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Astrometric data for minor planet center

COD B96

CON BRIXIIS Observatory - Eyckensbeekstraat 2, B-9150 Kruibeke, Belgium

OBS E.Bryssinck

MEA E.Bryssinck

TEL 0.4-m f/3.8 astrograph + CCD

ACK MPCReport file updated 2018.07.09 12:44:38

NET USNO-A2.0

    CK17M040  C2018 07 08.90341 17 18 58.96 +41 16 49.6          15.7 R      B96

    CK17M040  C2018 07 08.90832 17 18 58.36 +41 16 44.2          15.7 R      B96

    CK17M040  C2018 07 08.91495 17 18 57.60 +41 16 37.6          15.7 R      B96

Comet C/2017 M4 (ATLAS) -  8 july 2018

Photometric data obtained by use of FOCAS-II software

COD B96

CON BRIXIIS Observatory - Eyckensbeekstraat 2, B-9150 Kruibeke, Belgium

CATALOG: USNO A2.0 / CMC 14-15 - BAND: R

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

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

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

C/2017 M4     08/07/2017 22:22:05  17.98  17.95  17.88  17.71  17.49  17.42   3.1  17.6  B96

C/2017 M4     08/07/2017 22:22:05*  0.15   0.24   0.26   0.18   0.51   0.69     4   3.9  USN

                                                                     AFRHO         LOG

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

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

C/2017 M4     08/07/2017 22:22:05    5.92   5.92   4.65  18.34    3    547   176  2.738  B96

FoCAs 3.50

www.astrosurf.com/cometas-obs

es.groups.yahoo.com/group/Cometas_Obs

The Skylive - 3D Solar system simulator for comet C/2017 M4 (ATLAS)

Afρ parameter according to CARA consortium

Afρ vs distance to core - with R-Bessel filter

Afρ data available via request to the CARA-Coordinator