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Astrometric data for minor planet center

COD B96

CON E. Bryssinck, BRIXIIS Observatory, 9150 Kruibeke , Belgium

OBS E. Bryssinck

MEA E. Bryssinck

TEL 0.4-m f/3.8 reflector + CCD ACK

ACK MPCReport file updated 2021.07.19 14:54:23

NET Gaia DR2

    CK17K020  C2021 07 17.88950 17 18 35.24 +40 43 51.4          14.8 R      B96

    CK17K020  C2021 07 17.89206 17 18 35.16 +40 43 49.8          14.7 R      B96

    CK17K020  C2021 07 17.89863 17 18 34.80 +40 43 47.0          14.7 R      B96

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Comet C/2017 K2 (PANSTARRS) -  17 july 2021

Photometric data obtained from 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

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

C/2017 K2     17/07/2021 21:23:20  14.82  14.04  13.67  13.42  13.25  13.15  22.2  18.0  B96

C/2017 K2     17/07/2021 21:23:20*  0.02   0.00   0.01   0.02   0.01   0.01     3   3.6  Gai

                                                                     AFRHO         LOG

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

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

C/2017 K2     17/07/2021 21:23:20    5.43   5.84   5.08  15.39   22   6751   304  3.829  B96

FoCAs 3.61

www.astrosurf.com/cometas-obs

es.groups.yahoo.com/group/Cometas_Obs

Data obtained from KOPR software (by Jakub Černý)

ICQ Code:

   2017K2  2021 07 17.90  k 12.8 AQ 40.0L 3a600   2.0               ICQ XX BRY04I     C 2.00mST0 K6F KPR 5 U1*0.01       1.2s 1.2 ;Comet Alt.:79.4 Calculated mags:12.8,12.8,12.8,12.8,12.8,12.7,12.8,12.8,12.8,12.8,12.8,12.7,12.7,12.8,12.8,12.8,12.8,12.7

CometObs format:

C/2017 K2 (PANSTARRS):

2021  Jul.  17.90  UT: m1=12.8 CCD-R, Dia.=2.0', 40.0-cm Newtonian reflector .

[Comet Alt.:79.4 Calculated mags:12.8,12.8,12.8,12.8,12.8,12.7,12.8,12.8,12.8,12.8,12.8,12.7,12.7,12.8,12.8,12.8,12.8,12.7

] (Erik Bryssinck, BRIXIIS)

Afrho output:

C/2017 K2, 2459413.38958, 5.845, 5.434, 9.46, R, 14659, 3010.4, 20.8

C/2017 K2, 2459413.38958, 5.845, 5.434, 9.46, R, 24432, 5565.5, 38.4

C/2017 K2, 2459413.38958, 5.845, 5.434, 9.46, R, 34204, 7235.8, 49.9

C/2017 K2, 2459413.38958, 5.845, 5.434, 9.46, R, 43977, 7400.5, 51.1

Af(rho) data according CARA approach

Af(rho) plot (vs. core distance in km) obtained from photometric R filtered CCD-images

Afρ data available by request to the cara-coordinator