hours and ninutes. A brief description follows: + 3h 35m ~ possible 2-hop oblique echoes from 5.5 to 6.5 me (an ionogram 20 min earlier exhibited thickening - of trace in this region) +4h 15m - various unexplained traces near 4.5 mc; also peculiarities in both lehop and 2-hop traces near 6 m +4h 45m ~ start of second period (much more definite effects); oblique lehop echo 4.5 to 5 mc; 2ehop trace at less than twice height of 1-hop trace near 7 m + 5h ~ obvious 2-hop obliques; also an oblique M-type echo between le and 2-hop traces (via F2, sporadic E, then F2) + 5h 15m - similar to +5h i oe coo eeSates ene aeaiie coo MERU aGA eneeae Baarai 8G ar(ed fg mee SOBA Pie : Pease: res org ass ma ett gs aeEeetay tia mISAceenten Thalesbabedtae| Seees FE E Peal daapaiaet ete nenOES RE eteheEeareipayTHe eere a EosBgBgSaEd)el SSHReraMMenal2010ea} peeeeLARBn [eGEpa aas : ahstASH * al) - Bige 3023 = Ionospheric Recow4’s at Guam Following Shot 1 by 6 hr 15 min to 1C hr 15 min, Show-=7 End of Effects and Return to Normal 53 SECRET

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