Sa. PROJECT H "= - MIGHTY SKY (continued) Superseded Project Number A610 6. 10 Airborne lIonospheric Observatory A6ll 6.11 HEF Communications Experiment A612 6.12 Satellite Packages A613 6.13.1 Instrumented Ship A615 6.15 Measurement of Gamma, Neutron and Visible Radiation from Fission A616 6. 16 Vertical Soundings of the lonosphere A617 6.17 Incoherent Backscattering A618 (Not Active) 6.18 Radar Attenuation in the Vicinity A619 6.19 A620 6.20 of Low Altitude Nuclear Bursts Satellite Communications Measurement of Effects on VLF and LF Radio Wave Propagation A625 6.25 Debris Sampling A626 6.26 Gun Fired Probes A628 6.28, 1 Riometers A629 6.29.1 Electromagnetic Detection System A630 6.13.2 PMRIsland Radars (formerly a part of 613) A802 8.2 UV, Visible and IR Radiation Effects A804 8.4 Fireball and Debris Cloud Motion Photography A807 None Ultraviolet Output Measurements VOLI& Il _ April 1969 I-14 r = Title Subtask