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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 2018.07.18 19:18:40

NET USNO-A2.0

    CK17M040  C2018 07 17.90951 17 02 48.60 +38 31 02.7          15.4 R      B96

    CK17M040  C2018 07 17.91605 17 02 47.96 +38 30 55.1          15.4 R      B96

    CK17M040  C2018 07 17.92269 17 02 47.31 +38 30 47.2          15.4 R      B96

Comet C/2017 M4 (ATLAS) -  17 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     17/07/2018 22:00:05  15.14  14.46  14.17  14.03  13.98  13.94  26.9  18.0  B96

C/2017 M4     17/07/2018 22:00:05*  0.01   0.01   0.02   0.01   0.01   0.02     5   3.8  USN

                                                                     AFRHO         LOG

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

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

C/2017 M4     17/07/2018 22:00:05    3.23   3.69   8.54  15.13   27   1208    45  3.082  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