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 02/08/2018 23:15:21 11.90 11.06 10.63 10.34 10.14 9.99 33.7 17.6 B96

21P 02/08/2018 23:15:21* 0.02 0.03 0.03 0.02 0.02 0.02 36 3.1 USN

AFRHO LOG

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

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

21P 02/08/2018 23:15:21 0.58 1.15 47.72 10.18 34 360 11 2.556 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 02.95542 00 17 54.12 +65 59 06.7 12.6 R B96

0021P C2018 08 02.96079 00 17 57.12 +65 59 11.1 13.0 R B96

0021P C2018 08 02.96156 00 17 57.56 +65 59 11.8 13.1 R B96

0021P C2018 08 02.96615 00 18 00.18 +65 59 15.4 13.0 R B96

0021P C2018 08 02.97076 00 18 02.74 +65 59 19.2 13.1 R B96

0021P C2018 08 02.97535 00 18 05.33 +65 59 23.0 13.0 R B96

0021P C2018 08 02.98082 00 18 08.38 +65 59 27.4 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