P/2014 L2 (NEOWISE)

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Type: Periodic Perihelion date: 15 July 2014 Perihelion distance (q): 2.2 Aphelion distance (Q) : 10.4 Period (years): 15.9 Eccentricity (e): 0.65 Inclination (i): 5.2 JPL orbit diagram COBS lightcurve Rachel Stevenson reported a probable comet in NEOWISE spacecraft images from 7 June 2014. Follow-up ground-based observations confirmed the comet at 16th magnitude. It approached to within 0.01 au of Saturn in July 2009. Observations (VEMag = visual equivalent magnitude) Date 10x10 mag Error VEmag Coma ' 03-Jul-14 15.83 0.02 14.2 0.3 12-Jul-14 15.82 0.06 13.6 0.3 21-Jul-14 15.84 0.02 13.7 0.3 28-Jul-14 15.83 0.02 13.8 0.4 04-Aug-14 15.88 0.01 13.8 0.3 20-Aug-14 15.97 0.02 13.5 0.4 06-Sep-14 15.88 0.05 13.3 0.4 13-Sep-14 15.78 0.04 13.4 0.6 20-Sep-14 15.71 0.01 13.1 0.5 28-Sep-14 15.96 0.03 13.4 0.6 11-Oct-14 16.26 0.02 13.3 0.2 16-Oct-14 16.38 0.02 13.5 0.4 21-Oct-14 16.61 0.03 13.6 0.4 27-Oct-14 16.80 0.03 13.4 0.5 09-Nov-14 17.12 0.07 13.8 0.3 16-Nov-14 17.40 0.04 14.5 0.4 21-Nov-14 17.53 0.06 14.9 0.3 12-Dec-14 17.84 0.05 15.1 0.2 17-Dec-14 18.12 0.09 15.3 0.2