What is the cospar ID of the Kosmos 2397 satellite, which has an operational life of 2 months?
CREATE TABLE "table1_18161217_2" (
  "satellite" text,
  "cospar_id" text,
  "satcat_no" real,
  "product_number" real,
  "launch_date" text,
  "estimated_end_date_clarification_needed" text,
  "estimated_operational_life" text
);
SELECT "cospar_id" FROM "table1_18161217_2" WHERE "estimated_operational_life"='2 months' AND "satellite"='Kosmos 2397';