Comet C/2017 S3 (PANSTARRS)

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 2018.07.13 13:35:29

NET USNO-A2.0

CK17S030 C2018 07 12.94882 04 12 39.73 +57 58 09.5 15.4 R B96

CK17S030 C2018 07 12.94976 04 12 40.03 +57 58 09.1 15.4 R B96

CK17S030 C2018 07 12.95069 04 12 40.54 +57 58 08.4 15.5 R B96

CK17S030 C2018 07 12.95163 04 12 40.87 +57 58 07.7 15.5 R B96

CK17S030 C2018 07 12.95257 04 12 41.41 +57 58 05.8 15.5 R B96

CK17S030 C2018 07 12.95446 04 12 42.13 +57 58 04.7 15.3 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 S3 12/07/2018 22:51:42 14.66 13.59 13.05 12.71 12.47 12.29 6.7 16.3 B96

C/2017 S3 12/07/2018 22:51:42* 0.03 0.03 0.03 0.02 0.02 0.02 5 3.3 USN

AFRHO LOG

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

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

C/2017 S3 12/07/2018 22:51:42 1.26 0.99 21.93 13.54 7 57 8 1.755 B96

FoCAs 3.53

www.astrosurf.com/cometas-obs

es.groups.yahoo.com/group/Cometas_Obs

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

Af(rho) parameter according to CARA-approach

Af(rho) [cm] vs core distance - data obtained from image with R-Bessel filter