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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 2023.08.04 17:08:34

NET Gaia DR2

0012P         C2023 08 03.85770 17 55 53.49 +55 27 04.1          16.2 R      B96

0012P         C2023 08 03.87531 17 55 51.90 +55 27 00.1          16.8 G      B96

0012P         C2023 08 03.89820 17 55 49.86 +55 26 55.0          16.8 G      B96

0012P         C2023 08 03.92273 17 55 47.63 +55 26 49.6          16.8 G      B96

----- end -----

Comet 12P/PONS-BROOKS - 3 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           03/08/2023 21:34:11  15.85  14.76  14.07  13.56  13.17  12.85  14.0  18.3  B96

12P           03/08/2023 21:34:11*  0.01   0.02   0.00   0.00   0.00   0.01     3   3.1  Gai

                                                                     AFRHO         LOG

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

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

12P           03/08/2023 21:34:11    3.46   3.74   7.98  16.27   14    500    36  2.699  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