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Comet C2021 D2 (ZTF) - 8 oct. 2021

 (ZTF) - 14 june 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 2021.10.10 12:02:31

NET Gaia DR2

    CK21D020  C2021 10 08.88405 15 38 09.89 +64 20 06.7          18.4 G      B96

    CK21D020  C2021 10 08.88901 15 38 10.01 +64 20 04.1          17.6 G      B96

    CK21D020  C2021 10 08.89559 15 38 10.65 +64 20 03.2          17.7 G      B96

----- end -----

COD X02

OBS BRIXIIS Observatory

CATALOG: Gaia DR2 - BAND: G

                                   10x10  20x20  30x30  40x40  50x50  60x60   SNR   SB   COD

COMET         UTC                    +/-    +/-    +/-    +/-    +/-    +/-     N  FWHM  CAT

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

C/2021 D2     08/10/2021 21:20:57  18.49  17.53  17.21  16.73  16.49  16.36   1.5  17.5  B96

C/2021 D2     08/10/2021 21:20:57*  0.09   0.20   0.48   0.31   0.22   0.08     3   3.7  Gai

                                                                     AFRHO         LOG

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

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

C/2021 D2     08/10/2021 21:20:57    3.25   3.17   8.48  18.65    2     36    24  1.551  B96

Observation made with Orion Optics AG16 newton telescope from my backyard, BRIXIIS Observatory, Kruibeke, Belgium

Photometry obtained with FOCAS-II software:

Afρ data according CARA approach

Afρ vs core distance - data obtained from unfiltered CCD-image