comet 21P/GIACIOBINI-ZINNER

Photometric data obtained by use of FOCAS-II software:

COD B96

CON E. Bryssinck, BRIXIIS Observatory, 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 13/09/2018 09:39:07 11.25 10.34 9.88 9.56 9.32 9.14 32.6 19.4 H06

21P 13/09/2018 09:39:07* 0.02 0.02 0.03 0.03 0.02 0.02 8 3.9 CMC

AFRHO LOG

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

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

21P 13/09/2018 09:39:07 0.39 1.01 70.14 8.91 33 415 13 2.618 H06

FoCAs 3.53

www.astrosurf.com/cometas-obs

es.groups.yahoo.com/group/Cometas_Obs

Astrometry obtained with Astrometrica

COD B96

CON E. Bryssinck, BRIXIIS Observatory, Kruibeke, Belgium [erik.bryssinck@telenet.be]

OBS E.Bryssinck

MEA E.Bryssinck

TEL 0.4-m f/3.8 reflector + CCD

ACK MPCReport file updated 2018.09.30 18:38:16

NET CMC-15

0021P C2018 09 25.11135 06 38 17.49 +08 24 52.2 12.3 R B96

0021P C2018 09 25.11442 06 38 17.98 +08 24 35.4 12.3 R B96

0021P C2018 09 25.11901 06 38 18.65 +08 24 10.1 12.3 R B96

0021P C2018 09 25.12745 06 38 19.90 +08 23 24.1 12.3 R B96

0021P C2018 09 25.13549 06 38 21.04 +08 22 40.2 12.4 R B96

0021P C2018 09 25.14497 06 38 22.44 +08 21 48.7 12.6 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