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 03/08/2018 23:23:54 11.93 11.06 10.62 10.33 10.13 9.97 31.1 17.8 B96

21P 03/08/2018 23:23:54* 0.01 0.01 0.01 0.01 0.01 0.01 28 3.2 USN

AFRHO LOG

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

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

21P 03/08/2018 23:23:54 0.57 1.14 48.34 10.15 31 356 11 2.551 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 2018.08.05 11:52:17

NET USNO-A2.0

0021P C2018 08 03.96305 00 27 35.75 +66 10 48.9 13.1 R B96

0021P C2018 08 03.96688 00 27 37.95 +66 10 51.3 13.1 R B96

0021P C2018 08 03.97149 00 27 40.66 +66 10 54.4 13.2 R B96

0021P C2018 08 03.97608 00 27 43.30 +66 10 57.6 13.1 R B96

0021P C2018 08 03.98068 00 27 46.01 +66 11 00.8 13.2 R B96

0021P C2018 08 03.98527 00 27 48.67 +66 11 03.7 13.2 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