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 2018.06.10 10:48:05

NET CMC-15

CK17M040 C2018 06 09.91600 18 20 23.23 +46 19 37.5 15.6 R B96

CK17M040 C2018 06 09.91763 18 20 23.04 +46 19 37.1 15.8 R B96

CK17M040 C2018 06 09.91926 18 20 22.83 +46 19 36.7 15.7 R B96

CK17M040 C2018 06 09.92089 18 20 22.63 +46 19 36.4 15.7 R B96

CK17M040 C2018 06 09.92253 18 20 22.41 +46 19 35.9 15.7 R B96

CK17M040 C2018 06 09.92426 18 20 22.22 +46 19 35.6 15.9 R B96

CK17M040 C2018 06 09.92589 18 20 21.98 +46 19 35.1 15.8 R B96

CK17M040 C2018 06 09.92752 18 20 21.77 +46 19 34.8 15.7 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 09/06/2018 22:08:28 15.41 14.83 14.59 14.49 14.50 14.54 17.6 16.6 B96

C/2017 M4 09/06/2018 22:08:28* 0.03 0.08 0.09 0.12 0.17 0.16 4 3.5 CMC

AFRHO LOG

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

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

C/2017 M4 09/06/2018 22:08:28 3.41 3.86 8.08 15.39 18 1171 67 3.069 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