comet 21P/GIACIOBINI-ZINNER - 2 23:30 UT july 2018

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 02/07/2018 23:37:24 13.63 12.90 12.55 12.31 12.14 12.01 31.3 18.0 B96

21P 02/07/2018 23:37:24* 0.02 0.04 0.04 0.05 0.05 0.06 24 3.8 USN

AFRHO LOG

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

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

21P 02/07/2018 00:14:21 0.84 1.40 32.83 12.61 22 120 5 2.080 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 2018.07.03 21:06:47

0021P C2018 07 02.97025 21 34 01.24 +51 15 50.7 14.0 R B96

0021P C2018 07 02.97589 21 34 02.16 +51 16 02.2 13.9 R B96

0021P C2018 07 02.98059 21 34 02.92 +51 16 12.2 14.0 R B96

0021P C2018 07 02.98530 21 34 03.67 +51 16 21.8 13.9 R B96

0021P C2018 07 02.99113 21 34 04.56 +51 16 33.5 14.0 R B96

0021P C2018 07 03.00094 21 34 06.21 +51 16 54.5 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