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 comet 279P/ LA SAGRA - P/2009 QG31 (LA SAGRA)

Photometric data obtained by use of FOCAS-II software

                                   10x10  20x20  30x30  40x40  50x50  60x60   SNR   SB   COD

OBJECT        DATE       TIME        +/-    +/-    +/-    +/-    +/-    +/-     N  FWHM  CAT

------------  ---------- --------  -----  -----  -----  -----  -----  -----  ----  ----  ---

279P          04/10/2016 23:51:51  18.97  18.52  18.48  18.46                 3.2  18.1  B96

279P          04/10/2016 23:51:51*  0.31   0.02   0.22   0.33                   4   3.9  USN

279P          05/10/2016 22:54:52  19.63  19.27  18.96                        1.6  18.1  B96

279P          05/10/2016 22:54:52*  0.37   0.48   0.70                          4   3.9  CMC

                                                                     AFRHO         LOG

COMET         UTC                   DELTA    r    BOX "   MAG   RSR    CM    +/-  AFRHO  OBS

------------  -------------------   -----  -----  -----  -----  ---  -----  ----  -----  ---

279P          04/10/2016 23:51:51    1.27   2.24  21.73  18.61    3      3     1  0.445  B96

279P          05/10/2016 22:54:52    1.27   2.24  21.74  19.18    2      2     1  0.219  B96

An apparently asteroidal object of 18th magnitude discovered on CCD images taken remotely in the course of the "La Sagra Sky Survey" (LSSS), with a 0.45-m f/2.8 reflector located at Sagra mountain in southeastern Spain, was found to show cometary appearance by CCD astrometrists elsewhere. The observation on August 19.05 was assigned "discovery" status after the Minor Planet Center linked "one-night" LSSS observations made on August 19 with others made on August 25 (though earlier LSSS observations were made on August 16), and later LSSS and Catalina observations linked by the MPC allowed the issuance a comet-like orbit on September 8, in the daily aggregate of new orbits (MPEC 2009-R26). [IAUC 9078, 2009 September 29] The comet was at perihelion in mid October at 2.1 AU and has a period of 6.8 years.