CRTS J172515.5+073249 outburst Subtype unknown. Relatively rare outburst. Precursor + brightening? YYYYMMDD(UT) mag observer 20220107.2938 <163C (Eddy Muyllaert) 20220213.4971 15.400zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220218.5088 16.992zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220218.5370 16.805zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220220.4673 15.990zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220220.5245 16.109zr (Zwicky Transient Facility Lasair (Masci+ 2019))