TITLE: GCN CIRCULAR NUMBER: 29572 SUBJECT: GRB 210226A: Burke-Gaffney Observatory optical upper limit DATE: 21/02/26 15:11:19 GMT FROM: Filipp Dmitrievich Romanov at Amateur astronomer I observed the field of GRB 210226A (Beardmore et al., GCN Circ. 29568) with remote telescope (0.61-m f/6.5 Corrected Dall-Kirkham + CCD) of Burke-Gaffney Observatory (Halifax, Canada). Image (clear: without filter) with 180 seconds exposure time was obtained on 2021-02-26. Start time of exposure: 08:00:36 UT (3 h. 16 m. 39 s. after trigger). I did not detect any optical transients (magnitude limit of about 18.0). Image available here: http://www.ap.smu.ca/~bgo/sm/id.php?app=0&id=13614