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Comet 57P/DU TOIT-NEUJMIN-DELPORTE - 20 oct. 2021

57P           20/09/2015 23:04:05*  0.01   0.01   0.02   0.02   0.03   0.08     2   3.8  USN

Astrometry for Minor Planet Center

COD X02

CON E. Bryssinck, Telescope Live Observatory, Rio Hurtado, Chile

OBS E. Bryssinck, M. Rocchetto, E. Guido, M. Fulle

OBS G. Milani, C. Nassef, G. Savini, A. Valvasori

MEA E. Bryssinck

TEL 0.61-m f/6.5 reflector + CCD

ACK MPCReport file updated 2021.10.21 16:49:07

NET Gaia DR2

0057P         C2021 10 20.01161 18 14 02.75 -21 01 42.6          14.0 G      X02

0057P         C2021 10 20.01715 18 14 03.67 -21 01 42.6          13.7 G      X02

0057P         C2021 10 20.02265 18 14 04.58 -21 01 42.9          14.9 G      X02

0057P         C2021 10 20.03146 18 14 06.00 -21 01 42.9          14.0 G      X02

----- end -----

Photometry data from FOCAS-II

COD X02

OBS BRIXIIS Observatory

CATALOG: Gaia DR2 - BAND: G

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

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

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

57P           20/10/2021 00:34:12  13.41  12.73  12.49  12.34  12.26  12.20  24.6  17.4  X02

57P           20/10/2021 00:34:12*  0.02   0.04   0.01   0.03   0.04   0.05     3   2.8  Gai

                                                                     AFRHO         LOG

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

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

57P           20/10/2021 00:34:12    1.85   1.72  14.91  13.04   25    593    24  2.773  X02

Af(rho) parameter according CARA-approach

Af(rho) vs. cored distance - data from Lum filtered image