Apollo 11 crew observes unidentified L-shaped / cylindrical object — translunar coast

Approximately one day out from Earth during translunar coast, all three Apollo 11 crewmembers (Armstrong, Collins, Aldrin) observed a bright, sizeable object through the windows and through the spacecraft sextant and monocular. Through the naked eye it appeared L-shaped; through the out-of-focus sextant it appeared cylindrical or as two connected rings; refocusing produced an open-book appearance. Crew confirmed the S-IVB was 6,000 miles away at the time. No definitive explanation was reached in the debriefing; Collins speculated it may have been spacecraft debris.

“ALDRIN: "We happened to see this one brighter object going by... We looked at it through the monocular and it seemed to have a bit of an L shape to it." ARMSTRONG: "Like an open suitcase." COLLINS: "It was a hollow cylinder. But then you could change the focus on the sextant and it would be replaced by this open-book shape. It was really weird."”

OCR quality is moderate with some scan artifacts and redaction formatting marks visible. Document carries a NASA classification notice but is noted as declassifiable. Crew consensus was that it was not a urine dump artifact and was 'something physical.' S-IVB confirmed 6,000 miles distant, ruling out that identification. Collins speculated high-gain antenna debris. The sighting duration and shape-changing appearance (focus artifact from the sextant) are documented; no firm resolution was reached. This is the most substantive UAP sighting in the batch.