File:MarsRadiationPressureCycles.jpg
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Summary
[edit]DescriptionMarsRadiationPressureCycles.jpg |
English: This graphic shows the daily variations in Martian radiation and atmospheric pressure as measured by NASA's Curiosity rover. As pressure increases, the total radiation dose decreases. When the atmosphere is thicker, it provides a better barrier with more effective shielding for radiation from outside of Mars. At each of the pressure maximums, the radiation level drops between 3 to 5 percent. The radiation level goes up at the end of the graph due to a longer-term trend that scientists are still studying.
The red line indicates the total dose rate of radiation from both charged particles and neutrons, as detected by Curiosity's Radiation Assessment Detector. The blue dots represent atmospheric pressure in units of Pascal (divided by four) taken by Curiosity's Rover Environmental Monitoring Station. The atmospheric data were scaled to fit in the same plot as the radiation data. The dosages and pressures are plotted over five sols, or Martian days, from the 21st sol of operations to the 26th. That corresponds to Aug. 26 to Sept. 1, 2012. Curiosity landed on Mars on Aug. 5, 2012. Radiation dose is given in arbitrary units to reflect the magnitude of the variations. Calibration of the absolute dose levels is ongoing. |
Date | |
Source | https://mars.nasa.gov/resources/4877/ |
Author | NASA/JPL-Caltech/SwRI |
Licensing
[edit]Public domainPublic domainfalsefalse |
This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) | ||
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current | 03:40, 8 October 2017 | 1,889 × 1,412 (497 KB) | Skyd4ncer33 (talk | contribs) | User created page with UploadWizard |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Width | 1,889 px |
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Height | 1,412 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Adobe Photoshop CS5 Macintosh |
File change date and time | 09:57, 15 November 2012 |
Exif version | 2.21 |
Color space | sRGB |
Date and time of digitizing | 07:13, 14 November 2012 |
Date metadata was last modified | 01:57, 15 November 2012 |
Unique ID of original document | xmp.did:B4470A06A22EE211B262866B23C9DA2B |
IIM version | 20,512 |