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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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Charting a course to the sun: flight path control for Parker Solar Probe
The successful launch of the Parker Solar Probe (PSP) on August 12, 2018 with a Delta IV rocket and Star-48BV third stage has placed the spacecraft on a 7-year trajectory to study the Sun. The goals of PSP are to better characterize our solar environment and advance our understanding of the Sun at 9.86 Rs. A total of 42 trajectory correction maneuvers are planned. This paper documents trajectory correction maneuver analysis performed just prior to launch until just past the first solar encounter. The pre-launch analysis culminated in two final design cycles which analyzed 24 reference trajectories.
Orbital Debris Charts
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Orbital Debris Charts
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Orbital Debris Charts, March 2023
Data set for the number of objects in orbit, mass (kg) of objects in orbit, and the mass (metric tons) of objects in orbit. For missions from spacecraft, rocket bodies, related debris, and fragmented debris. Includes graphical representation for both the number and mass of the objects in orbit.
SEATEST 6 Detailed Final Report Charts
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Charted Changes in Salt-Marsh Areas and Related Carbon Emissions
Changes in salt-marsh areas around the world between 2000 and 2019 were quantified using satellite records, and the effects of these changes — collectively representing a slowing net global loss — on carbon emissions were estimated. Storm events were found to be key drivers of salt-marsh loss in the United States.
Orbital Debris Charts, April 2024
Data set for the number of objects in orbit, mass (kg) of objects in orbit, and the mass (metric tons) of objects in orbit. For missions from spacecraft, rocket bodies, related debris, and fragmented debris. Includes graphical representation for both the number and mass of the objects in orbit.
SEATEST 7 Detailed Final Report Charts
NASA Space Environment Analog for Training, Engineering, Science, and Technology (SEATEST) 7 detailed final report.
Orbital Debris Charts, January 2025
Data set for the number of objects in orbit, mass (kg) of objects in orbit, and the mass (metric tons) of objects in orbit. For missions from spacecraft, rocket bodies, related debris, and fragmented debris. Includes graphical representation for both the number and mass of the objects in orbit.
Adjusting padding of graphical charts representing data from multidimensional databases
An exemplary method of displaying a data visualization includes retrieving a dataset that includes a plurality of fields and displaying a graphical user interface with a plurality of shelves. The method further includes receiving user actions to: (i) associate a first field with a first shelf, and (ii) associate a second field with a second shelf; displaying, in accordance with the received user actions, a data visualization, where each data mark has a first size defined according to a default position of a displayed slidable affordance; and receiving an additional user action that moves the slidable affordance from the default position to a user-defined position. In response to receiving the additional user action, the method further includes updating the data visualization, where each data mark included in the updated data visualization has a second size, different from the first size, defined according to the user-defined position of the slidable affordance.
Displaying Your Data: Eliminating Chart Junk to Convey Clear and Useful Information.
Abstract not provided.
Naval Force Health Protection Program Review 2020 Abstract and Quad Chart.
Abstract not provided.