What Launched has both a Spacecraft of Ulysses and 491 days (1 yr, 4 mo, 3 d) as Time elapsed?
CREATE TABLE "1990s" (
  "spacecraft" text,
  "destination" text,
  "launched" text,
  "closest_approach" text,
  "time_elapsed" text
);
SELECT "launched" FROM "1990s" WHERE "spacecraft"='ulysses' AND "time_elapsed"='491 days (1 yr, 4 mo, 3 d)';