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 07/07/2018 23:39:42 13.68 12.93 12.56 12.32 12.15 12.01 42.3 17.6 B96

21P 07/07/2018 23:39:42* 0.02 0.03 0.03 0.03 0.04 0.04 30 3.1 USN

AFRHO LOG

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

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

21P 07/07/2018 23:39:42 0.79 1.35 35.02 12.46 42 112 3 2.050 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 2018.07.08 22:33:07

NET USNO-A2.0

0021P C2018 07 07.97024 21 48 53.96 +54 06 31.2 13.9 R B96

0021P C2018 07 07.97400 21 48 54.65 +54 06 38.7 13.9 R B96

0021P C2018 07 07.97870 21 48 55.56 +54 06 48.4 13.9 R B96

0021P C2018 07 07.98434 21 48 56.64 +54 07 00.1 14.0 R B96

0021P C2018 07 07.98998 21 48 57.72 +54 07 11.6 13.9 R B96

0021P C2018 07 07.99562 21 48 58.79 +54 07 23.2 13.9 R B96

0021P C2018 07 08.00378 21 49 00.32 +54 07 39.9 14.0 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