coming ▁ceremony ▁by ▁the ▁station ▁crew , ▁Atl ant iss ▁astr onaut s ▁received ▁the ▁standard ▁station ▁safety ▁brief ing . ▁ ▁The ▁crew ▁then ▁got ▁to ▁work ▁with ▁Fer g us on ▁and ▁Hur ley ▁using ▁the ▁sh utt le ▁arm ▁to ▁take ▁its ▁O B SS ▁from ▁the ▁station ' s ▁Canad arm 2 ▁operated ▁by ▁Gar an ▁and ▁Fur uka wa . ▁The ▁station ▁arm ▁had ▁pl uck ed ▁the ▁O B SS ▁from ▁its ▁st ow age ▁position ▁on ▁the ▁sh utt le ▁cargo ▁bay ▁s ill . ▁The ▁hand off ▁was ▁to ▁prepare ▁to ▁use ▁the ▁bo om ▁for ▁any ▁sh utt le ▁heat ▁shield ▁late ▁ins pe ctions ▁if ▁required . ▁Magn us ▁worked ▁with ▁TV ▁setup ▁and ▁Wal heim ▁transferred ▁space walk ▁g ear . ▁ ▁During ▁Fl ight ▁Day ▁ 3 , ▁flight ▁controllers ▁began ▁monitoring ▁reports ▁from ▁the ▁Department ▁of ▁Def ense ' s ▁U . S . ▁Str ateg ic ▁Command ▁that ▁an ▁orb ital ▁de br is ▁piece ▁of ▁the ▁Russian ▁satellite ▁C OS M OS ▁ 3 7 5 ▁may ▁come ▁near ▁the ▁station ▁and ▁sh utt le ▁complex ▁about ▁no on ▁the ▁next ▁day . ▁The ▁team ▁updated ▁tracking ▁information ▁following ▁the ▁dock ing ▁and ▁determined ▁that ▁no ▁course ▁correction ▁man eu ver ▁was ▁necessary . ▁▁ 1 1 ▁July ▁( F light ▁Day ▁ 4 ▁– ▁M PL M ▁installation ) ▁ ▁The ▁main ▁objective ▁of ▁Fl ight ▁Day ▁ 4 ▁was ▁to ▁install ▁the ▁R aff a ello