• MPC Preparation (Info)

  • MPEC 2020-N11 : COMET C/2020 M3 (ATLAS)

    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 2020-N10 Read MPEC 2020-N12


    M.P.E.C. 2020-N11                                  Issued 2020 July 3, 00:12 UT
    
         The Minor Planet Electronic Circulars contain information on unusual
             minor planets and routine data on comets.  They are published
        on behalf of Division F 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/2020 M3 (ATLAS)                         
    
         This object was reported on June 27 UT as a NEO candidate by ATLAS-MLO
    (T08).  There have been subsequent reports of cometary actvity, as follows:
    
    OC   Date        Reporter           Coma    Tail    PA          Exposures
    Q62  2020-06-28  H. Sato             8"      12"    245           8x60s
    Q62  2020-06-29  H. Sato             8"      12"                  6x60s
    Q62  2020-06-30  K. Yoshimoto       11"       8"    235           8x60s
    Q62  2020-07-01  A. Valvasori       10"                          24x60s
    
    Observations:
        CK20M030* C2020 06 27.58137300 08 11.58 -31 31 11.9          18.89oVEN011T08
        CK20M030  C2020 06 27.58691500 08 12.24 -31 31 12.8          18.94oVEN011T08
        CK20M030  C2020 06 27.60453100 08 14.47 -31 31 17.7          18.89oVEN011T08
        CK20M030  C2020 06 27.61237000 08 15.57 -31 31 19.7          18.88oVEN011T08
        CK20M030 1C2020 06 28.69872 00 10 40.05 -31 35 18.8                VEN011Q62
        CK20M030 1C2020 06 28.70209 00 10 40.44 -31 35 19.6          18.6 GVEN011Q62
        CK20M030 1C2020 06 29.70711 00 12 54.75 -31 39 11.9                VEN011Q62
        CK20M030 1C2020 06 29.70966 00 12 55.08 -31 39 12.4          18.8 GVEN011Q62
        CK20M030 aC2020 06 30.76821 00 15 17.20 -31 43 23.6                VEN011Q62
        CK20M030 aC2020 06 30.77188 00 15 17.68 -31 43 24.7          18.8 RVEN011Q62
        CK20M030  C2020 07 01.56606100 17 05.01 -31 46 41.4          18.77oVEN011T08
        CK20M030  C2020 07 01.56891200 17 05.40 -31 46 42.2          18.61oVEN011T08
        CK20M030  C2020 07 01.57490000 17 06.21 -31 46 43.4          18.61oVEN011T08
        CK20M030  C2020 07 01.58603400 17 07.63 -31 46 46.6          18.95oVEN011T08
        CK20M030 AC2020 07 01.63376 00 17 14.30 -31 46 52.2          18.1 GVEN011Q62
        CK20M030 AC2020 07 01.64507 00 17 15.81 -31 46 54.7          18.6 GVEN011Q62
    
    Observer details:
    Q62 iTelescope Observatory, Siding Spring.  Observers H. Sato, K. Yoshimoto,
        A. Valvasori, E. Guido.  0.51-m f/6.8 astrograph + CCD + f/4.5 focal
        reducer, 0.50-m f/6.8 reflector + CCD + f/4.5 focal reducer, 0.50-m f/6.8
        reflector + CCD.
    T08 ATLAS-MLO, Mauna Loa.  Observers L. Denneau, J. Tonry, A. Heinze, H.
        Weiland, H. Flewelling.  Measurers L. Denneau, J. Tonry, A. Heinze, H.
        Weiland, H. Flewelling, B. Stalder, A. Fitzsimmons, J. Robinson, N.
        Erasmus.  0.5-m reflector + CCD.
    
    Orbital elements:
        C/2020 M3 (ATLAS)                                                           
    T 2020 Oct. 24.12156 TT                                 Rudenko                 
    q   1.3130224            (2000.0)            P               Q                  
                       Peri.  324.63091     +0.74601824     -0.54258077             
                       Node    72.88653     +0.66508329     +0.57791977             
    e   1.0            Incl.   23.82679     +0.03348146     +0.60960221             
    From 16 observations 2020 June 27-July 1.                                       
                                                                                    
    Ephemeris:
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase   m1    m2
    2020 06 03    23 16 58.9 -30 29 53   2.0896  2.3951    94.6    25.0  19.9
    ...
    2020 06 18    23 47 31.7 -31 00 15   1.7988  2.2373   101.6    26.4  19.3
    ...
    2020 06 26    00 04 42.5 -31 25 25   1.6541  2.1541   105.0    27.1  18.9
    ...
    2020 07 02    00 18 03.4 -31 48 24   1.5510  2.0922   107.3    27.6  18.7
    2020 07 03    00 20 19.4 -31 52 33   1.5343  2.0819   107.7    27.7  18.6
    2020 07 04    00 22 36.2 -31 56 48   1.5177  2.0717   108.0    27.8  18.6
    ...
    2020 07 10    00 36 32.5 -32 24 09   1.4212  2.0107   110.0    28.4  18.3
    ...
    2020 07 18    00 55 51.2 -33 05 02   1.3005  1.9306   112.3    29.1  17.9
    ...
    2020 08 02    01 34 17.8 -34 29 03   1.0999  1.7858   115.2    31.0  17.2
    
    M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-N11
    


    Read MPEC 2020-N10 Read MPEC 2020-N12


    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)