Not all Iridium flares are spectacular. This is Iridium 91 which managed to achieve its brightest point just as it was departing from the frame. At a meager magnitude -1.2 it was much dimmer than my previous Iridium posted on 4/10/2013.
animated gif. 2.63mb
Lens 40mm. 40 second exposures
(click thumbnail for large version)