SPACEWATCH® Contributes to a Practice Impactor Campaign
Sept. 23, 2017
Astrometry and photometry of close approacher 2012 TC4.
2017 August-September: SPACEWATCH® provided astrometry and lightcurve photometry of small, closely-approaching NEO 2012 TC4 which was the subject of a world-wide observing campaign: See the 2012 TC4 Observing Campaign.