Eight Post-Explosion Video Images from Challenger, Mission 51-L
(mostly southern Cocoa Beach look angle)

(for a comparative flare analysis from a somewhat northern Playalinda Beach look angle, see Inversion)

Ponce de Leon boresight video is a 37-second movie clip. It shows dynamically how the flared SRB behaved after the Challenger explosion. The flared booster was rolling clockwise viewed from aft, as confirmed below.

Air Force Radar Report links to an appendix of the Rogers Report. Although it misidentifies the flared booster, the radar report officially concludes (contrary to NASA's testimony) that this SRB indeed rolled clockwise (viewed from aft), after it exited the fireball:

"5.0. Condensed Chronology of Right SRB Observations.

Following the structural break-up at T+ 73 seconds, the right Solid Rocket Booster continued under thrust for approximately 37 seconds. It was tracked continuously by Radar 1.17 and Ponce de Leon MIGOR. Radar 0.14 and the UCS-15 IFLOT tracked briefly as shown in Figure 1.

Analysis of the PDL MIGOR video tape shows the SB to be rolling clockwise viewed from aft approximately once every 10 seconds during the powered flight period. Possibly this period decreased by about 1.5 seconds during the 37 seconds of powered flight indicating an angular acceleration about the longitudinal axis."