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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 18.94901 17 17 45.59 +40 35 15.6          14.8 R      B96

    CK17K020  C2021 07 18.96050 17 17 45.03 +40 35 10.7          14.6 R      B96

    CK17K020  C2021 07 18.97535 17 17 44.42 +40 35 02.2          14.8 R      B96

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Comet C/2017 K2 (PANSTARRS) -  18 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     18/07/2021 23:05:32  14.84  14.11  13.72  13.46  13.30  13.19  21.1  18.1  B96

C/2017 K2     18/07/2021 23:05:32*  0.02   0.02   0.03   0.02   0.02   0.02     2   3.9  Gai

                                                                     AFRHO         LOG

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

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

C/2017 K2     18/07/2021 23:05:32    5.43   5.83   5.08  15.42   21   6524   309  3.815  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 18.96  k 12.7 AQ 40.0L 3B040   2.0               ICQ XX BRY04I     C 2.00mST0 K6F KPR 5 U1*0.03       1.2s 1.2 ;Comet Alt.:68.0 Calculated mags:12.8,12.7,12.7,12.7,12.7,12.7,12.8,12.8,12.7,12.7,12.8,12.8,12.7,12.8,12.8,12.8

CometObs format:

C/2017 K2 (PANSTARRS):

2021  Jul.  18.96  UT: m1=12.7 CCD-R, Dia.=2.0', 40.0-cm Newtonian reflector .

[Comet Alt.:68.0 Calculated mags:12.8,12.7,12.7,12.7,12.7,12.7,12.8,12.8,12.7,12.7,12.8,12.8,12.7,12.8,12.8,12.8

] (Erik Bryssinck, BRIXIIS)

Afrho output:

C/2017 K2, 2459414.47431, 5.836, 5.43, 9.49, R, 14648, 7309.5, 86.7

C/2017 K2, 2459414.47431, 5.836, 5.43, 9.49, R, 24414, 8252.7, 97.9

C/2017 K2, 2459414.47431, 5.836, 5.43, 9.49, R, 34179, 8444.9, 100.2

C/2017 K2, 2459414.47431, 5.836, 5.43, 9.49, R, 43945, 8393.9, 99.6

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