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201P/LONEOS = 2001 R1 = 2008 Q4

Photometric data obtained by use of FOCAS-II software

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

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

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

201P          06/12/2014 19:15:34  16.43  15.95  15.70  15.58  15.67  15.68   7.2  16.7  B96

201P          06/12/2014 19:15:34*  0.05   0.06   0.06   0.11   0.13   0.17     7   3.8  USN

201P          31/12/2014 18:47:58  16.64  16.07  15.74  15.52  15.42  15.32   4.3  16.9  B96

201P          31/12/2014 18:47:58*  0.10   0.09   0.11   0.13   0.16   0.20    18   3.7  USN

201P          01/02/2015 19:13:53  16.04  15.52  15.27  15.09  14.99  14.92   6.6  17.2  B96

201P          01/02/2015 19:13:53*  0.03   0.05   0.02   0.02   0.07   0.12     4   3.8  USN

201P          06/02/2015 18:36:55  16.20  15.63  15.34  15.16  15.05  14.98   9.6  17.7  B96

201P          06/02/2015 18:36:55*  0.06   0.06   0.08   0.07   0.08   0.12    13   3.8  USN

                                                                     AFRHO         LOG

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

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

201P          06/12/2014 19:15:34    0.99   1.41  27.95  15.87    7      8     1  0.925  B96

201P          31/12/2014 18:47:58    1.05   1.35  26.20  15.88    4      9     2  0.933  B96

201P          01/02/2015 19:13:53    1.18   1.36  23.41  15.46    7     16     2  1.205  B96

201P          06/02/2015 18:36:55    1.20   1.37  22.89  15.58   10     15     2  1.184  B96

An apparently asteroidal 18th mag (red) object discovered by LONEOS on 2001 September 10.19 and posted on the NEO Confirmation Page was found to be cometary. [IAUC 7713, 2001 September 11]

Improved orbital elements were published on MPEC 2001-S05, including prediscovery observations on Aug. 19 by LINEAR by B. G. Marsden and these indicate that this comet passed only 0.014 AU from Mars on 2002 Jan. 10.7 TT, as first suggested by C.-I. Lagerkvist (Uppsala) and G. Hahn (German Aerospace Center, Berlin). [IAUC 7720, 2001 September 19] The comet has a period of 6.5 years and was at perihelion on 2002 February 17.

Comet 2001 R1 (P/LONEOS) was recovered by Michael Jaeger from Stixendorf, Austria on August 31.09 as a 17th magnitude object. It was confirmed by Giovanni Sostero and team from the Skylive Observatory, Catania, Italy the following night. The comet is a month past perihelion and will fade. Following posting of the recovery on the comet-ml Maik Meyer located NEAT images on frames from 2001 August. The indicated correction to the prediction on MPC 54169 is Delta T = -0.42 day.