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 13/07/2018 23:26:24 13.01 12.23 11.84 11.59 11.42 11.28 39.9 18.0 B96

21P 13/07/2018 23:26:24* 0.01 0.02 0.02 0.03 0.03 0.03 31 3.3 USN

AFRHO LOG

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

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

21P 13/07/2018 23:26:24 0.74 1.30 37.43 11.68 40 187 5 2.272 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 2018.07.15 10:44:56

NET USNO-A2.0

0021P C2018 07 13.96028 22 10 25.22 +57 25 46.3 13.3 R B96

0021P C2018 07 13.96498 22 10 26.34 +57 25 55.7 13.3 R B96

0021P C2018 07 13.96968 22 10 27.45 +57 26 04.8 13.3 R B96

0021P C2018 07 13.97531 22 10 28.81 +57 26 16.1 13.3 R B96

0021P C2018 07 13.98095 22 10 30.08 +57 26 26.9 13.3 R B96

0021P C2018 07 13.98659 22 10 31.41 +57 26 38.1 13.3 R B96

0021P C2018 07 13.99708 22 10 33.97 +57 26 59.3 13.4 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