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Comet C/2020 R4 (ATLAS)  -  23 april 2021

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

http://cara.uai.it

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 2021.04.24 11:10:17

NET Gaia DR2

    CK20R040  C2021 04 23.86598 16 06 47.79 +28 59 06.8          13.2 G      B96

    CK20R040  C2021 04 23.87226 16 06 40.45 +28 59 37.8          13.2 G      B96

    CK20R040  C2021 04 23.87810 16 06 33.57 +29 00 06.6          13.1 G      B96

    CK20R040  C2021 04 23.88279 16 06 28.07 +29 00 29.6          12.5 R      B96

    CK20R040  C2021 04 23.88863 16 06 21.20 +29 00 58.5          12.5 R      B96

----- end -----

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     23/04/2021 20:59:21  12.91  12.39  12.09  11.85  11.65  11.49  43.5  16.6  B96

C/2020 R4     23/04/2021 20:59:21*  0.02   0.03   0.03   0.03   0.03   0.03    38   3.5  Gai

                                                                     AFRHO         LOG

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

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

C/2020 R4     23/04/2021 20:59:21    0.46   1.35  59.47  11.52   44     92     2  1.965  B96

FoCAs 3.66

www.astrosurf.com/cometas-obs

es.groups.yahoo.com/group/Cometas_Obs

Afρ parameter according CARA-approach