What site has an orbit of Leo, a decay (UTC) of still in orbit, and a magnetosphere research?
CREATE TABLE "deep_space_rendezvous" (
  "date_and_time_utc" text,
  "rocket" text,
  "site" text,
  "orbit" text,
  "function" text,
  "decay_utc" text
);
SELECT "site" FROM "deep_space_rendezvous" WHERE "orbit"='leo' AND "decay_utc"='still in orbit' AND "function"='magnetosphere research';