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 21/07/2018 22:20:21 12.98 12.19 11.79 11.53 11.35 11.20 44.7 17.7 B96

21P 21/07/2018 22:20:21* 0.01 0.04 0.04 0.04 0.05 0.04 8 3.3 USN

AFRHO LOG

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

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

21P 21/07/2018 22:20:21 0.67 1.23 41.06 11.53 45 162 4 2.210 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 2018.07.22 16:28

NET Gaia DR2

0021P C2018 07 21.91263 22 48 15.74 +61 31 20.8 13.3 R B96

0021P C2018 07 21.91733 22 48 17.28 +61 31 29.0 13.3 R B96

0021P C2018 07 21.92214 22 48 18.85 +61 31 37.3 13.3 R B96

0021P C2018 07 21.92778 22 48 20.74 +61 31 47.1 13.3 R B96

0021P C2018 07 21.93341 22 48 22.65 +61 31 57.1 13.3 R B96

0021P C2018 07 21.93905 22 48 24.58 +61 32 07.4 13.3 R B96

0021P C2018 07 21.94470 22 48 26.41 +61 32 17.2 13.3 R B96

0021P C2018 07 21.94940 22 48 28.01 +61 32 25.5 13.3 R B96

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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