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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 MPCReport file updated 2023.08.08 10:24:24

NET Gaia DR2

0012P         C2023 08 07.86567 17 50 07.51 +55 09 53.5          16.1 R      B96

0012P         C2023 08 07.88867 17 50 05.59 +55 09 46.9          16.8 G      B96

0012P         C2023 08 07.89685 17 50 04.83 +55 09 45.3          16.7 G      B96

0012P         C2023 08 07.90340 17 50 04.39 +55 09 42.8          16.9 G      B96

Comet 12P/PONS-BROOKS - 7 aug. 2023

Photometric data obtained by use of FOCAS-II software

                                   10x10  20x20  30x30  40x40  50x50  60x60   SNR   SB   COD

COMET         UTC                    +/-    +/-    +/-    +/-    +/-    +/-     N  FWHM  CAT

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

12P           07/08/2023 21:36:11  16.04  15.03  14.38  13.90  13.53  13.21  13.6  18.3  B96

12P           07/08/2023 21:36:11*  0.01   0.02   0.00   0.01   0.00   0.01     2   3.9  Gai

                                                                     AFRHO         LOG

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

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

12P           07/08/2023 21:36:11    3.43   3.69   8.04  16.43   14    415    30  2.618  B96

image taken from BRIXIIS observatory, Kruibeke, Belgium - MPC B96.

telescope: Orion Optics AG16 - astrograph 0.4-m

camera: SBIG STL6303

with CLEAR and Bessel-R (Custom Scientific)

Af(rho) parameter according CARA-approach

Af(rho) vs core distance - data from photometric R-filtered CCD-image