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 05/07/2018 23:22:05 13.85 13.11 12.75 12.52 12.35 12.21 43.9 18.3 B96

21P 05/07/2018 23:22:05* 0.01 0.01 0.01 0.01 0.01 0.01 4 3.2 USN

AFRHO LOG

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

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

21P 05/07/2018 23:22:05 0.80 1.37 34.26 12.68 44 99 2 1.994 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 2018.07.06 21:06:47

0021P C2018 07 05.97038 21 42 39.84 +52 58 33.5 14.1 R B96

0021P C2018 07 05.97133 21 42 40.01 +52 58 35.5 14.1 R B96

0021P C2018 07 05.97227 21 42 40.16 +52 58 37.3 14.1 R B96

0021P C2018 07 05.97321 21 42 40.36 +52 58 39.5 14.1 R B96

0021P C2018 07 05.97414 21 42 40.53 +52 58 41.5 14.1 R B96

0021P C2018 07 05.97509 21 42 40.69 +52 58 43.3 14.1 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