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Lunar impact: A history of Project Ranger
Complete history of the Ranger project is provided as a tool for understanding the evolution and operational form of NASA's continuing progress of unmanned space exploration. Basic management techniques, flight operating procedures and technology for NASA's later unmanned lunar and planetary missions were reviewed. Methods for selecting experiments and integrating them with the spacecraft were also investigated.
RANGER PROJECT STATUS
Status of the ranger project, a program for obtaining lunar surface data in preparation for manned flights, noting results of the four ranger flights
A Suggestion for Extension of the NASA RANGER Project in Support of Manned Space Flight
Proposal for utilizing Ranger project in support of Surveyor and Apollo projects
DSIF IN THE RANGER PROJECT
Deep space instrumentation facility /dsif/ in ranger project
The Ranger Project
In preparation for the first landing of a human on the Moon, several precursor missions were necessary to investigate its unknown environment.
Project Ranger television system.
Ranger television system designed to transmit close-up pictures of lunar surface to Earth
TRAJECTORY DESIGN FOR RANGER AND MARINER MISSIONS
Trajectory optimization for lunar and inter- planetary missions - ranger project
Publications of the Jet Propulsion Laboratory, July 1964 through June 1965
JPL publications bibliography with abstracts - reports on DSIF, Mariner program, Ranger project, Surveyor project, and other space programs, and space sciences
RANGERS: Modeling Report on Integrity and Performance Assessment of Engineered Barrier Systems in a Salt Repository for HLW/SNF
The Engineered Barrier System (EBS) plays an important role in ensuring the long-term safety and containment of high-level waste (HLW) and spent nuclear fuel (SNF) in deep geological repositories in salt formation. As part of a multi-barrier system, the EBS works alongside the natural barrier, which is the salt formation itself and the technical barrier comprising the disposal casks. The primary function of the EBS is to maintain containment during a defined period until the backfill used in the repository made of crushed salt, develops its sealing capacity through compaction. Over the time, the backfill eventually compacts to a state of low porosity and permeability, acting as a long-term seal. However, until this process is complete, the EBS must retain its structural and functional integrity. Regulatory guidelines in Germany currently require the EBS to remain effective for up to next ice age, that is expected in 50,000 years. The significant hydro-geological and topographic changes expected during an ice age could make it impossible to accurately predict the hydro-chemical conditions within the repository system at that time. In response to these challenges, BGE TECHNOLOGY GmbH (BGE TEC) and Sandia National Laboratories (SNL) have jointly developed a comprehensive methodology for the design and safety assessment of engineered barrier systems within the scope of the RANGERS project. This methodology is tailored for repositories in salt formations. The developed methodology provides a structured approach for designing and assessing the performance of the EBS in salt-based repositories. It begins with defining a sealing concept based on the geological characteristics of the selected site and the overall repository design. The entire repository system, comprising the geological site, repository infrastructure, and EBS, is then subjected to a Features, Events, and Processes (FEP) analysis, focusing solely on those FEPs that affect the EBS. The derived FEPs help identify the loads and stresses acting on the EBS, which serve as the foundation for conducting an integrity assessment. This analysis helps predict the EBS’s evolution and performance over the regulatory time frame, feeding into integrated performance assessment simulations.
RANGERS: Methodology Report on Design and Performance Assessment of Engineered Barrier Systems in a Salt Repository for HLW/SNF
Salt formations are one of the potential host rocks for the final disposal of high-level radioactive waste (HLW) in deep geological repositories, both in Germany and the United States. The safe isolation of radioactive waste in these repositories relies on a multi-barrier system, combining engineered and natural barriers. The natural barrier is provided by the salt rock itself, known for its self-sealing properties and long-term stability. The engineered barrier, on the other hand, comprises sealing components strategically placed within the repository to enhance its containment capabilities. In both Germany and the United States, long-term safety assessments require demonstrating the integrity of the natural barrier for a period of up to 1 million years. Concurrently, the engineered barrier system (EBS) must maintain its structural and functional integrity until the long-term sealing, such as the granular salt backfill material, has re-consolidated to its final low porosity and permeability. Based on extensive expertise and experience with engineered barriers in salt formations, BGE TECHNOLOGY GmbH and Sandia National Laboratories have partnered to develop a robust methodology for the integrity and performance assessment of EBS in HLW repositories through the RANGERS project. This collaborative effort aims to establish a unified approach to geotechnical engineering, repository design, integrity and performance evaluation of EBS in salt repositories.
CONSTANTS AND RELATED DATA USED IN TRAJECTORY CALCULATIONS AT THE JET PROPULSION LABORATORY
Constants and related data used in trajectory calculations at jet propulsion laboratory
Preliminary scientific results from the U.S. Surveyor lunar probe
Surveyor 1 and 5 data on lunar surface composition and consistency, discussing Luna and Ranger projects of U.S.S.R. and U.S.
The Deep Space Network
The objectives, functions, and organization, of the Deep Space Network are summarized. Deep Space stations, ground communications, and network operations control capabilities are described. The network is designed for two-way communications with unmanned spacecraft traveling approximately 1600 km from earth to the farthest planets in the solar system. It has provided tracking and data acquisition support for the following projects: Ranger, Surveyor, Mariner, Pioneer, Apollo, Helios, Viking, and the Lunar Orbiter.
Experimental topographic map of a small area of the lunar surface from the Ranger VIII PHOTOGRAPHS
Lunar topographic projection of Ranger VIII STEREOSCOPIC photographs
Where next in space/ques/
Mariner, Surveyor, Ranger, Lunar Orbiter, Gemini, Apollo, Saturn, Centaur, and lunar exploration space programs
Space programs summary no. 37-34, volume vi for the period may 1, 1965 to june 30, 1965. space exploration programs and space sciences
Space exploration programs and space science summary on Mariner, Ranger, and Surveyor projects - deep space instrumentation facility - environmental test facility