Question: Tell me the launch date/time for payload of GSAT-4
SQL: SELECT "Launch date/time (UTC)" FROM "2-1005861-1" WHERE "Payload" = 'GSAT-4';

Question: Tell me the launch pad for 25 December 2010 10:34
SQL: SELECT "Launch Pad" FROM "2-1005861-1" WHERE "Launch date/time (UTC)" = '25 December 2010 10:34';