Apollo Service Module Reaction Control System engine chamber seal study Materials report
Metallic and monmetallic materials evaluation for use in injector head-combustion chamber seals of Apollo service module
MATERIAL TESTING↗
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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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A full-size pilot-controlled docking simulation of the Apollo command and service module with the lunar module
Full-size pilot-controlled docking simulation of Apollo command and service module with lunar module using only visual information
COMMAND MODULE↗
Message transfer service for space applications
Spacecraft applications that interact with on-board sensors, effectors, and major components have traditionally used private interfaces which are tightly bound to the interface details of the data links connecting these sub-systems. The latest spacecraft, which often include several powerful processors running real time operating systems, high-speed on-board networks, and intelligent peripherals, can support a more layered networked environment. Use of standard interfaces and networked elements is expected to yield reusable software and hardware components. Within CCSDS Panel 1K we have been developing such on-board interface standards. This paper will present a Message Transfer Service that defines a common API for use within a single spacecraft or among spacecraft flying in a constellation.
CCSDS SOIF message service space communication↗
Automated workflow for engineering services
This paper describes a prototype of an automated workflow system, developed by the Jet Propulsion Laboratory, that provides navigation and telecommunication services.
automated workflow web services database legacy ap↗
The proposed international DORIS service
The goal of this paper is to discuss the status of the DORIS Pilot experiment, to analyze the progress made during the past two years and to propose the official creation within the IAG of an International DORIS Service (IDS).
DORIS IDS International DORIS Service IGGOS↗
Maintaining remote services and resources over the internet (and other networks)
This paper defines a Remote Node Architecture (RNA) that can house multiple services and resources.
remote services security collaboration↗
Planetary Rover and Space Platform Servicing - Simulation Tools and Network Based Operations
Ground control of space station robotics systems, unmanned space platform servicing, earth-based control of lunar and planetary rover missions, and planetary balloon missions.
space platform servicing telerobotics rover missio↗
Asynchronous Message Service (AMS) concept paper
This document defines a CCSDS Asynchronous Message Service (AMS) for mission data system communications.
ground data system↗
Web Map Services (WMS) Global Mosaic
The WMS Global Mosaic provides access to imagery of the global landmass using an open standard for web mapping. The seamless image is a mosaic of Landsat 7 scenes; geographically-accurate with 30 and 15 meter resolutions. By using the OpenGIS Web Map Service (WMS) interface, any organization can use the global mosaic as a layer in their geospatial applications. Based on a trade study, an implementation approach was chosen that extends a previously developed WMS hosting a Landsat 5 CONUS mosaic developed by JPL. The WMS Global Mosaic supports the NASA Geospatial Interoperability Office goal of providing an integrated digital representation of the Earth, widely accessible for humanity's critical decisions.
web map services↗
Challenges of In Space Robotic Servicing
As future space missions extend beyond the friendly confines of low earth orbit, robots are becoming an increasingly vital component on flight manifests. While the main focus to-date has been on satellite servicing due to its high commercial potential, robots are also being considered for orbital debris removal, space construction, and asteroid sample retrieval. The robotic technologies and automation required to carry out these missions represent a significant advancement beyond the manipulation technology used previously on the Space Shuttle, the International Space Station, and planetary rovers. While higher demands are being driven by the more ambitious nature of the tasks, the handling of uncooperative targets such as satellites and asteroids, present a greater challenge.
robotic technologies↗
Recommended Spacewire Standard Quality of Service Improvement (while Maintaining Backward Compatibility)
This presentation covers a SpaceWire major concern poor Quality of Service (QoS) and provides recommendation to fix SpaceWire QoS for heritage SpaceWire designs.
design and analysis of networks↗
Electrical Pressurization Concept for the Orion MPCV European Service Module Propulsion System
The paper presents the design of the pressurization system of the European Service Module (ESM) of the Orion Multi-Purpose Crew Vehicle (MPCV). Being part of the propulsion subsystem, an electrical pressurization concept is implemented to condition propellants according to the engine needs via a bang-bang regulation system. Separate pressurization for the oxidizer and the fuel tank permits mixture ratio adjustments and prevents vapor mixing of the two hypergolic propellants during nominal operation. In case of loss of pressurization capability of a single side, the system can be converted into a common pressurization system. The regulation concept is based on evaluation of a set of tank pressure sensors and according activation of regulation valves, based on a single-failure tolerant weighting of three pressure signals. While regulation is performed on ESM level, commanding of regulation parameters as well as failure detection, isolation and recovery is performed from within the Crew Module, developed by Lockheed Martin Space System Company. The overall design and development maturity presented is post Preliminary Design Review (PDR) and reflects the current status of the MPCV ESM pressurization system.
Helium↗
REAL Knowledge at NASA: A Knowledge Services Model for the Modern Project Environment
REAL Knowledge at NASA: A Knowledge Services Model for the Modern Project Environment
Modern Project Environment↗
Prognostics As-A-Service (PaaS)
Deep awareness of aircraft system health-state is critical for maintaining safe, efficient growth in global operations and enabling autonomy. Maintainers, operators, controllers, dispatchers, pilots, and autonomous systems must have reliable real-time predictions of vehicle health to preserve safety and efficiency. We will explore the feasibility and challenges of cloud enhanced prognostics. Aircraft request PaaS in flight to supplement onboard systems or provide complete health awareness. We will explore and demonstrate the ability to address six major challenges of PaaS: Generality, Environmental Complexity, Utility, Trust, Communications, and Security. We will also explore the factors in the decision to host prognostics onboard vs As-A-Service.
Prognostics As A Service↗
Service Metadata Refactoring- Status Update
Presentation giving a status update on the refactoring of the Unified Metadata Model for Services, including changes to UMM-S and the creation of a UMM-Tools.
Refactor↗
On-orbit Servicing, Assembly and Manufacturing (OSAM) Near-Term in-Space Developmental Test Persistent Platform: ESPA-Star Based Implementation
Roundtable Session on In-Space Developmental Test: Springboard for Rapid Development. Presentation is a brief description of the On-orbit Servicing Assembly & Manufacturing (OSAM) national initiative & using standard EELV Secondary Payload Adapters (ESPAs) as the core building block to construct an ESPA-Star based implementation for an iSDT persistent platform in space.
Persistent Platform↗
An Advanced Operator Interface Design with Preview/Predictive Displays for Ground-Controlled Space Telerobotic Servicing
Recent advances in real-time 3-D graphics and graphical user interface (GUI) technologies enable development of advanced operator interfaces for telerobotic systems. In particular, we have employed preview/predictive displays with calibrated graphics overlay and X/Motif-based GUI's for efficient and reliable ground-controlled space telerobotic servicing under communication time delay.
Telerobotic↗
ATD-2 Integrated Arrival/ Departure/Surface (IADS) System Machine Learning Services - Arrival Runway Model (ARM)
This document describes the Arrival Runway Model (ARM) Machine Learning (ML) service developed under the ATD-2 subproject as a reference implementation and released by NASA as Open Source software on github.
ATD-2↗