ascertained

Verb

• establish after a calculation, investigation, experiment, survey, or study
• be careful or certain to do something; make certain of something
• find out, learn, or determine with certainty, usually by making an inquiry or other effort
• learn or discover with certainty
• simple past and past participle of ascertain

Adjective Satellite

• discovered or determined by scientific observation
  • "variation in the ascertained flux depends on a number of factors"

Synonyms

ascertain, assure, check, control, determine, discovered, ensure, find, find out, insure, learn, observed, see, see to it, watch