comet 21P/GIACIOBINI-ZINNER

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

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

21P 18/06/2018 23:23:49 14.14 13.51 13.20 12.99 12.83 12.71 17.3 17.9 B96

21P 18/06/2018 23:23:49* 0.07 0.10 0.09 0.08 0.08 0.08 22 4.2 CMC

AFRHO LOG

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

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

21P 18/06/2018 23:23:49 0.96 1.52 28.64 13.27 17 101 6 2.005 B96

Astrometry obtained with Astrometrica

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 2018.06.19 12:34:47

NET CMC-15

0021P C2018 06 18.96227 21 01 30.19 +43 13 14.8 14.6 R B96

0021P C2018 06 18.96697 21 01 30.72 +43 13 24.1 14.6 R B96

0021P C2018 06 18.97073 21 01 31.13 +43 13 32.3 14.4 R B96

0021P C2018 06 18.97449 21 01 31.60 +43 13 40.5 14.7 R B96

0021P C2018 06 18.97825 21 01 32.07 +43 13 48.8 14.3 R B96

0021P C2018 06 18.98315 21 01 32.64 +43 13 58.4 14.6 R B96

0021P C2018 06 18.98969 21 01 33.38 +43 14 11.9 14.6 R B96

Afρ parameter according to CARA consortium

Afρ-graph (Afρ vs distance to core) with R-Bessel filter

Af(rho) data available via a request to our CARA-coordinator