C/2022 A3 (Lemmon-ATLAS)

DEPARTED

Type: Periodic Perihelion date: 28 September 2023 Perihelion distance (q): 3.7 Aphelion distance (Q) : 1,959 Period (years): 30,744 Eccentricity (e): 1.00 Inclination (i): 88.4 JPL orbit diagram COBS lightcurve The ATLAS (Asteroid Terrestrial-impact Last Alert System) team discovered a 19th magnitude object in images taken with the 0.5m Schmidt at Mauna Loa on 1 March 2022. It was posted on the PCCP as A10GhLU. It was then linked to isolated tracklets reported from Mt Lemmon from 10 January into February, and earlier prediscovery Mt Lemmon images from April and December 2021. Observations (VEMag = visual equivalent magnitude) Date 10x10 mag Error VEmag Coma ' 30-Mar-22 19.6 0.4 25-Apr-22 19.8 0.4 10-Jun-22 19.3 0.4 25-Jan-23 17.10 0.04 17.1 0.4 18-Feb-23 16.7 0.4 22-Feb-23 16.79 0.02 16.7 0.4 27-Feb-23 16.8 0.4 10-Mar-23 16.87 0.02 16.7 0.4 15-Mar-23 16.91 0.03 16.9 0.4 22-Mar-23 16.95 0.07 16.9 0.4 07-Apr-23 17.3 0.4 23-Apr-23 17.3 0.4 06-May-23 18.1 0.4