MPEC 2011-R22 : COMET C/2011 Q4 (SWAN)

A form allowing access to any MPEC is at the bottom of this page.

Read MPEC 2011-R21 Read MPEC 2011-R23

M.P.E.C. 2011-R22                                Issued 2011 Sept. 5, 16:46 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 Q4 (SWAN)

Observations:
    CK11Q040 QC2011 09 04.38224 14 13 08.69 -21 54 29.1          12.6 TrER022E12
    CK11Q040 QC2011 09 04.38295 14 13 08.69 -21 54 27.3          12.6 TrER022E12
    CK11Q040 QC2011 09 04.38366 14 13 08.70 -21 54 25.3          13.2 TrER022E12
    CK11Q040 QC2011 09 04.38436 14 13 08.70 -21 54 23.8          13.1 TrER022E12
    CK11Q040 KC2011 09 05.00909 14 13 15.44 -21 28 04.0          14.5 TuER022I20
    CK11Q040 KC2011 09 05.01310 14 13 15.44 -21 27 54.9          14.5 TuER022I20
    CK11Q040 KC2011 09 05.04255 14 13 15.73 -21 26 41.1          14.7 TuER022I20
    CK11Q040  C2011 09 05.33713 14 13 18.91 -21 14 31.5          16.5 TrER022E94
    CK11Q040  C2011 09 05.37344 14 13 19.35 -21 13 01.3          16.2 TrER022E94
    CK11Q040 QC2011 09 05.37773 14 13 19.40 -21 12 52.3          13.3 TrER022E12
    CK11Q040 QC2011 09 05.37940 14 13 19.43 -21 12 47.9                rER022E12
    CK11Q040  C2011 09 05.38887 14 13 19.59 -21 12 24.3          13.4 ToER022E16
    CK11Q040  C2011 09 05.39542 14 13 19.62 -21 12 07.9          15.2 TrER022E94
    CK11Q040 QC2011 09 05.39645 14 13 19.63 -21 12 06.0                rER022E12
    CK11Q040  C2011 09 05.39827 14 13 19.56 -21 12 01.9          13.6 ToER022E16
    CK11Q040 QC2011 09 05.42090 14 13 19.84 -21 11 05.7          12.9 TrER022E12

Observer details:
E12 Siding Spring Survey.  Observer R. H. McNaught.  0.5-m Uppsala Schmidt
    + CCD.
E16 Grove Creek Observatory, Trunkey.  Observer P. Camilleri.  0.35-m f/6
    reflector + CCD.
E94 Possum Observatory, Gisborne.  Observer J. Drummond.  0.35-m f/10
    Schmidt-Cassegrain + CCD.
I20 Rio Cuarto.  Observer F. D. Mazzone.  0.20-m f/4 Schmidt-Newtonian + CCD.

Orbital elements:
    C/2011 Q4 (SWAN)
T 2011 Sept. 21.28223 TT                                MPC
q   1.1251585            (2000.0)            P               Q
                   Peri.    2.21268     -0.34416957     -0.78421094
                   Node   251.72155     -0.86956593     +0.05883493
e   1.0            Incl.  147.06210     -0.35412201     +0.61769868
From 16 observations 2011 Sept. 4-5.

Ephemeris:
    C/2011 Q4 (SWAN)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2011 08 06    14 26 20.8 -66 37 17   0.6983  1.3458   102.0    47.5  13.0
...
2011 08 21    14 11 49.6 -36 11 05   0.9713  1.2326    76.8    53.1  13.3
...
2011 08 29    14 12 10.5 -27 06 14   1.1680  1.1863    65.5    50.8  13.6
...
2011 09 04    14 13 05.0 -22 10 58   1.3190  1.1594    57.9    47.5  13.7
2011 09 05    14 13 15.6 -21 28 32   1.3440  1.1556    56.7    46.8  13.8
2011 09 06    14 13 26.6 -20 47 44   1.3689  1.1521    55.5    46.2  13.8
...
2011 09 12    14 14 36.8 -17 12 05   1.5147  1.1352    48.5    41.6  14.0
...
2011 09 20    14 16 17.1 -13 22 59   1.6958  1.1254    39.8    34.8  14.2
...
2011 10 05    14 19 36.1 -08 00 29   1.9771  1.1468    24.7    21.3  14.6

Gareth V. Williams           (C) Copyright 2011 MPC           M.P.E.C. 2011-R22

Read MPEC 2011-R21 Read MPEC 2011-R23

• 1997-B01 (the full form)
• J97B01 (the packed version of the full form)
• B01 (the abbreviated form)