▁solar ▁wind ▁speed ▁and ▁density ▁in hom ogene ities ▁in ▁the ▁solar ▁cor ona ▁regions ▁between ▁ 1 0 ▁and ▁ 3 0 ▁solar ▁radi is . ▁A ▁second ▁radio ▁broadcast ▁of ▁hect ometric ▁frequency ▁was ▁observed . ▁ ▁An ▁upper ▁limit ▁to ▁the ▁radio ▁flux ▁em itted ▁by ▁Jup iter ' s ▁H F ▁radio ▁broadcast s ▁was ▁determined ▁by ▁the ▁observations ▁made ▁during ▁the ▁Moon ' s ▁occ ult ations ▁of ▁the ▁giant ▁planet . ▁ ▁Radio ▁em issions ▁from ▁the ▁Earth ▁of ▁natural ▁and ▁human ▁origin ▁are ▁both ▁w ides p read ▁and ▁often ▁very ▁inten se ▁( 4 0 ▁d B ▁higher ▁than ▁the ▁cos mic ▁background ) ▁on ▁the ▁frequencies ▁observed ▁( 0 . 2   M Hz ▁to ▁ 9 . 2   M Hz ). ▁ ▁See ▁also ▁▁ ▁Explorer ▁ 4 9 ▁ ▁References ▁ ▁External ▁links ▁ ▁Real ▁Time ▁Sat ellite ▁Track ing ▁and ▁Pred ict ions : ▁Explorer ▁ 3 8 ▁( RA E - A ). ▁n 2 yo . com ▁ ▁Data ▁Dis plays ▁of ▁Radio ▁Astronom y ▁Explorer ▁ 1 ▁( PDF ) ▁ ▁Category : Space craft ▁launched ▁in ▁ 1 9 6 8 ▁Category : Ex pl or ers ▁program ▁( N AS A ) ▁Category : Space craft ▁launched ▁by ▁D elta ▁rock ets <0x0A> </s> ▁M ish uk ovo ▁() ▁is ▁a ▁rural ▁local ity ▁( an ▁inhab ited ▁local ity ) ▁in ▁Kol sky ▁District ▁of ▁Mur m ansk ▁O blast , ▁Russia , ▁located