comet 103P/Hartley - 7 aug. 2023

Image taken with 0.4-m f/308 Orion Optics AG 16 from BRIXIIS Observatory, Kruibeke, Belgium

Astrometric data for MPC

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

0103P C2023 08 07.94120 00 34 19.16 +32 47 09.0 16.1 R B96

0103P C2023 08 07.96015 00 34 23.52 +32 47 44.1 16.8 G B96

0103P C2023 08 07.97522 00 34 26.86 +32 48 11.2 16.8 G B96

0103P C2023 08 07.98745 00 34 29.56 +32 48 33.0 16.7 G B96

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Photometric data obtained from FOCAS-II software

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

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

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

103P 07/08/2023 23:33:07 16.32 15.58 15.04 14.67 14.41 14.22 11.8 17.6 B96

103P 07/08/2023 23:33:07* 0.00 0.01 0.01 0.00 0.02 0.03 2 3.1 Gai

AFRHO LOG

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

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

103P 07/08/2023 23:33:07 0.64 1.38 42.85 14.61 12 11 1 1.034 B96

Af(rho) data according to CARA-approach

Af(rho) vs core distance - data from photometric R-filter