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 31/08/2018 23:08:17 10.91 9.94 9.45 9.13 8.91 8.74 25.2 16.0 B96

21P 31/08/2018 23:08:17* 0.04 0.03 0.03 0.04 0.04 0.04 46 3.5 CMC

AFRHO LOG

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

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

21P 31/08/2018 23:08:17 0.41 1.02 67.74 8.52 25 648 26 2.812 B96

Astrometry obtained with Astrometrica

COD B96

CON E. Bryssinck, BRIXIIS Observatory-Eyckensbeekstr. 2, 9150 Kruibeke, OBS E.Bryssinck

MEA E.Bryssinck

TEL 0.4-m f/3.8 astrograph + CCD

ACK MPCReport file updated 2018.09.01 18:13:25

NET CMC-15

0021P C2018 08 31.94787 05 00 42.96 +48 21 07.8 11.4 R B96

0021P C2018 08 31.95144 05 00 44.33 +48 20 48.9 11.4 R B96

0021P C2018 08 31.95499 05 00 45.66 +48 20 30.4 11.4 R B96

0021P C2018 08 31.95989 05 00 47.59 +48 20 04.8 11.5 R B96

0021P C2018 08 31.96602 05 00 49.86 +48 19 33.5 11.6 R B96

0021P C2018 08 31.97139 05 00 51.98 +48 19 04.9 11.5 R B96

0021P C2018 08 31.97856 05 00 54.69 +48 18 27.6 11.6 R B96

0021P C2018 08 31.98617 05 00 57.66 +48 17 47.4 11.7 R B96

----- end -----

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