CREATE TABLE table_15231 ("Name" TEXT, "Alt name" TEXT, "Launch date" TEXT, "Mass  ( kg ) " FLOAT, "Decay date" TEXT, "Perigee  ( km ) " FLOAT, "Apogee  ( km ) " FLOAT, "Inclination" FLOAT)

How many Apogee sis Ops-8285 with more than 1500 kg?
SELECT COUNT("Apogee (km)") FROM table_15231 WHERE "Alt name" = 'ops-8285' AND "Mass (kg)" > '1500'
SELECT COUNT("Apogee (km)") FROM "table_15231" WHERE "Alt name" = 'ops-8285' AND "Mass (kg)" > '1500'