comet C/2017 M4 (ATLAS)

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 2018.06.26 21:30:17

NET USNO-A2.0

CK17M040 C2018 06 25.91049 17 45 41.49 +44 19 34.6 15.8 R B96

CK17M040 C2018 06 25.91375 17 45 41.09 +44 19 32.7 15.8 R B96

CK17M040 C2018 06 25.91703 17 45 40.65 +44 19 30.2 15.9 R B96

CK17M040 C2018 06 25.92039 17 45 40.21 +44 19 27.9 15.8 R B96

CK17M040 C2018 06 25.92366 17 45 39.79 +44 19 25.9 15.8 R B96

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 25/06/2018 22:01:29 15.54 14.84 14.56 14.44 14.36 14.35 26.3 17.9 B96

C/2017 M4 25/06/2018 22:01:29* 0.02 0.02 0.01 0.01 0.02 0.03 5 3.4 USN

AFRHO LOG

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

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

C/2017 M4 25/06/2018 22:01:29 3.29 3.79 8.38 15.53 26 912 35 2.960 B96

FoCAs 3.50

www.astrosurf.com/cometas-obs

es.groups.yahoo.com/group/Cometas_Obs

Afρ parameter according to CARA consortium

Afρ vs distance to core - with R-Bessel filter

Afρ data available via request to the CARA-Coordinator