TDF-1 #19621 8890A observed from Adelaide, So. Australia flashing up to mag 2.5 every 31.79 + or - .01sec, from 11:35:30UT till 11:45:00UT. Not seen later at 11:52UT, also not seen earlier at 11:25UT Usual sets of two interleaved sequences, like Superbird A, at equal amplitudes at 11:44:00. Observed in 7x50 binoculars. Tony Beresford (Cospar 8597, -34.96S, 138.6333E,100mASL)