ASASSN-21fd likely superoutburst

Type from ZTF data.

YYYYMMDD(UT) mag observer 20220526.4121 16.054zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220528.3994 15.856zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220528.4407 15.756zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220601.3829 16.298zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220601.4241 16.463zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220603.3533 16.714zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220603.4420 16.654zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220605.3965 16.891zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220607.3085 16.880zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220607.4155 16.770zg (Zwicky Transient Facility Lasair (Masci+ 2019))