Comet C/2020 R4 (ATLAS) - 30 april 2021

0 april 2021

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

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 2021.05.01 17:44:08

NET Gaia DR2

CK20R040 C2021 04 30.89688 13 54 59.69 +33 13 53.6 14.2 G B96

CK20R040 C2021 04 30.90022 13 54 56.47 +33 13 52.7 14.2 G B96

CK20R040 C2021 04 30.90315 13 54 53.66 +33 13 52.1 14.2 G B96

CK20R040 C2021 04 30.90565 13 54 51.24 +33 13 51.2 14.2 G B96

CK20R040 C2021 04 30.90816 13 54 48.81 +33 13 50.8 14.2 G B96

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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/2020 R4 30/04/2021 21:40:02 13.58 12.58 12.07 11.74 11.50 11.31 15.5 18.1 B96

C/2020 R4 30/04/2021 21:40:02* 0.01 0.02 0.02 0.02 0.02 0.02 5 3.2 Gai

AFRHO LOG

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

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

C/2020 R4 30/04/2021 21:40:02 0.54 1.42 51.21 11.45 16 148 10 2.169 B96

Afρ parameter according CARA-approach