    1.702    2.500   135.1    16.2  18.6
    
    Brian G. Marsden             (C) Copyright 2008 MPC           M.P.E.C. 2008-T90
    

    Read MPEC 2008-T89 Read MPEC 2008-T91


    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)