Examination of lunar scientific objectives and evaluation and development studies for possible post-Apollo period Semiannual status report, 1 Jul. - 31 Dec. 1970
Lunar seismic velocity models and lunar reverberation calculations
Booker, J. R.↗
Engineering topics
Kovach, R. L.
Publications and source records attributed to Kovach, R. L..
Explosive gas blast - The expansion of detonation products in vacuum
Detonation products expansion in vacuum, measuring gas flow speeds and pressure profiles far from charge
Ahrens, T. J.↗
Active seismic experiment
Active seismic signal analysis from Apollo 14 thumper and mortar detonations on lunar surface
Kovach, R. L.↗
Mascons and lunar gravity
Lunar surface mascon structure and origin from mass estimates, noting contributions to lunar gravity field variations
Booker, J. R.↗
Explosive seismic sources for the moon
Vacuum effect on explosive coupling seismic energy considered in lunar geophysical experiment
Ahrens, T. J.↗
Upper mantle structure in the Basin and Range province, western North America, from the apparent velocities of S waves
Shear velocity variation with depth in upper mantle for Basin and Range province of western North America, using S waves measurements
Kovach, R. L.↗
A seismic refraction system for lunar use.
Miniaturized seismic refraction system for manned lunar landings consisting of geophones, three channel amplifier, calibrator and logarithmic compressor
Kerr, J.↗
The velocity structure of the moon.
Lunar seismic velocity distribution data indicates broad low velocity zone together with possible extensive melting at depth
Kovach, R. L.↗
The composition of the terrestrial planets.
Earth density/pressure relation and mantle and core mean atomic weight used to construct mass- mean density curve for planets
MOLECULAR WEIGHT↗
Lunar seismic exploration.
Seismic experimentation methods to be performed on moon, giving P and S wave travel time curves for models of lunar interior
SEISMIC WAVE↗
The internal structure of the moon and the terrestrial planets
Thermal history and mean density evaluations for Moon, Mars, and Earth to account for inner planet internal structure differences
EARTH↗
Free oscillations of the moon and observations by a long-period seismograph system.
Spherical and torsional oscillations of moon by long-period seismograph for investigation of internal lunar structures
LUNAR SEISMOGRAPH↗
Experimental ground amplitudes from small surface explosions
Ground amplitudes produced by small surface explosions
EXPLOSION↗
THEORETICAL TIDES ON A RIGID, SPHERICAL MOON
Theoretical tides on rigid moon compared to gross physical properties of moon from tidal observations
LUNAR TIDE↗
THEORETICAL TIDES ON A RIGID, SPHERICAL MOON
Theoretical tidal tilts and changes in gravitational acceleration make possible the determination of gross physical properties of the moon
GRAVITATIONAL EFFECT↗
SEISMIC EXPLORATION OF THE MOON
Lunar seismic exploration with description of seismometer for manned or unmanned missions
SEISMOMETER↗
DISPERSION OF LONG-PERIOD LOVE WAVES IN A SPHERICAL EARTH
Dispersion of waves in a spherical earth
SPHERE↗