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Comet C/2020 S3  (ERASMUS) -  21 july 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 2021.07.22 12:00:03

NET Gaia DR2

    CK20S030  C2021 07 21.02645 00 17 51.65 +20 05 20.9          17.2 G      B96

    CK20S030  C2021 07 21.03951 00 17 51.32 +20 05 22.2          18.0 G      B96

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/2020 S3     21/07/2021 00:47:29  17.30  16.92  16.73                        6.5  16.7  B96

C/2020 S3     21/07/2021 00:47:29*  0.54   0.81   0.71                          2   4.2  Gai

                                                                     AFRHO         LOG

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

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

C/2020 S3     21/07/2021 00:47:29    3.25   3.65   8.49  17.38    7    151    23  2.178  B96

Af(rho) data according CARA-approach

Af(rho) (cm) vs. core distance (km) - data from unfiltered CCD-image