Comets - 198P/ODAS - 0198P
Type Periodic Perihelion Date 13 December 2018 Perihelion Distance (q) 2.0 Aphelion Distance (Q) 5.2 Period (Years)   6.8 Eccentricity (e)   0.44 Inclination (i)   1.3 Click for NASA orbit diagram
Hills Observatory: 1 January 2013 to 19 January 2019
The Observatoire de la Cote d'Azur-Deutsches Zentrum fur Luft und Raumfahrt Asteroid Survey (ODAS) discovered an 18th magnitude comet on 15 December 1998 with the 0.90-m Caussols Schmidt camera. In March 2008, Gareth Williams identified images of comet P/1998 X1 taken at its 2006 return. He found that Spacewatch images taken between January and March and Mt Lemmon images from March show the comet, which was around 21st magnitude. The rediscovery of this comet by G. V. Williams in 2006 astrometric survey data was announced on 31 March 2008. Date 10x10 mag Error Kphot mag Coma '