<page_title> Boeing X-37 </page_title> <section_title> Operational history </section_title> <table> <cell> OTV-3 <col_header> Flight </col_header> <col_header> OTV-1 </col_header> <col_header> OTV-2 </col_header> </cell> <cell> 674 days and 22 hours <col_header> Duration </col_header> <row_header> OTV-3 </row_header> </cell> </table>
The OTV-3 mission was in orbit for 674 days and 22 hours.