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  • MPEC 2013-H23 : COMET C/2013 G9 (TENAGRA)

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    M.P.E.C. 2013-H23                                Issued 2013 Apr. 19, 19:36 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 https://www.minorplanetcenter.net/    ISSN 1523-6714
    
                               COMET C/2013 G9 (TENAGRA)
    
    Observations:
        CK13G090  C2013 04 15.39231 16 50 42.39 -01 58 45.1          19.6 TcEH023926
        CK13G090  C2013 04 15.41053 16 50 41.68 -01 58 43.1          19.5 TcEH023926
        CK13G090  C2013 04 15.42498 16 50 41.12 -01 58 41.9          20.0 TcEH023926
        CK13G090  C2013 04 16.07237 16 50 15.82 -01 57 34.4          19.5 TqEH023493
        CK13G090  C2013 04 16.07610 16 50 15.67 -01 57 33.9          19.4 TqEH023493
        CK13G090  C2013 04 16.07964 16 50 15.54 -01 57 33.5          19.2 TqEH023493
        CK13G090  C2013 04 16.08230 16 50 15.48 -01 57 34.7                qEH023118
        CK13G090  C2013 04 16.11348 16 50 13.99 -01 57 31.9                qEH023118
        CK13G090 |C2013 04 16.26378 16 50 08.28 -01 57 12.8          19.9 ToEH023807
        CK13G090 |C2013 04 16.26626 16 50 08.19 -01 57 12.6          19.9 ToEH023807
        CK13G090 |C2013 04 16.26875 16 50 08.09 -01 57 12.4          19.9 ToEH023807
        CK13G090 |C2013 04 16.27122 16 50 07.99 -01 57 12.1          19.9 ToEH023807
        CK13G090 |C2013 04 16.27369 16 50 07.90 -01 57 11.8          20.0 ToEH023807
        CK13G090  C2013 04 16.34711 16 50 05.03 -01 57 05.8          19.9 TcEH023926
        CK13G090  C2013 04 16.36684 16 50 04.29 -01 57 02.6          20.0 TcEH023926
        CK13G090  C2013 04 16.38353 16 50 03.59 -01 57 01.1          19.8 TcEH023926
        CK13G090  C2013 04 16.42352 16 50 01.96 -01 56 57.6                oEH023711
        CK13G090  C2013 04 16.42771 16 50 01.80 -01 56 57.1                oEH023711
        CK13G090  C2013 04 16.43198 16 50 01.62 -01 56 56.6                oEH023711
        CK13G090 1C2013 04 16.56919 16 49 56.23 -01 56 40.9                cEH023Q62
        CK13G090 1C2013 04 16.57174 16 49 56.15 -01 56 40.6                cEH023Q62
        CK13G090 1C2013 04 16.57428 16 49 56.04 -01 56 40.2          19.3 TcEH023Q62
        CK13G090  C2013 04 17.33247 16 49 25.73 -01 55 23.1          19.8 TcEH023926
        CK13G090  C2013 04 17.35654 16 49 24.77 -01 55 20.2          19.9 TcEH023926
        CK13G090  C2013 04 17.37394 16 49 24.04 -01 55 18.8          19.7 TcEH023926
        CK13G090  C2013 04 17.38959 16 49 23.42 -01 55 17.0          19.3 TcEH023926
        CK13G090  C2013 04 17.39953 16 49 23.03 -01 55 16.3          19.3 TcEH023926
        CK13G090  C2013 04 17.41021 16 49 22.58 -01 55 15.7                oEH023711
        CK13G090 IC2013 04 17.41416 16 49 22.33 -01 55 17.0                oEH023711
        CK13G090 IC2013 04 17.41799 16 49 22.27 -01 55 14.8                oEH023711
        CK13G090  C2013 04 17.42266 16 49 22.07 -01 55 13.8          19.2 TcEH023926
        CK13G090  C2013 04 17.43258 16 49 21.66 -01 55 12.7          19.3 TcEH023926
        CK13G090  C2013 04 17.44249 16 49 21.26 -01 55 11.6          19.3 TcEH023926
        CK13G090 6C2013 04 17.71611 16 49 10.22 -01 54 42.6          19.5 TwEH023Q62
        CK13G090 6C2013 04 17.71852 16 49 10.13 -01 54 42.4          19.2 TwEH023Q62
        CK13G090 6C2013 04 17.72090 16 49 10.02 -01 54 42.0          19.4 TwEH023Q62
        CK13G090 6C2013 04 17.72332 16 49 09.92 -01 54 41.7          19.6 TwEH023Q62
        CK13G090 6C2013 04 17.72573 16 49 09.82 -01 54 41.3          19.4 TwEH023Q62
        CK13G090  C2013 04 17.76039 16 49 08.46 -01 54 39.7          20.0 ToEH023300
        CK13G090  C2013 04 17.76412 16 49 08.30 -01 54 39.4          19.8 ToEH023300
        CK13G090  C2013 04 17.76787 16 49 08.15 -01 54 38.3          19.7 ToEH023300
        CK13G090  C2013 04 17.77160 16 49 08.02 -01 54 37.5          19.8 ToEH023300
        CK13G090  C2013 04 17.79024 16 49 07.24 -01 54 36.7          19.3 ToEH023300
        CK13G090  C2013 04 18.33681 16 48 45.09 -01 53 40.0          19.7 TcEH023926
        CK13G090  C2013 04 18.35419 16 48 44.32 -01 53 38.0          19.6 TcEH023926
        CK13G090  C2013 04 18.37111 16 48 43.62 -01 53 36.4          19.6 TcEH023926
        CK13G090 $C2013 04 18.42285 16 48 41.56 -01 53 31.3          19.1 TuEH023F65
        CK13G090 $C2013 04 18.43227 16 48 41.14 -01 53 30.0          18.8 TuEH023F65
    
    Observer details:
    118 Modra.  Observer J. Vilagi.  0.6-m f/5.5 reflector + CCD.
    300 Bisei Spaceguard Center--BATTeRS.  Observers S. Okumura, T. Sakamoto.
        1.0-m f/3.0 reflector + CCD.
    493 Calar Alto.  Observer F. Hormuth.  1.23-m reflector + CCD.
    711 McDonald Observatory.  Observer J. G. Ries.  2.1-m reflector + CCD + focal
        reducer.
    807 Cerro Tololo.  Observers T. Linder, R. Holmes.  0.41-m f/11
        Ritchey-Chretien + CCD.
    926 Tenagra II Observatory.  Observers M. Schwartz, P. R. Holvorcem.  0.41-m
        f/3.75 astrograph + CCD, 0.81-m f/7 Ritchey-Chretien + CCD.
    F65 Haleakala-Faulkes Telescope North.  Observers P. Campbell, N. Howes,
        E. Guido.  Measurers N. Howes, E. Guido.  2.0-m f/10.0 Ritchey-Chretien
        + CCD.
    Q62 iTelescope Observatory, Siding Spring.  Observers H. Sato, E. Bryssinck.
        0.51-m f/6.8 astrograph + CCD + f/4.5 focal reducer.
    
    Orbital elements:
        C/2013 G9 (Tenagra)
    T 2015 Jan. 24.08039 TT                                 MPC
    q   5.1723060            (2000.0)            P               Q
                       Peri.  207.84965     -0.94239334     -0.05372762
                       Node    36.08511     -0.08679357     +0.99248750
    e   1.0            Incl.  145.90528     -0.32305058     -0.10991770
    From 46 observations 2013 Apr. 15-18.
    
    Ephemeris:
        C/2013 G9 (Tenagra)
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
    2013 03 20    17 03 39.6 -02 46 06   6.8566  7.1543   103.5     7.8  19.7
    ...
    2013 04 04    16 57 19.5 -02 19 15   6.5463  7.0828   118.8     7.1  19.6
    ...
    2013 04 12    16 52 50.3 -02 04 45   6.3952  7.0449   127.1     6.5  19.5
    ...
    2013 04 18    16 48 58.8 -01 54 14   6.2909  7.0166   133.2     6.0  19.5
    2013 04 19    16 48 17.8 -01 52 32   6.2744  7.0119   134.2     5.9  19.4
    2013 04 20    16 47 36.2 -01 50 51   6.2581  7.0072   135.2     5.8  19.4
    ...
    2013 04 26    16 43 13.1 -01 41 10   6.1662  6.9790   141.2     5.2  19.4
    ...
    2013 05 04    16 36 49.5 -01 29 44   6.0600  6.9417   148.7     4.3  19.3
    ...
    2013 05 19    16 23 30.9 -01 14 47   5.9178  6.8721   159.0     3.0  19.2
    
    Gareth V. Williams           (C) Copyright 2013 MPC           M.P.E.C. 2013-H23
    

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