Comet C/2019 Y4 (ATLAS) - 24 april 2020

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 2020.04.25 11:15:25

NET Gaia DR2

CK19Y04e C2020 04 24.90730 05 41 47.97 +62 41 12.7 16.0 R B96

CK19Y04e C2020 04 24.92421 05 41 44.03 +62 40 46.7 16.7 G B96

CK19Y04e C2020 04 24.90638 05 41 48.35 +62 41 13.5 16.5 R B96

CK19Y04e C2020 04 24.91488 05 41 46.19 +62 41 00.2 16.8 G B96

CK19Y04e C2020 04 24.91955 05 41 45.11 +62 40 53.8 16.7 G B96

CK19Y04e C2020 04 24.92701 05 41 43.31 +62 40 42.9 16.7 G B96

CK19Y04e C2020 04 24.92983 05 41 42.64 +62 40 40.0 16.7 G B96

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

Photometric data obtained from FOCAS-II software

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 Y4e 24/04/2020 22:08:51 15.57 14.33 7.9 17.8 B96

C/2019 Y4e 24/04/2020 22:08:51* 0.02 0.01 4 3.0 Gai

AFRHO LOG

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

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

C/2019 Y4e Not enough boxes

FoCAs 3.66

www.astrosurf.com/cometas-obs

es.groups.yahoo.com/group/Cometas_Obs

Afρ parameter according CARA-Approach

Afρ [cm] vs. core distance (in km) - image with Bessel R filter