15. OCO-2 and OCO-3 data are freely available and can be accessed through the NASA GES DISC data archive center.*5 pointsTrueFalse

When were OCO-2 and OCO-3 launched into space?*5 pointsOCO-2 was launched in 2014 and OCO-3 in 2020.OCO-2 was launched in 2012 and OCO-3 in 2020.OCO-2 was launched in 2020 and OCO-3 in 2013.OCO-2 was launched in 2014 and OCO-3 in 2019.

10. XCO2 measurements from OCO-2 and OCO-3 can be combined together in an analysis.*5 pointsTrueFalse

9. The XCO2 measurement from OCO-2/OCO-3 is directly comparable to an in situ measurement at a surface site or a single point in the atmosphere.*5 pointsTrueFalse

12. Which OCO files are recommended for analysis because they are smaller in size and contain just the XCO2 data and have already been pre-screened, quality-flagged (filtered), and bias-corrected?*5 pointsThe Full Physics FilesThe Beta FilesThe X FilesThe Lite Files

11. The OCO-2 Level-3 data are global daily products that have not been gap-filled.*5 pointsTrueFalse