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1. Mars Orbiter Mission
This project was created to research the mar's orbit speed. It was studying the upper air layer of Mars. It contains the start date and end date of the process and also mentions that it was a cheap project among all projects which makes it unique and the start and end date makes it temporary and considers it as a project.
https://www.indiatvnews.com/fyi/5-years-of-mangalyaan-india-s-mars-orbiter-mission-here-s-all-you-need-to-know-552094 -
2. Mariner Program
This project was started in the year 1962 and it was created to research the Mercury and Venus planet. It has also microwave radiometer, Infrared radiometer, and Particle detector. It contains the start date and end date of the process and also mentions that it keeps data of both planets, Mercury, and Venus, among all projects which make it unique and the start and end date makes it temporary so it was known as project.
https://www.nasa.gov/mission_pages/mariner