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MPEC 2011-L42 : COMET C/2011 L6 (BOATTINI)

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M.P.E.C. 2011-L42                                Issued 2011 June 11, 18:28 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.minorplanetcenter.net/    ISSN 1523-6714

                          COMET C/2011 L6 (BOATTINI)

Observations:
    CK11L060  C2011 05 28.25793 15 08 41.35 -20 55 28.5          20.3 TrEL042G96
    CK11L060  C2011 05 28.26594 15 08 40.77 -20 55 26.3          20.5 TrEL042G96
    CK11L060  C2011 05 28.27401 15 08 40.30 -20 55 23.8          20.4 TrEL042G96
    CK11L060  C2011 05 28.28204 15 08 39.91 -20 55 21.6          20.4 TrEL042G96
    CK11L060  C2011 06 08.20999 14 58 04.44 -20 01 13.8          20.5 TrEL042G96
    CK11L060  C2011 06 08.21749 14 58 04.08 -20 01 11.0          20.2 TrEL042G96
    CK11L060  C2011 06 08.22492 14 58 03.57 -20 01 08.8          20.4 TrEL042G96
    CK11L060  C2011 06 08.23240 14 58 03.21 -20 01 06.4          20.2 TrEL042G96
    CK11L060  C2011 06 09.22233 14 57 08.74 -19 56 15.0          20.2 TrEL042G96
    CK11L060  C2011 06 09.23052 14 57 08.31 -19 56 12.6          20.8 TrEL042G96
    CK11L060  C2011 06 09.23876 14 57 07.81 -19 56 09.6          20.6 TrEL042G96
    CK11L060  C2011 06 09.24691 14 57 07.34 -19 56 08.4          19.9 TrEL042G96
    CK11L060  C2011 06 09.25593 14 57 06.88 -19 56 04.4          20.4 TrEL042G96
    CK11L060  C2011 06 09.25683 14 57 06.82 -19 56 04.1          20.5 TrEL042G96
    CK11L060  C2011 06 09.25776 14 57 06.77 -19 56 03.8          20.7 TrEL042G96
    CK11L060  C2011 06 09.25868 14 57 06.71 -19 56 03.5          20.4 TrEL042G96
    CK11L060  C2011 06 09.25958 14 57 06.73 -19 56 03.4          20.4 TrEL042G96
    CK11L060  C2011 06 09.30173 14 57 04.39 -19 55 51.7          20.8 ToEL042291
    CK11L060  C2011 06 09.30559 14 57 04.12 -19 55 49.8          21.1 ToEL042291
    CK11L060  C2011 06 09.30964 14 57 03.94 -19 55 48.8          21.3 ToEL042291
    CK11L060  C2011 06 09.31433 14 57 03.64 -19 55 47.6          21.6 ToEL042291
    CK11L060  C2011 06 09.31878 14 57 03.46 -19 55 46.0          21.5 ToEL042291
    CK11L060  C2011 06 09.32268 14 57 03.16 -19 55 45.3          21.8 ToEL042291
    CK11L060  C2011 06 10.20299 14 56 15.46 -19 51 26.7          21.0 TrEL042G96
    CK11L060  C2011 06 10.21176 14 56 14.96 -19 51 24.5          20.2 TrEL042G96
    CK11L060  C2011 06 10.21654 14 56 14.61 -19 51 22.1          21.6 ToEL042291
    CK11L060  C2011 06 10.22060 14 56 14.37 -19 51 20.5          21.2 ToEL042291
    CK11L060  C2011 06 10.22072 14 56 14.42 -19 51 21.9          20.9 TrEL042G96
    CK11L060  C2011 06 10.22446 14 56 14.17 -19 51 20.2          21.5 ToEL042291
    CK11L060 HC2011 06 10.22933 14 56 14.02 -19 51 18.9                oEL042291
    CK11L060  C2011 06 10.22973 14 56 13.88 -19 51 18.8          20.4 TrEL042G96
    CK11L060 HC2011 06 10.23330 14 56 13.80 -19 51 17.5                oEL042291
    CK11L060  C2011 06 10.23781 14 56 13.46 -19 51 15.8          21.7 ToEL042291
    CK11L060  C2011 06 10.24466 14 56 13.06 -19 51 14.3          22.1 ToEL042291
    CK11L060 HC2011 06 10.24935 14 56 12.82 -19 51 11.6                oEL042291
    CK11L060  C2011 06 10.25323 14 56 12.66 -19 51 12.2          21.7 ToEL042291
    CK11L060  C2011 06 11.33286 14 55 14.58 -19 45 56.2          20.5 TrEL042G96
    CK11L060  C2011 06 11.33443 14 55 14.46 -19 45 55.6          20.8 TrEL042G96
    CK11L060  C2011 06 11.33606 14 55 14.37 -19 45 55.8          21.6 TrEL042G96

Observer details:
291 LPL/Spacewatch II.  Observer J. V. Scotti.  1.8-m f/2.7 reflector + CCD.
G96 Mt. Lemmon Survey.  Observers A. Boattini, A. R. Gibbs.  Measurers
    J. D. Ahern, E. C. Beshore, A. Boattini, G. J. Garradd, A. R. Gibbs,
    A. D. Grauer, R. E. Hill, R. A. Kowalski, S. M. Larson, R. H. McNaught.
    1.5-m reflector + CCD.

Orbital elements:
    C/2011 L6 (Boattini)
T 2011 Jan. 20.76725 TT                                 MPC
q   6.7840889            (2000.0)            P               Q
                   Peri.  331.44591     -0.45636916     -0.88580476
                   Node   214.48611     -0.78551293     +0.35666954
e   1.0            Incl.  171.45549     -0.41796725     +0.29687837
From 39 observations 2011 May 28-June 11.

Ephemeris:
    C/2011 L6 (Boattini)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2011 05 12    15 25 42.3 -22 13 16   5.8171  6.8237   174.8     0.8  21.2
...
2011 05 27    15 09 57.9 -21 01 41   5.8504  6.8350   165.3     2.2  21.2
...
2011 06 04    15 02 02.3 -20 22 00   5.9039  6.8417   155.8     3.5  21.2
...
2011 06 10    14 56 26.4 -19 52 25   5.9593  6.8469   148.7     4.4  21.2
2011 06 11    14 55 32.5 -19 47 32   5.9697  6.8478   147.5     4.6  21.2
2011 06 12    14 54 39.1 -19 42 41   5.9804  6.8487   146.3     4.7  21.2
...
2011 06 18    14 49 32.7 -19 14 00   6.0514  6.8542   139.3     5.5  21.3
...
2011 06 26    14 43 22.7 -18 37 34   6.1622  6.8619   130.2     6.5  21.3
...
2011 07 11    14 33 57.8 -17 37 04   6.4093  6.8774   113.5     7.8  21.4

Gareth V. Williams           (C) Copyright 2011 MPC           M.P.E.C. 2011-L42

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