comet 21P/GIACIOBINI-ZINNER

Photometric data obtained by use of FOCAS-II software:

COD B96

CON E. Bryssinck, BRIXIIS Observatory-Eyckensbeekstr. 2, 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 17/08/2018 23:07:16 11.08 10.19 9.72 9.42 9.20 9.04 40.2 17.4 B96

21P 17/08/2018 23:07:16* 0.06 0.05 0.06 0.06 0.06 0.06 42 3.0 USN

AFRHO LOG

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

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

21P 17/08/2018 23:07:16 0.47 1.07 58.18 9.02 40 608 15 2.784 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 2018.08.19 12:11:15

NET USNO-A2.0

0021P C2018 08 17.94968 03 01 02.40 +63 27 12.2 11.4 R B96

0021P C2018 08 17.95324 03 01 04.70 +63 27 04.3 11.4 R B96

0021P C2018 08 17.95681 03 01 06.95 +63 26 56.5 11.5 R B96

0021P C2018 08 17.96095 03 01 09.64 +63 26 47.2 11.4 R B96

0021P C2018 08 17.96510 03 01 12.32 +63 26 38.1 11.5 R B96

0021P C2018 08 17.96927 03 01 15.00 +63 26 28.7 11.5 R B96

0021P C2018 08 17.97369 03 01 17.90 +63 26 18.7 11.6 R B96

0021P C2018 08 17.98036 03 01 22.16 +63 26 03.9 11.8 R B96

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Afρ parameter according to CARA consortium

Afρ-graph (Afρ vs distance to core) with R-Bessel filter and I-Bessel filter

Af(rho) data available via a request to our CARA-coordinator