Mars mission concepts incorporating a 3 kWe surface fission power system

Wake-up calls are a long-standing tradition of the NASA program. Each day during the mission, flight...

Wake-up calls are a long-standing tradition of the NASA program. Each day during the mission, flight...

Wake-up calls are a long-standing tradition of the NASA program. Each day during the mission, flight...

Wake-up calls are a long-standing tradition of the NASA program. Each day during the mission, flight...

Wake-up calls are a long-standing tradition of the NASA program. Each day during the mission, flight...

Wake-up calls are a long-standing tradition of the NASA program. Each day during the mission, flight...

Wake-up calls are a long-standing tradition of the NASA program. Each day during the mission, flight...

Wake-up calls are a long-standing tradition of the NASA program. Each day during the mission, flight...

Wake-up calls are a long-standing tradition of the NASA program. Each day during the mission, flight...

Wake-up calls are a long-standing tradition of the NASA program. Each day during the mission, flight...

Mission 66 was a US National Park Service ten-year program t...

The Re-Mission video game for teens and young adults with ca...

Mission to Please is a 1996 album by The Isley Brothers on I...

The Re-Mission video game for teens and young adults with ca...

Together On A Mission is an annual conference held at The Br...

No Abstract Available

No Abstract Available

Mission 3B is designed as a payload retrieval mission with both shuttle launch and orbiter landing to take place at the western test range. The mission is designed for direct rendezvous with a passive satellite in a 100 NMI circular orbit with an inclination of 104 degrees. The ascent portion of mission 3B is described as well as the trajectory simulation.

Mission 3B is designed as a payload retrieval mission with both shuttle launch and orbiter landing to take place at the western test range. The mission is designed for direct rendezvous with a passive satellite in a 100 NMI circular orbit with an inclination of 104 degrees. The ascent portion of mission 3B is described as well as the trajectory simulation.

Mission 3B is designed as a payload retrieval mission with both shuttle launch and orbiter landing to take place at the western test range. The mission is designed for direct rendezvous with a passive satellite in a 100 NMI circular orbit with an inclination of 104 degrees. The ascent portion of mission 3B is described as well as the trajectory simulation.

Mission 3B is designed as a payload retrieval mission with both shuttle launch and orbiter landing to take place at the western test range. The mission is designed for direct rendezvous with a passive satellite in a 100 NMI circular orbit with an inclination of 104 degrees. The ascent portion of mission 3B is described as well as the trajectory simulation.

Abstract Not Available

Abstract The Global Precipitation Measurement (GPM) mission is a collaboration between the National Aeronautics and Space Administration (NASA) and the Japanese Aerospace Exploration Agency (JAXA), and other US and international partners, with the goal of monitoring the diurnal and seasonal variations in precipitation over the surface of the Earth. These measurements will be used to improve current climate models and weather forecasting, and enable improved storm and flood warnings. This paper gives an overview of the mission architecture and ...

The formulation of Level C requirements for guidance software was reported. Requirements for a PEG supervisor which controls all input/output interfaces with other processors and determines which PEG mode is to be utilized were studied in detail. A description of the two guidance modes for which Level C requirements have been formulated was presented. Functions required for proper execution of the guidance software were defined. The requirements for a navigation function that is used in the prediction logic of PEG mode 4 were discussed. It is c...

The formulation of Level C requirements for guidance software was reported. Requirements for a PEG supervisor which controls all input/output interfaces with other processors and determines which PEG mode is to be utilized were studied in detail. A description of the two guidance modes for which Level C requirements have been formulated was presented. Functions required for proper execution of the guidance software were defined. The requirements for a navigation function that is used in the prediction logic of PEG mode 4 were discussed. It is c...

This article develops a decision-theoretic methodology for the risk-adjusted mission value (RAMV) for selecting between alternative missions in the presence of uncertainty in the outcomes of the missions. This methodology permits trading off mission risk for mission value, something that probabilistic risk analysis cannot do unless it explicitly incorporates both mission value and risk aversion of the project management. The methodology, in its complete implementation, is consistent with the decision theory known as expected utility theory, alt...

No Abstract Available

No Abstract Available

The Mars Surface Penetrator mission was designed to provide a capability for multiple and diverse subsurface science measurements at a low cost. Equipment required to adapt the Pioneer Venus spacecraft for the Mars mission is described showing minor modifications to hardware. Analysis and design topics which are similar and/or identical to the Pioneer Venus program are briefly discussed.

Work at SAO was performed under the overall direction of Dr. Harvey Tananbaum, the Principal Investigator for the program. Dr. Jay Bookbinder was responsible for day to day program coordination at SAO and liaison with GSFC. Dr. Nicholas E. White served as GSFC Technical Officer for the Grant. The effort was directed at formulating the general characteristics and scientific requirements of the contemplated mission. While funding and therefore effort was limited, nonetheless SAO was involved in a broad range of activities. These activities were d...