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 06/08/2018 22:55:13 11.50 10.63 10.19 9.90 9.69 9.53 30.1 17.5 B96

21P 06/08/2018 22:55:13* 0.01 0.01 0.01 0.01 0.01 0.01 32 3.3 USN

AFRHO LOG

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

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

21P 06/08/2018 22:55:13 0.55 1.12 50.28 9.67 30 495 16 2.695 B96

Astrometry obtained with Astrometrica

COD B96

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

OBS E.Bryssinck

MEA E.Bryssinck T

EL 0.4-m f/3.8 astrograph + CCD

ACK MPCReport file updated 2018.08.08 12:12:40

NET USNO-A2.0

0021P C2018 08 06.94127 00 58 05.71 +66 30 33.6 12.8 R B96

0021P C2018 08 06.94510 00 58 08.12 +66 30 34.4 12.8 R B96

0021P C2018 08 06.94969 00 58 11.10 +66 30 35.5 12.9 R B96

0021P C2018 08 06.95430 00 58 13.98 +66 30 36.2 12.8 R B96

0021P C2018 08 06.95889 00 58 16.96 +66 30 37.2 12.8 R B96

0021P C2018 08 06.96349 00 58 19.80 +66 30 38.5 12.9 R B96

0021P C2018 08 06.96947 00 58 23.67 +66 30 39.5 13.0 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