OCO was lost before returning science, so no publication search was run; it counts as zero in the comparisons.
Orbiter · Competed · PI-led · Launched on February 24, 2009 · Failure · LCC: $273M/$443M (2025 $)Life-cycle cost: NASA’s reported cost to build, launch, and operate a mission through its prime mission, plus documented partner contributions, in 2025 dollars. Extended missions are not included. Methods · Wikipedia
ScopeActive Mission WindowActivePapers published from the first full month after science operations begin through two years after the mission ends. Citations are counted through the third calendar year after each paper appears. For OCO, papers published March 1, 2009 to March 1, 2011. Methods/LifetimeLifetimeEvery tracked publication to date, with every citation to date. Methods
