Comet C/2019 Y1 (ATLAS) - 18 april 2020

Astrometric data for minor planet center

COD B96 BRIXIIS Observaotry, Kruibeke, Belgium

CON E. Bryssinck

OBS E. Bryssinck

MEA E.Bryssinck

TEL 0.4-m f/6.8 astrograph + CCD

ACK NEOCP G39 file updated 2019.12.23 12:28:11

NET UCAC-4

A10iMHA C2019 12 23.03941 23 44 37.89 -35 40 21.2 18.0 R G39

A10iMHA C2019 12 23.04166 23 44 37.89 -35 40 15.8 17.9 R G39

A10iMHA C2019 12 23.04536 23 44 37.67 -35 40 05.6 17.8 R G39

A10iMHA C2019 12 23.04907 23 44 37.46 -35 39 55.2 18.3 R G39

A10iMHA C2019 12 23.05278 23 44 37.39 -35 39 46.8 17.8 R G39

A10iMHA C2019 12 23.05649 23 44 37.26 -35 39 36.5 17.9 R G39

A10iMHA C2019 12 23.06021 23 44 37.12 -35 39 28.1 18.1 R G39

----- end -----

Af(rho) data according the CARA-approach is available via request to CARA-coordinator

Photometric data obtained from FOCAS-II software

Image taken from BRIXIIS observatory with 0.4-m f/3.8 telescope

COD B96

OBS BRIXIIS Observatory

CATALOG: Gaia DR2 - BAND: G

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

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

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

C/2019 Y1 18/04/2020 22:18:39 12.60 11.58 11.08 10.73 10.47 10.27 20.0 16.1 B96

C/2019 Y1 18/04/2020 22:18:39* 0.03 0.02 0.03 0.02 0.02 0.02 12 3.7 Gai

AFRHO LOG

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

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

C/2019 Y1 18/04/2020 22:18:39 1.14 1.04 24.19 11.40 20 375 19 2.574 B96

Af(rho) according CARA-approach

Af(rho) vs. core distance (data obtained from images with photometric R filter