i fi AY Gg a y % &.. ey % y * z BUCY CENTER FOR POSTEVENT AOFILE 5. t / Vey Y o HELEN 3 ——— Preshot Survey Lines ¥ Nig S ° —--Pestshot Survey Lines ~~ Figure 18 Shot Koa survey radii. ] ] I yl Tq.FT e ’ é | \ Mer Pe ad > ae At Deen. o * — r 4 i ° if — , : Rodiug “4 radus? | + 4 Pai x a . ~ s “90 — . a y rs x? \ 7 \ / 7 “0 130 Z 2400 / NQ, ----- Preshot -—\ -1$0 -170 7 / | ! 2000 l 1600 ! 1200 | 800 ! 400 DISTANCE | —— Postshot / Q | 400 ! | 800 from GROUND ZERO, feet Figure 19 Shot Koa crater profile, Radii 1 and 4. 28 Profile Profile 1200 | 1660