[Iaude] MPEC F11: COMET C/2018 E2 (Barros)

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Fri Mar 16 14:51:16 EDT 2018


M.P.E.C. 2018-F11                                Issued 2018 Mar. 16, 18:45 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 at CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714


                           COMET C/2018 E2 (Barros)
 
Observations:
    CK18E020* C2018 03 12.92654 04 33 22.97 -43 32 03.5          19.4 TrEF011Y00
    CK18E020  C2018 03 12.92953 04 33 23.16 -43 31 59.5          19.2 TrEF011Y00
    CK18E020  C2018 03 12.93224 04 33 23.02 -43 31 55.6          19.4 TrEF011Y00
    CK18E020  C2018 03 12.93418 04 33 23.15 -43 31 53.9          19.4 TrEF011Y00
    CK18E020  C2018 03 12.93897 04 33 23.05 -43 31 46.0          19.5 TrEF011Y00
    CK18E020  C2018 03 12.94095 04 33 23.20 -43 31 42.4          19.3 TrEF011Y00
    CK18E020  C2018 03 12.94393 04 33 23.20 -43 31 39.6          19.3 TrEF011Y00
    CK18E020  C2018 03 12.94659 04 33 23.19 -43 31 35.8          19.3 TrEF011Y00
    CK18E020  C2018 03 12.95356 04 33 23.27 -43 31 26.2          19.3 TrEF011Y00
    CK18E020  C2018 03 12.99805 04 33 23.55 -43 30 23.9          19.3 TrEF011Y00
    CK18E020  C2018 03 13.00039 04 33 23.73 -43 30 20.9          19.3 TrEF011Y00
    CK18E020  C2018 03 13.00273 04 33 23.76 -43 30 17.4          19.3 TrEF011Y00
    CK18E020 |C2018 03 13.01498 04 33 23.74 -43 30 00.0          19.8 TUEF011807
    CK18E020 |C2018 03 13.01668 04 33 23.76 -43 29 57.6          19.9 TUEF011807
    CK18E020 |C2018 03 13.01826 04 33 23.80 -43 29 55.0          19.9 TUEF011807
    CK18E020 KC2018 03 14.00963 04 33 33.23 -43 06 59.2          18.6 TqEF011W96
    CK18E020 KC2018 03 14.02161 04 33 33.25 -43 06 42.0          18.4 TqEF011W96
    CK18E020 KC2018 03 14.02645 04 33 33.37 -43 06 35.4          18.3 TqEF011I47
    CK18E020 KC2018 03 14.03787 04 33 33.46 -43 06 19.3          18.3 TqEF011I47
    CK18E020 KC2018 03 14.03875 04 33 33.41 -43 06 17.9          18.6 TqEF011W96
    CK18E020 KC2018 03 14.05072 04 33 33.50 -43 06 02.0          18.5 TqEF011W96
    CK18E020 KC2018 03 14.05880 04 33 33.70 -43 05 50.4          18.3 TqEF011I47
    CK18E020 KC2018 03 14.07874 04 33 33.88 -43 05 22.2          18.3 TqEF011I47
    CK18E020 1C2018 03 14.41355 04 33 37.29 -42 57 39.8                vEF011Q62
    CK18E020 1C2018 03 14.41560 04 33 37.32 -42 57 37.0                vEF011Q62
    CK18E020 1C2018 03 14.41765 04 33 37.33 -42 57 34.0          17.6 TvEF011Q62
    CK18E020  C2018 03 15.96058 04 33 54.93 -42 22 14.5          19.3 TrEF011Y00
    CK18E020  C2018 03 15.96491 04 33 54.96 -42 22 07.7          19.4 TrEF011Y00
    CK18E020  C2018 03 15.96892 04 33 55.11 -42 22 03.4          19.1 TrEF011Y00
    CK18E020  C2018 03 15.98103 04 33 55.24 -42 21 46.6          19.2 TrEF011Y00
    CK18E020  C2018 03 15.98341 04 33 55.22 -42 21 42.0          19.4 TrEF011Y00
    CK18E020  C2018 03 15.98532 04 33 55.24 -42 21 39.8          19.2 TrEF011Y00
    CK18E020  C2018 03 15.99194 04 33 55.40 -42 21 30.9          19.3 TrEF011Y00
    CK18E020 KC2018 03 16.37779 04 34 00.13 -42 12 43.1          19.4 TUEF011474
    CK18E020 KC2018 03 16.38201 04 34 00.14 -42 12 37.6          19.8 TUEF011474
    CK18E020 KC2018 03 16.38623 04 34 00.25 -42 12 32.1          20.0 TUEF011474
 
Observer details:
474 Mount John Observatory, Lake Tekapo.  Observers A. C. Gilmore,
    P. M. Kilmartin.  Measurer P. M. Kilmartin.  1.0-m f/7.7 reflector + CCD.
807 Cerro Tololo.  Observers T. Linder, R. Holmes.  0.61-m f/6.5 astrograph
    + CCD.
I47 Pierre Auger Observatory, Malargue.  Observer M. Masek.  0.3-m f/10
    reflector + CCD.
Q62 iTelescope Observatory, Siding Spring.  Observer H. Sato.  0.51-m f/6.8
    astrograph + CCD + f/4.5 focal reducer.
W96 CAO, San Pedro de Atacama (since 2013).  Observers A. Maury, J.-B. Vanssay,
    J.-F. Soulier.  Measurer J.-F. Soulier.  0.4-m f/5.2 Ritchey-Chretien
    + CCD.
Y00 SONEAR Observatory, Oliveira.  Observers C. Jacques, E. Pimentel,
    J. Barros.  Measurer C. Jacques.  0.45-m f/2.9 reflector + CCD.
 
Orbital elements:
    C/2018 E2 (Barros)
T 2017 Nov. 25.03269 TT                                 MPCW
q   3.8516651            (2000.0)            P               Q
                   Peri.  271.91939     -0.11560282     +0.40343079
                   Node    66.46354     +0.47331195     +0.82576366
e   1.0            Incl.   98.09187     -0.87327647     +0.39415475
>From 36 observations 2018 Mar. 12-16.

Ephemeris:
    C/2018 E2 (Barros)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2018 02 14    04 38 59.5 -54 33 16   3.8534  3.9163    86.3    14.6  19.4
...
2018 03 01    04 33 13.3 -48 17 56   3.9560  3.9421    82.0    14.4  19.4
...
2018 03 09    04 32 58.1 -45 04 20   4.0244  3.9575    79.0    14.3  19.5
...
2018 03 15    04 33 43.8 -42 44 12   4.0807  3.9698    76.6    14.1  19.5
2018 03 16    04 33 55.5 -42 21 21   4.0905  3.9719    76.2    14.1  19.5
2018 03 17    04 34 08.3 -41 58 38   4.1003  3.9740    75.7    14.0  19.6
...
2018 03 23    04 35 46.0 -39 45 42   4.1611  3.9872    73.1    13.8  19.6
...
2018 03 31    04 38 44.0 -36 57 55   4.2455  4.0057    69.5    13.5  19.7
...
2018 04 15    04 46 06.7 -32 14 32   4.4084  4.0434    62.4    12.7  19.8

Gareth V. Williams           (C) Copyright 2018 MPC           M.P.E.C. 2018-F11



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