• Processing (Info)

    • MPEC 2011-U85 : COMET C/2011 U2 (BRESSI)

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    M.P.E.C. 2011-U85                                Issued 2011 Oct. 26, 19:10 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/2011 U2 (BRESSI)

Observations:
    CK11U020  C2011 10 24.20595 02 59 13.56 +25 10 56.7          19.4 ToEU085691
    CK11U020  C2011 10 24.22375 02 59 12.92 +25 10 54.1          19.4 ToEU085691
    CK11U020  C2011 10 24.24155 02 59 12.44 +25 10 51.9          19.4 ToEU085691
    CK11U020 HC2011 10 24.42232 02 59 06.88 +25 10 26.7                oEU085291
    CK11U020 HC2011 10 24.42580 02 59 06.79 +25 10 26.1                oEU085291
    CK11U020 HC2011 10 24.42928 02 59 06.67 +25 10 25.9                oEU085291
    CK11U020  C2011 10 24.77153 02 58 56.46 +25 09 36.5          19.4 TuEU085B18
    CK11U020  C2011 10 24.77465 02 58 56.33 +25 09 36.4          19.0 TuEU085B18
    CK11U020  C2011 10 24.77780 02 58 56.22 +25 09 35.5          19.3 TuEU085B18
    CK11U020 HC2011 10 25.41214 02 58 36.66 +25 08 04.6                oEU085291
    CK11U020 HC2011 10 25.41574 02 58 36.56 +25 08 04.2                oEU085291
    CK11U020 HC2011 10 25.41933 02 58 36.44 +25 08 03.5                oEU085291
    CK11U020 $C2011 10 25.50262 02 58 33.94 +25 07 51.9          19.7 ToEU085F65
    CK11U020 $C2011 10 25.50691 02 58 33.82 +25 07 51.7          19.4 ToEU085F65
    CK11U020 `C2011 10 25.61437 02 58 30.46 +25 07 36.7          19.4 TuEU085D90
    CK11U020 `C2011 10 25.62610 02 58 30.07 +25 07 34.9          19.0 TuEU085D90
    CK11U020 `C2011 10 25.63785 02 58 29.75 +25 07 33.8          19.2 TuEU085D90
    CK11U020  C2011 10 25.98293 02 58 18.99 +25 06 40.0          18.7 TuEU085B18
    CK11U020  C2011 10 25.98501 02 58 18.94 +25 06 39.5          18.9 TuEU085B18
    CK11U020  C2011 10 25.98712 02 58 18.91 +25 06 39.5          18.7 TuEU085B18
    CK11U020 HC2011 10 26.21311 02 58 12.10 +25 06 06.5                oEU085291
    CK11U020 HC2011 10 26.21744 02 58 11.98 +25 06 05.8                oEU085291
    CK11U020 HC2011 10 26.22173 02 58 11.85 +25 06 05.4                oEU085291
    CK11U020 *C2011 10 26.23076 02 58 11.52 +25 06 03.7          18.9 TuEU085H06
    CK11U020 *C2011 10 26.23674 02 58 11.34 +25 06 02.8          18.8 TuEU085H06
    CK11U020 *C2011 10 26.24272 02 58 11.16 +25 06 01.8          18.9 TuEU085H06

Observer details:
291 LPL/Spacewatch II.  Observers T. H. Bressi, R. S. McMillan.  1.8-m f/2.7
    reflector + CCD.
691 Steward Observatory, Kitt Peak.  Observer T. H. Bressi.  0.9-m f/3
    reflector + CCD.
B18 Terskol.  Observers M. Andreev, A. Sergeev, N. Parakhin, V. Kozlov,
    N. Karpov.  Measurer M. Andreev.  0.6-m f/12.8 Cassegrain + CCD.
D90 RAS Observatory, Moorook.  Observer K. Hills.  0.41-m f/9 Ritchey-Chretien
    + CCD.
F65 Haleakala-Faulkes Telescope North.  Observers D. Cirelli, E. Guido,
    N. Howes, G. Sostero.  2.0-m f/10.0 Ritchey-Chretien + CCD.
H06 RAS Observatory, Mayhill.  Observer R. Ligustri.  0.50-m f/4.5 reflector
    + CCD.

Orbital elements:
    C/2011 U2 (Bressi)
T 2012 Oct.  9.20458 TT                                 MPC
q   2.4938725            (2000.0)            P               Q
                   Peri.  222.89029     -0.58750507     -0.79128186
                   Node   263.79400     +0.78092024     -0.49949940
e   1.0            Incl.    9.81349     +0.21213528     -0.35266608
From 26 observations 2011 Oct. 24-26.

Ephemeris:
    C/2011 U2 (Bressi)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2011 09 26    03 08 31.2 +25 41 53   3.8726  4.5841   130.2     9.6  19.6
...
2011 10 11    03 04 52.8 +25 33 55   3.6109  4.4691   145.4     7.3  19.3
...
2011 10 19    03 01 41.7 +25 21 51   3.4923  4.4080   153.8     5.7  19.2
...
2011 10 25    02 58 49.4 +25 09 05   3.4142  4.3622   160.0     4.5  19.1
2011 10 26    02 58 18.6 +25 06 39   3.4022  4.3546   161.0     4.3  19.0
2011 10 27    02 57 47.3 +25 04 07   3.3905  4.3469   162.1     4.0  19.0
...
2011 11 02    02 54 29.9 +24 47 11   3.3261  4.3013   167.8     2.8  18.9
...
2011 11 10    02 49 49.7 +24 20 12   3.2569  4.2405   172.3     1.8  18.8
...
2011 11 25    02 41 04.2 +23 19 23   3.1793  4.1272   161.4     4.4  18.7

Gareth V. Williams           (C) Copyright 2011 MPC           M.P.E.C. 2011-U85

    Read MPEC 2011-U84 Read MPEC 2011-U86

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