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MPEC 2010-S28 : COMET P/2010 R2 (LA SAGRA)

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M.P.E.C. 2010-S28                                Issued 2010 Sept. 20, 18:07 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.org/iau/mpc.html  ISSN 1523-6714

                          COMET P/2010 R2 (LA SAGRA)

Observations:
    PK10R020  C2010 09 17.19602 22 20 16.17 +25 19 05.6          18.2 T ES028682
    PK10R020  C2010 09 17.20650 22 20 15.67 +25 19 02.3          18.5 T ES028291
    PK10R020  C2010 09 17.21219 22 20 15.41 +25 19 00.6          18.5 T ES028291
    PK10R020  C2010 09 17.21645 22 20 15.22 +25 18 59.0          18.5 T ES028291
    PK10R020  C2010 09 17.27299 22 20 12.65 +25 18 41.0          18.3 T ES028682
    PK10R020  C2010 09 17.29261 22 20 11.77 +25 18 36.0          18.3 T ES028704
    PK10R020  C2010 09 17.30486 22 20 11.19 +25 18 31.8          18.9 T ES028704
    PK10R020  C2010 09 17.31711 22 20 10.66 +25 18 27.5          18.6 T ES028704
    PK10R020  C2010 09 17.32936 22 20 10.10 +25 18 24.0          18.8 T ES028704
    PK10R020  C2010 09 17.34163 22 20 09.53 +25 18 19.7          19.0 T ES028704
    PK10R020  C2010 09 17.47230 22 20 04.23 +25 17 37.9          18.5 T ES028300
    PK10R020  C2010 09 17.47337 22 20 04.16 +25 17 37.1          18.4 T ES028300
    PK10R020  C2010 09 17.47656 22 20 04.03 +25 17 35.6          18.3 T ES028300
    PK10R020  C2010 09 17.47763 22 20 03.99 +25 17 36.0          18.5 T ES028300
    PK10R020  C2010 09 17.56681 22 19 59.96 +25 17 11.5          18.4 N ES028D96
    PK10R020  C2010 09 17.57580 22 19 59.53 +25 17 08.9          18.6 N ES028D96
    PK10R020  C2010 09 17.58029 22 19 59.32 +25 17 07.5          18.6 N ES028D96
    PK10R020  C2010 09 17.59601 22 19 58.58 +25 17 02.7          18.3 N ES028D96
    PK10R020  C2010 09 17.74510 22 19 52.03 +25 16 07.0          18.3 T ES028349
    PK10R020  C2010 09 17.75387 22 19 51.63 +25 16 04.4                 ES028349
    PK10R020  C2010 09 17.93351 22 19 44.21 +25 15 07.9          18.1 N ES028J47
    PK10R020  C2010 09 17.93562 22 19 43.89 +25 15 05.8          18.2 N ES028C32
    PK10R020  C2010 09 17.93944 22 19 43.95 +25 15 06.2          18.1 N ES028J47
    PK10R020  C2010 09 17.93955 22 19 43.72 +25 15 04.4          18.2 N ES028C32
    PK10R020  C2010 09 17.94609 22 19 43.67 +25 15 03.5          18.1 N ES028J47
    PK10R020  C2010 09 17.94979 22 19 43.50 +25 15 02.5          18.0 N ES028J47
    PK10R020  C2010 09 17.95202 22 19 43.40 +25 15 01.5          18.1 N ES028J47
    PK10R020  C2010 09 17.95868 22 19 43.10 +25 14 59.3          18.1 N ES028J47
    PK10R020  C2010 09 17.96019 22 19 43.02 +25 14 59.3          17.9 N ES028J47
    PK10R020  C2010 09 17.97949 22 19 42.12 +25 14 51.7          18.2 N ES028B82
    PK10R020  C2010 09 17.98091 22 19 42.11 +25 14 51.9          18.1 N ES028J47
    PK10R020  C2010 09 17.98125 22 19 41.88 +25 14 50.7          17.9 N ES028C32
    PK10R020  C2010 09 17.98384 22 19 41.92 +25 14 49.7          18.1 N ES028B82
    PK10R020  C2010 09 17.98819 22 19 41.75 +25 14 48.6          18.2 N ES028B82
    PK10R020  C2010 09 18.90605 22 19 03.07 +25 09 40.0          18.2 N ES028J01
    PK10R020  C2010 09 18.92442 22 19 02.24 +25 09 33.8          18.2 N ES028J01
    PK10R020  C2010 09 18.94741 22 19 01.25 +25 09 25.9          18.3 N ES028J01
    PK10R020  C2010 09 18.97987 22 18 59.82 +25 09 14.9          18.1 N ES028B82
    PK10R020  C2010 09 18.98640 22 18 59.48 +25 09 12.1          18.1 N ES028B82
    PK10R020  C2010 09 18.99512 22 18 59.16 +25 09 08.3          18.1 N ES028B82
    PK10R020  C2010 09 19.83194 22 18 24.81 +25 04 16.5          18.2 N ES028B49
    PK10R020  C2010 09 19.84283 22 18 24.35 +25 04 12.5          18.4 N ES028B49
    PK10R020  C2010 09 19.86218 22 18 23.51 +25 04 06.6          18.4 N ES028B49
    PK10R020  C2010 09 19.90180 22 18 21.89 +25 03 52.5          18.2 N ES028J01
    PK10R020  C2010 09 19.90645 22 18 21.70 +25 03 50.9          18.3 N ES028J01
    PK10R020  C2010 09 19.91021 22 18 21.53 +25 03 48.9          18.5 N ES028160
    PK10R020  C2010 09 19.91110 22 18 21.51 +25 03 49.4          18.4 N ES028J01
    PK10R020  C2010 09 19.91559 22 18 21.27 +25 03 47.2          18.7 N ES028160
    PK10R020  C2010 09 19.92071 22 18 21.03 +25 03 45.9          18.7 N ES028160

Observer details:
160 Castelmartini.  Observers M. Jaeger, E. Prosperi, W. Vollmann.  Measurer
    E. Prosperi.  0.35-m f/10 Schmidt-Cassegrain + CCD.
291 LPL/Spacewatch II.  Observer J. V. Scotti.  1.8-m f/2.7 reflector + CCD.
300 Bisei Spaceguard Center--BATTeRS.  Observers A. Asami, S. Okumura.  1.0-m
    f/3.0 reflector + CCD.
349 Ageo.  Observer K. Kadota.  0.25-m f/5.0 reflector + CCD.
682 Kanab.  Observer E. Sheridan.  35.60-m f/11 Schmidt-Cassegrain + CCD.
704 Lincoln Laboratory ETS, New Mexico.  Observers M. Blythe, G. Spitz,
    R. Brungard, J. Paige, P. Festler.  1.0-m f/2.15 reflector + CCD.
B49 Paus Observatory, Sabadell.  Observer J. Camarasa.  0.25-m f/4 Newtonian
    reflector + CCD.
B82 Maidbronn.  Observer B. Haeusler.  0.30-m Schmidt-Cassegrain + CCD.
C32 Ka-Dar Observatory, TAU Station, Nizhny Arkhyz.  Observer V. Gerke.
    Measurers D. Chestnov, A. Novichonok, S. Korotkiy.  0.40-m f/8
    Ritchey-Chretien + CCD.  Long. = 41.4258, rho cos phi' = 0.72496,
    rho sin phi' = +0.68694.
D96 Tzec Maun Observatory, Moorook.  Observers G. Sostero, E. Guido, L. Donato,
    V. Gonano.  0.15-m f/7.3 refractor + CCD.
J01 Observatorio Cielo Profundo, Oviedo.  Observer J. Gonzalez.  0.23-m f/10
    Schmidt-Cassegrain + CCD.
J47 Observatorio Nazaret.  Observer G. Muler.  Measurers J. M. Ruiz, G. Muler.
    0.30-m Schmidt-Cassegrain + CCD.

Orbital elements:
    P/2010 R2 (La Sagra)
T 2010 June 25.0979 TT                                  MPC
q   2.622922             (2000.0)            P               Q
n   0.1806143      Peri.   59.3696      +0.8078131      +0.4629648
a   3.099569       Node   270.7569      -0.5825876      +0.7212030
e   0.153778       Incl.   21.3991      +0.0896084      +0.5152959
P   5.46
From 87 observations 2010 Aug. 12-Sept. 19.

Ephemeris:
    P/2010 R2 (La Sagra)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2010 09 11    22 25.05   +25 47.1    1.740    2.643   147.1    12.0  18.4
2010 09 21    22 17.63   +24 57.3    1.759    2.648   145.5    12.4  18.5
2010 10 01    22 12.10   +23 46.9    1.798    2.654   141.2    13.7  18.5
2010 10 11    22 09.04   +22 25.0    1.859    2.661   135.1    15.4  18.6
2010 10 21    22 08.71   +21 00.8    1.937    2.668   128.0    17.1  18.7
2010 10 31    22 11.06   +19 41.7    2.031    2.675   120.5    18.7  18.8
2010 11 10    22 15.92   +18 33.1    2.138    2.684   112.9    19.9  18.9
2010 11 20    22 23.01   +17 38.4    2.254    2.692   105.5    20.7  19.1

Brian G. Marsden             (C) Copyright 2010 MPC           M.P.E.C. 2010-S28

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