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Astrometry computed with Astrometricaand FoCAs II COD C23 CATALOG: Gaia DR2 - BAND: G 10x10 20x20 30x30 40x40 50x50 60x60 SNR SB COD OBJECT DATE TIME +/- +/- +/- +/- +/- +/- N FWHM CAT ------------ ---------- -------- ----- ----- ----- ----- ----- ----- ---- ---- --- C/2021 S1 30/09/2021 02:53:27 18.83 18.57 18.66 9.3 22.4 C23 C/2021 S1 30/09/2021 02:53:27* 0.15 0.17 0.17 4 4.0 Gai C/2021 S1 23/03/2022 21:49:31 18.38 18.39 18.49 18.57 5.5 21.6 C23 C/2021 S1 23/03/2022 21:49:31* 0.03 0.08 0.07 0.30 3 4.8 Gai C/2021 S1 20/01/2023 23:37:09 18.67 17.81 17.64 17.48 17.33 17.18 4.3 21.9 C23 C/2021 S1 20/01/2023 23:37:09* 0.07 0.10 0.01 0.05 0.03 0.01 3 4.4 Gai C/2021 S1 13/02/2023 21:21:41 19.21 18.61 18.40 18.24 18.13 18.17 5.3 22.4 C23 C/2021 S1 13/02/2023 21:21:41* 0.07 0.14 0.17 0.16 0.26 0.55 4 3.8 Gai
AFRHO LOG COMET UTC DELTA r BOX " MAG RSR CM +/- AFRHO OBS ------------ ------------------- ----- ----- ----- ----- --- ----- ---- ----- --- C/2021 S1 30/09/2021 02:53:27 5.49 6.20 5.02 18.92 9 302 33 2.481 C23 C/2021 S1 23/03/2022 21:49:31 6.08 6.12 4.54 18.25 6 670 122 2.826 C23 C/2021 S1 20/01/2023 23:37:09 5.54 6.52 4.98 19.09 4 289 67 2.461 C23 C/2021 S1 13/02/2023 21:21:41 5.70 6.58 4.83 19.55 5 204 38 2.310 C23 FoCAs 3.70 www.astrosurf.com/cometas-obs es.groups.yahoo.com/group/Cometas_Obs