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Comet 21P/GIACOBINI-ZINNER - 22 aug. 2018

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           22/08/2018 21:23:39  11.25  10.35   9.86   9.55   9.33   9.16  40.9  16.5  B96

21P           22/08/2018 21:23:39*  0.01   0.01   0.01   0.01   0.01   0.01    20   3.3  USN

                                                                     AFRHO         LOG

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

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

21P           22/08/2018 21:23:39    0.45   1.05  61.87   9.07   41    494    12  2.694  B96

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-Eyckensbeekstr. 2, 9150 Kruibeke, Belgium,

OBS E.Bryssinck

MEA E.Bryssinck

TEL 0.4-m f/3.8 astrograph + CCD

ACK MPCReport file updated 2018.08.24 23:20:00

NET USNO-A2.0

0021P         C2018 08 22.88579 03 50 30.32 +59 29 58.5          11.7 R      B96

0021P         C2018 08 22.89112 03 50 33.32 +59 29 40.3          11.7 R      B96

0021P         C2018 08 22.89528 03 50 35.64 +59 29 26.2          11.7 R      B96

0021P         C2018 08 22.91896 03 50 48.87 +59 28 05.4          11.6 R      B96

0021P         C2018 08 22.92510 03 50 52.37 +59 27 43.8          11.6 R      B96

0021P         C2018 08 22.93046 03 50 55.35 +59 27 25.7          11.7 R      B96

0021P         C2018 08 22.93659 03 50 58.75 +59 27 04.8          11.7 R      B96

0021P         C2018 08 22.94196 03 51 01.74 +59 26 46.5          11.7 R      B96

0021P         C2018 08 22.94758 03 51 04.84 +59 26 27.8          11.9 R      B96

0021P         C2018 08 22.95425 03 51 08.63 +59 26 04.4          11.9 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