S-band transponder experiment
Apollo 14 command service and lunar module orbital velocity data from radio navigation S-band transponder experiment for lunar gravitation effects
Engineering topics
Publications and source records attributed to Sjogren, W. L..
Apollo 14 command service and lunar module orbital velocity data from radio navigation S-band transponder experiment for lunar gravitation effects
Calibration activity of Deep Space Network in support of Mars encounter phase of Mariner Mars 1969 mission
Lunar gravity correlation with large craters indicated from negative accelerations recorded in Apollo 12 lunar module Doppler radio tracking data
Nonexistence of large mascons at Mare Marginis and Mare Orientale deduced from residual acceleration analysis of Lunar Orbiter Doppler tracking data
Lunar gravitational field data from Lunar Orbiter spacecraft reprocessed, discussing mascon effects on moon structure and evolution theories
Residuals from earth based coherent two way radio Doppler data from Lunar Orbiter three orders of magnitude larger than observations from spacecraft
Lunar Orbiter tracking data analysis for qualitative gravimetric lunar map
Harmonic models and Doppler data used to analyze orbital perturbation of Lunar Orbiter
Lunar mass concentrations investigated from Lunar Orbiter tracking data for gravimetric map
Principal constants and related data for space navigation, trajectory, and orbit calculations
Residuals in lunar ephemeris calculated from Brown theory confirmed by lunar probes radio tracking and reduced by repeated calculations, using LE 5
Lunar gravity estimates using tracking data from lunar orbiters, including tesseral and zonal harmonic coefficients
Large Doppler residuals near pericynthion found in lunar orbiter tracking data
Data from Lunar Orbiter spacecraft used to test validity of corrections to lunar ephemeris reveals residual patterns
Estimate of dynamical center from four lunar surface impact points determined by tracking Ranger probes from three earth-based stations
Radio-tracking data from Ranger lunar missions for estimated physical constants of earth and moon
Estimated GM values of earth and moon, tracking station locations and lunar radii at impact points, from DSIF radio tracking data of Ranger Block III lunar flights
Earth based radio tracking and orbit determination accuracies for Ranger and Mariner missions