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Comet 21P/GIACOBINI-ZINNER - 8 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           08/07/2018 23:27:54  13.62  12.86  12.44  12.14  11.93  11.79  40.4  18.6  B96

21P           08/07/2018 23:27:54*  0.01   0.01   0.13   0.19   0.20   0.20    19   3.4  USN

                                                                     AFRHO         LOG

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

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

21P           08/07/2018 23:27:54    0.78   1.34  35.40  12.29   40    127     3  2.104  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 2018.07.09 12:44:38

NET USNO-A2.0

0021P         C2018 07 08.96737 21 52 10.01 +54 40 11.0          13.9 R      B96

0021P         C2018 07 08.97113 21 52 10.76 +54 40 18.7          13.9 R      B96

0021P         C2018 07 08.97490 21 52 11.49 +54 40 26.4          13.9 R      B96

0021P         C2018 07 08.98053 21 52 12.59 +54 40 37.9          13.9 R      B96

0021P         C2018 07 08.98617 21 52 13.68 +54 40 49.4          13.9 R      B96

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