C/2019 T3 (ATLAS)

DEPARTED

Type: Periodic Perihelion date: 2 March 2021 Perihelion distance (q): 5.9 Aphelion distance (Q) : 11,978 Period (years): 463,845 Eccentricity (e): 1.00 Inclination (i): 121.9 JPL orbit diagram COBS lightcurve A 19th magnitude object was discovered in images taken with the 0.5m Schmidt at Mauna Loa on 6 October 2019 by the ATLAS (Asteroid Terrestrial-impact Last Alert System) team. It had been posted on the PCCP as A10gzoN. There were pre- discovery PanSTARRS 1 and 2 images from January. Observations (VEMag = visual equivalent magnitude) Date 10x10 mag Error VEmag Coma ' 24-Nov-19 18.35 0.02 18.1 0.2 30-Nov-19 18.33 0.15 17.9 0.2 20-Dec-19 18.23 0.08 17.9 0.3 27-Dec-19 18.33 0.08 17.7 0.3 16-Feb-20 18.43 0.07 18.0 0.3 18-Sep-20 17.62 0.07 17.2 0.4 07-Oct-20 17.48 0.02 17.0 0.4 21-Nov-20 17.30 0.04 16.9 0.4 07-Dec-20 16.9 0.4 14-Dec-20 17.1 0.4 09-May-21 16.6 0.4 04-Jul-21 16.4 0.4 03-Sep-21 17.1 0.4