Comet C/2019 Y4 (ATLAS)

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 2020.04.10 00:52:31

NET Gaia DR2

CK19Y04b C2020 04 09.83086 06 55 49.65 +67 18 46.0 14.4 G B96

CK19Y04b C2020 04 09.83458 06 55 48.43 +67 18 43.2 15.3 G B96

CK19Y04b C2020 04 09.83832 06 55 46.78 +67 18 39.7 16.8 G B96

CK19Y04b C2020 04 09.84206 06 55 45.54 +67 18 37.3 15.3 G B96

CK19Y04b C2020 04 09.84580 06 55 44.05 +67 18 34.1 15.3 G B96

CK19Y04b C2020 04 09.84954 06 55 42.72 +67 18 31.1 15.3 G B96

CK19Y04b C2020 04 09.85328 06 55 41.41 +67 18 27.8 15.4 G B96

CK19Y40b C2020 04 09.83086 06 55 48.03 +67 18 48.6 G B96

CK19Y40b C2020 04 09.83458 06 55 46.57 +67 18 45.8 G B96

CK19Y40b C2020 04 09.84206 06 55 43.80 +67 18 39.4 G B96

CK19Y40b C2020 04 09.84580 06 55 42.56 +67 18 36.1 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 Y4b 09/04/2020 20:12:34 14.41 13.19 12.60 12.20 11.91 11.67 6.4 18.0 B96

C/2019 Y4b 09/04/2020 20:12:34* 0.02 0.02 0.03 0.03 0.03 0.03 7 3.1 Gai

AFRHO LOG

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

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

C/2019 Y4b 09/04/2020 20:12:34 1.02 1.31 27.13 12.81 6 128 20 2.106 B96

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