C/2013 C2 (Tenagra)

C/2013 C2 (Tenagra)
2015 May  11.89 UT: NEGATIVE m1=[15.3... 50.8-cm L (307x)... Sandor Szabo (Sopron, Hungary) [Must be fainter than 15.3 mag.]
2015 Mar. 22.29 UT: m1=12.5, Dia.=1.5′, DC=3... 22-cm L (160x)... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Mar. 11.04 UT: m1=11.8, Dia.=1′, DC=4/... 22-cm L (160x)... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Feb. 28.74 UT: m1=15.3: CCD Dia.=0.34′... [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer... A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Feb. 27.19 UT: m1=14.0:, Dia.=0.25′, DC=7/... 22-cm L (230x)... Marco Antonio Coelho Goiato (Araçatuba, Brazil)