3 ▁the ▁previous ▁week . ▁During ▁the ▁mission ▁there ▁was ▁some ▁concern ▁for ▁Bel ka ▁and ▁St rel ka ' s ▁health , ▁after ▁images ▁of ▁Bel ka ▁vom iting ▁had ▁been ▁obtained ▁from ▁the ▁on board ▁cam eras . ▁The ▁space craft ▁and ▁dogs ▁were ▁recovered ▁following ▁the ▁ 2 6 - hour ▁space fl ight , ▁and ▁extensive ▁phys i ological ▁tests ▁revealed ▁that ▁the ▁dogs ▁were ▁in ▁good ▁health . ▁This ▁represented ▁a ▁significant ▁success ▁for ▁the ▁V ost ok ▁programme . ▁ ▁The ▁success ▁of ▁Kor abl - S put nik ▁ 2 ▁gave ▁the ▁design ers ▁confidence ▁to ▁put ▁forward ▁a ▁plan ▁leading ▁to ▁a ▁human ▁space fl ight . ▁A ▁document ▁regarding ▁a ▁plan ▁for ▁the ▁V ost ok ▁programme , ▁dated ▁September ▁ 1 0 , ▁ 1 9 6 0 , ▁and ▁dec lass ified ▁in ▁ 1 9 9 1 , ▁was ▁sent ▁to ▁the ▁Central ▁Committee ▁of ▁the ▁Commun ist ▁Party , ▁and ▁approved ▁by ▁Premier ▁Nik ita ▁K hr ush chev . ▁This ▁document ▁had ▁been ▁signed ▁by ▁the ▁top ▁leaders ▁in ▁the ▁Soviet ▁defence ▁industry ▁at ▁the ▁time , ▁the ▁most ▁senior ▁being ▁Deput y ▁Chair man ▁D mit ri y ▁U st in ov ; ▁this ▁indicated ▁the ▁elev ated ▁importance ▁of ▁the ▁document . ▁The ▁plan ▁called ▁for ▁one ▁or ▁two ▁more ▁V ost ok ▁ 1 K ▁fl ights , ▁followed ▁by ▁two ▁un cre wed ▁V ost ok ▁ 3 K ▁fl ights , ▁followed ▁by ▁a