First evidence of black smoke near the right Shuttle Rocket Booster (SRB) near field joint, during Liftoff of the Shuttle Challenger STS 51-L. Time as OF0.445 Kennedy Space Center alternative photo number is 108-KSC-386C-660/2 (10096); Smoke is at its darkest at Time as OF1.606. KSC alternative photo number is 108-KSC-386C-660/75 (10097); Black smoke extends halfway across the right SRBat Times as OF2.147. KSC alternative photo number is 108-KSC-386C-660/160 (10098).