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Comet C/2020 P3  (ATLAS)

Photometric data obtained from FOCAS-II software

COD B96

OBS BRIXIIS Observatory

CATALOG: Gaia DR2 - BAND: G

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

COMET         UTC                    +/-    +/-    +/-    +/-    +/-    +/-     N  FWHM  CAT

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

C/2020 P3     19/09/2020 02:38:51  19.18  18.73  18.82                        4.3  18.0  B96

C/2020 P3     19/09/2020 02:38:51*  0.12   0.13   0.12                          2   3.9  Gai

C/2020 P3     21/09/2020 01:58:05  18.94  18.55  18.64                        8.3  18.2  B96

C/2020 P3     21/09/2020 01:58:05*  0.23   0.03   0.03                          2   3.6  Gai

C/2020 P3     02/11/2020 20:08:23  18.25  18.29  18.09                        6.0  17.3  B96

C/2020 P3     02/11/2020 20:08:23*  0.02   0.08   0.22                          2   3.5  Gai

C/2020 P3     13/11/2020 00:44:36  18.50  18.57  18.16                        6.2  17.7  B96

C/2020 P3     13/11/2020 00:44:36*  0.10   0.06   0.54                          2   3.5  Gai

                                                                     AFRHO         LOG

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

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

C/2020 P3     19/09/2020 02:38:51    6.82   6.96   4.05  19.45    4    357    83  2.553  B96

C/2020 P3     21/09/2020 01:58:05    6.80   6.95   4.06  19.17    8    462    56  2.665  B96

C/2020 P3     02/11/2020 20:08:23    6.47   6.90   4.26  18.39    6    846   141  2.927  B96

C/2020 P3     13/11/2020 00:44:36    6.43   6.89   4.29  18.79    6    574    93  2.759  B96

Af(rho) data according the CARA-approach is available via request to CARA-coordinator

http://cara.uai.it

CBET 4830 : 20200816 : COMET C/2020 P3 (ATLAS)

An apparently asteroidal object discovered on CCD images taken on Aug.9.6 UT with a 0.5-m f/2 Schmidt reflector at Mauna Loa, Hawaii, in the course of the "Asteroid Terrestrial-Impact Last Alert System" (ATLAS) search program has been found to show cometary appearance by CCD astrometrists elsewhere after it was posted on the Minor Planet Center's PCCP webpage.

..... E. Bryssinck, Kruibeke, Belgium, writes that twenty stacked 60-s exposures were taken remotely by a large team of observers: ( M. Rocchetto, E. Guido, M. Fulle, G. Milani, C. Nassef, G. Savini, A. Valvasori and himsel)  with a "Telescope Live" 0.7-m f/8 Ritchey-Chretien operated by M. Rocchetto at Oria, Almeria, Spain, on Aug. 13.14-13.16, which show the object to be definitely a comet with a condensed 8" coma and a tail 17" long in p.a. about 230 degrees; the magnitude was measured as 18.8 in an aperture of radius 5"......