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

CK19Y04a C2020 04 05.84780 07 20 51.88 +68 02 24.4 16.7 RVEJ016B96

CK19Y04a C2020 04 05.85196 07 20 50.19 +68 02 24.4 14.7 NcEJ016B06

CK19Y04a C2020 04 05.85616 07 20 48.46 +68 02 22.2 14.6 NcEJ016B06

CK19Y04a C2020 04 05.85938 07 20 47.05 +68 02 18.4 14.3 GVEJ016B96

CK19Y04a C2020 04 05.86752 07 20 43.75 +68 02 13.6 14.3 GVEJ016B96

CK19Y04a C2020 04 05.86991 07 20 42.96 +68 02 13.8 14.6 NcEJ016B06

CK19Y04a C2020 04 05.87728 07 20 40.08 +68 02 08.0 14.3 GVEJ016B96

----- end -----

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 Y4a 05/04/2020 20:49:13 13.64 12.61 12.08 11.72 11.45 11.24 12.8 17.7 B96

C/2019 Y4a 05/04/2020 20:49:13* 0.02 0.02 0.02 0.01 0.01 0.01 13 3.7 Gai

AFRHO LOG

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

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

C/2019 Y4a 05/04/2020 20:49:13 1.03 1.38 26.79 12.27 13 241 19 2.382 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

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

Afρ [cm] vs. core distance (in km) - data form unfiltered image