Comet C/2020 R4 (ATLAS)

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 2021.05.02 11:26:14

NET Gaia DR2

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

CK20R040 C2021 04 30.90105 13 54 55.64 +33 13 52.4 14.2 G B96

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

CK20R040 C2021 04 30.90983 13 54 47.22 +33 13 50.0 14.2 G B96

CK20R040 C2021 04 30.91275 13 54 44.41 +33 13 48.9 14.1 G B96

CK20R040 C2021 05 01.91207 13 39 23.88 +33 05 37.6 14.5 G B96

CK20R040 C2021 05 01.91583 13 39 20.54 +33 05 34.4 14.5 G B96

CK20R040 C2021 05 01.92002 13 39 16.82 +33 05 31.8 14.5 G B96

CK20R040 C2021 05 01.92381 13 39 13.44 +33 05 26.6 14.5 G B96

CK20R040 C2021 05 01.92809 13 39 09.62 +33 05 26.0 14.5 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 01/05/2021 22:07:35 13.78 12.74 12.26 11.94 11.69 11.49 10.9 18.0 B96

C/2020 R4 01/05/2021 22:07:35* 0.02 0.02 0.03 0.03 0.03 0.02 4 3.8 Gai

AFRHO LOG

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

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

C/2020 R4 01/05/2021 22:07:35 0.56 1.43 49.37 11.68 11 130 12 2.115 B96

Afρ parameter according CARA-approach