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Comet C2021 D2 (ZTF) - 18 july 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 2021.07.19 14:54:23

NET Gaia DR2

    CK21D020 KC2021 07 18.90685 19 18 07.46 +73 12 47.2          17.8 R      B96

    CK21D020 KC2021 07 18.91507 19 18 04.73 +73 12 53.0          17.8 R      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     18/07/2021 21:50:36  18.45  18.16  18.18                        2.2  17.6  B96

C/2021 D2     18/07/2021 21:50:36*  0.21   0.38   0.30                          3   4.2  Gai

                                                                     AFRHO         LOG

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

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

C/2021 D2     18/07/2021 21:50:36    3.47   3.54   7.94  18.48    2     59    27  1.771  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 R-filtered CCD-image