1) ALCS and NLCS mos 2) Autumn mos 3) Fall months 4) Fall mos 5) Halloween months 6) Halloween mos 7) Opal months 8) Short autumn months 9) Short months 10) Some months 11) Some mos 12) Some short months Found on https://www.crosswordclues.com/clue/octs
1) ALCS and NLCS mos 2) Autumn mos 3) Fall months 4) Fall mos 5) Halloween months 6) Halloween mos 7) Opal months 8) Short autumn months 9) Short months 10) Some months 11) Some mos 12) Some short months 
acronym: ocean color and temperature sensor