Lunar Orbiter 1 due to stray sunlight) and overheating during its cruise to the Moon. The star tracker problem was resolved by navigating using the Moon as a reference, and the overheating was abated by orienting the spacecraft 36 degrees off-Sun to lower the temperature. Lunar Orbiter 1 was injected into an elliptical near-equatorial lunar orbit 92.1 hours after launch. The initial orbit was and had a period of 3 hours 37 minutes and an inclination of 12.2 degrees. On August 21, perilune was dropped to and on August 25 to . The spacecraft acquired photographic data from August 18 to 29, 1966,
Military designation of days and hours is 7 days after C-day, "H−2" is 2 hours before H-hour, and so forth. In less formal contexts, the time is usually spelled out, so that "D−3" becomes "D minus three" or "D minus 3". Military designation of days and hours The military designation of days and hours within the North Atlantic Treaty Organisation (NATO), is specified in AAP-6 (STANAG 3680), "NATO Glossary of Terms and Definitions", and marked "(NATO)" in what follows. Those entries marked "(US)" are specific to the U.S., and defined only in Joint Publication JP 1-02, "Department of Defense Dictionary of Military and Associated Terms". References