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Comet C2021 D2 (ZTF) - 15 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 2021.10.19 11:32:22

NET Gaia DR2

    CK21D020  C2021 10 15.82436 15 38 41.52 +63 30 46.5          18.0 G      B96

    CK21D020  C2021 10 15.82767 15 38 41.38 +63 30 44.8          18.0 G      B96

    CK21D020  C2021 10 15.83264 15 38 41.17 +63 30 42.5          18.4 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     15/10/2021 19:55:25  18.13  17.41  17.32  17.41  17.36  17.34   2.3  17.5  B96

C/2021 D2     15/10/2021 19:55:25*  0.17   0.14   0.05   0.02   0.13   0.05     2   4.0  Gai

                                                                     AFRHO         LOG

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

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

C/2021 D2     15/10/2021 19:55:25    3.22   3.15   8.55  17.99    2     63    27  1.800  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