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 08/08/2018 21:49:47 11.40 10.55 10.11 9.81 9.61 9.45 36.0 17.6 B96

21P 08/08/2018 21:49:47* 0.01 0.01 0.01 0.01 0.01 0.01 33 3.2 USN

AFRHO LOG

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

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

21P 08/08/2018 21:49:47 0.53 1.11 51.60 9.56 36 509 14 2.707 B96

Astrometry obtained with Astrometrica

COD B96

CON E. Bryssinck, BRIXIIS Observatory-Eyckensbeekstr. 2, 9150 Kruibeke, Belgium

OBS E.Bryssinck

MEA E.Bryssinck

TEL 0.4-m f/3.8 astrograph + CCD

ACK MPCReport file updated 2018.08.09 15:20:42

NET USNO-A2.0

0021P C2018 08 08.89725 01 19 22.80 +66 29 42.2 12.6 R B96

0021P C2018 08 08.90261 01 19 26.41 +66 29 41.1 12.6 R B96

0021P C2018 08 08.90798 01 19 29.93 +66 29 40.4 12.6 R B96

0021P C2018 08 08.91258 01 19 33.04 +66 29 39.6 12.6 R B96

0021P C2018 08 08.91718 01 19 36.08 +66 29 39.0 12.6 R B96

0021P C2018 08 08.92264 01 19 39.76 +66 29 38.1 12.7 R B96

0021P C2018 08 08.92847 01 19 43.56 +66 29 37.3 13.2 V 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