What number missile led to damage to the Islamic University campus?
CREATE TABLE "table1_23014685_1" (
  "no" real,
  "place_date" text,
  "target" text,
  "area_damaged" text,
  "cause_of_damage" text,
  "intercepted_by_patriot" text
);
SELECT MIN("no") FROM "table1_23014685_1" WHERE "area_damaged"='Islamic University campus';