Summary: data returned by the cassini spacecraft show that the satellites rhea, dione, enceladus, and mimas display different levels of surface modification and endogenic activity. However, explaining…
Ended Grant For Research Awarded Last action
- Contract number
- NNX09AP62A
- Awardee
-
Climate Central, Inc. UEI DL7AKF8JU745
- Awarding agency
-
Shared Services Center
National Aeronautics and Space Administration
- Obligated
- $0
Award facts
- Contract value 0% obligated
- $150,024.00 Current and potential, with all options
- Completion date 100% complete
- Current and potential, with all options
- Funding agency
- Goddard Space Center National Aeronautics and Space Administration
- NAICS code
- Not on record
- Set-aside
- No set-aside
- Competition
- Not Competed · 0 offers Only One Source
- Pricing
- Other
- Place of performance
- Princeton, NJ 08542, USA
Award details come from SAM.gov/FPDS.
Transactions
| Action | Obligated | Date |
|---|---|---|
| Other Administrative Action | $0 | |
| Other Administrative Action | $0 |
Description
Summary: data returned by the cassini spacecraft show that the satellites rhea, dione, enceladus, and mimas display different levels of surface modification and endogenic activity. However, explaining this diversity has not been straightforward. The reasons for the evolutionary differences between these satellites remain unclear due to uncertainties in the contribution of internal heat sources and cooling mechanisms. Measurements made by galileo suggest a subsurface ocean on europa. Consequently, IT has been suggested that hydrothermal plumes contribute to the formation of chaotic terrain by transporting heat from the mantle to the ICE shell. However, the ICE shell thickness and heat delivered are still debated topics. Determining the interior structure of each satellite and the processes that modified IT requires exploring the relationship between water-rock reactions, and different heating and cooling mechanisms. A combination of factors controls the evolutionary path of each of these ICY satellites. For example, initial 26AL and 60FE abundances, the time at which bodies accreted, the temperature of the material from which they evolved, heat liberated from chemical reactions, and whether heat is removed by solid-state convection or conduction all impact the thermal evolution. Furthermore, in addition to supplying heat, water-rock reactions modify oxidation states, mineralogies, and ICE/fluid compositions. We propose a comprehensive study that includes various heating and cooling mechanisms and kinetic reactions to obtain a global understanding of the interior and surface evolution of these satellites. The computer code maghnum will be used to model thermal diffusion, ICE to water phase change, differentiation, radiogenic and tidal heating, convection in porous rock or in ICE, and parameterized advection (in a subsurface ocean). Water-rock reactions can be included using the reaction package phreeqc. This work provides a set of thorough thermal and chemical evolution simulations that aid the interpretation of cassini and galileo data.
Quick answers
Who was awarded contract NNX09AP62A?
NNX09AP62A was awarded to Climate Central, Inc. by Shared Services Center (National Aeronautics and Space Administration) on July 13, 2010.
How much is contract NNX09AP62A worth?
The government has obligated $0 on NNX09AP62A. Its current value, with exercised options, is $150,024.
Which agency awarded contract NNX09AP62A?
Shared Services Center (National Aeronautics and Space Administration) awarded NNX09AP62A, with funding from Goddard Space Center (National Aeronautics and Space Administration).
Was contract NNX09AP62A competed?
The extent of competition for NNX09AP62A was not competed. The government received 0 offers.
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