comet 57P/DU TOIT-NEUJMIN-DELPORTE

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

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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