MASTER OT J183120.64+301935.5 most likely superoutburst

Type from ZTF data.

YYYYMMDD(UT) mag observer 20210901.2253 16.774zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210903.2172 16.995zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210905.2761 17.175zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210907.1797 17.642zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210907.3080 17.825zr (Zwicky Transient Facility Lasair (Masci+ 2019))