a_v_bw_o_Agfa (Grumman LEM, photo no. 651088)
“By igniting the descent engine (contained in the LEM’s lower, descent stage), the separated LEM is inserted into an elliptical transfer orbit. Following cutoff of the descent engine, the LEM coasts to the low point of its descent orbit which brings the craft to within about 50,000 feet of the lunar surface, and uprange of the proposed landing site. At that time, the descent engine is refired to reduce velocity during the LEM’s descent to landing.
The LEM’s descent is automatically controlled to an altitude of a few hundred feet by a Guidance/Navigation Control System. During the final landing phase, the two-man crew selects a favorable landing site and, by manual control of the reaction control system jets (clustered at the four corners of the LEM upper, ascent stage) and the variable thrust descent engine, the craft is manipulated into the correct attitude over the landing site, and landed gently on the moon.”
The above are affixed to the verso of the photograph. Although informative, they don't describe what's depicted, which appears to be lunar orbit insertion.
a_v_bw_o_Agfa (Grumman LEM, photo no. 651088)
“By igniting the descent engine (contained in the LEM’s lower, descent stage), the separated LEM is inserted into an elliptical transfer orbit. Following cutoff of the descent engine, the LEM coasts to the low point of its descent orbit which brings the craft to within about 50,000 feet of the lunar surface, and uprange of the proposed landing site. At that time, the descent engine is refired to reduce velocity during the LEM’s descent to landing.
The LEM’s descent is automatically controlled to an altitude of a few hundred feet by a Guidance/Navigation Control System. During the final landing phase, the two-man crew selects a favorable landing site and, by manual control of the reaction control system jets (clustered at the four corners of the LEM upper, ascent stage) and the variable thrust descent engine, the craft is manipulated into the correct attitude over the landing site, and landed gently on the moon.”
The above are affixed to the verso of the photograph. Although informative, they don't describe what's depicted, which appears to be lunar orbit insertion.