C/2021 D2 (ZTF)

DEPARTED

Type: Hyperbolic Perihelion date: 3 February 2022 Perihelion distance (q): 2.9 Aphelion distance (Q) : n/a Period (years): n/a Eccentricity (e): 1.00 Inclination (i): 83.8 JPL orbit diagram COBS lightcurve The Zwicky Transient Facility reported observations of a 19th magnitude possible NEO made on 19 February 2021 with the 1.2m Oschin Schmidt. This was placed on the PCCP as ZTF0KcP and subsequently found to show cometary features by astrometrists. The CBET note that it is the same object as ZTF0Kii reported on 13 March. Observations (VEMag = visual equivalent magnitude) Date 10x10 mag Error VEmag Coma ' 07-May-21 19.5 0.4 06-Jun-21 17.2 0.4 02-Jul-21 17.7 0.4 10-Jul-21 17.4 0.4 10-Aug-21 17.5 0.4 08-Sep-21 17.8 0.4 15-Sep-21 17.4 0.4 12-May-22 19.6 0.4