File:GREECE Mission Launching Into Aurora (12934096334).jpg
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[edit]DescriptionGREECE Mission Launching Into Aurora (12934096334).jpg |
Caption: A NASA-funded sounding rocket launches into an aurora in the early morning of March 3, 2014, over Venetie, Alaska. The GREECE mission studies how certain structures – classic curls like swirls of cream in coffee -- form in the aurora. Credit: NASA/Christopher Perry More info: On March 3, 2014, at 6:09 a.m. EST, a NASA-funded sounding rocket launched straight into an aurora over Venetie, Alaska. The Ground-to-Rocket Electrodynamics – Electron Correlative Experiment, or GREECE, sounding rocket mission, which launched from Poker Flat Research Range in Poker Flat, Alaska, will study classic curls in the aurora in the night sky. The GREECE instruments travel on a sounding rocket that launches for a ten-minute ride right through the heart of the aurora reaching its zenith over the native village of Venetie, Alaska. To study the curl structures, GREECE consists of two parts: ground-based imagers located in Venetie to track the aurora from the ground and the rocket to take measurements from the middle of the aurora itself. At their simplest, auroras are caused when particles from the sun funnel over to Earth's night side, generate electric currents, and trigger a shower of particles that strike oxygen and nitrogen some 60 to 200 miles up in Earth's atmosphere, releasing a flash of light. But the details are always more complicated, of course. Researchers wish to understand the aurora, and movement of plasma in general, at much smaller scales including such things as how different structures are formed there. This is a piece of information, which in turn, helps paint a picture of the sun-Earth connection and how energy and particles from the sun interact with Earth's own magnetic system, the magnetosphere. GREECE is a collaborative effort between SWRI, which developed particle instruments and the ground-based imaging, and the University of California, Berkeley, measuring the electric and magnetic fields. The launch is supported by a sounding rocket team from NASA’s Wallops Flight Facility, Wallops Island, Va. The Poker Flat Research Range is operated by the University of Alaska, Fairbanks. “The conditions were optimal,” said Marilia Samara, principal investigator for the mission at Southwest Research Institute in San Antonio, Texas. “We can’t wait to dig into the data.” For more information on the GREECE mission visit: www.nasa.gov/content/goddard/nasa-funded-sounding-rocket-.NASA image use policy. NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission. Follow us on Twitter Like us on Facebook Find us on Instagram |
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Source | GREECE Mission Launching Into Aurora |
Author | NASA Goddard Space Flight Center from Greenbelt, MD, USA |
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This image was originally posted to Flickr by NASA Goddard Photo and Video at https://flickr.com/photos/24662369@N07/12934096334. It was reviewed on 17 September 2016 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
17 September 2016
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current | 20:42, 17 September 2016 | ![]() | 5,361 × 3,574 (8.7 MB) | Vanished Account Byeznhpyxeuztibuo (talk | contribs) | Transferred from Flickr via Flickr2Commons |
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Camera manufacturer | Canon |
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Camera model | Canon EOS 5D Mark II |
Exposure time | 50/1 sec (50) |
F-number | f/5 |
ISO speed rating | 1,600 |
Date and time of data generation | 06:09, 3 March 2014 |
Lens focal length | 14 mm |
Label | Approved |
Headline | GREECE Mission Launching Into Aurora |
Image title |
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Horizontal resolution | 240 dpi |
Vertical resolution | 240 dpi |
Software used | Adobe Photoshop Lightroom 4.4 (Windows) |
File change date and time | 13:40, 4 March 2014 |
Exposure Program | 9 |
Exif version | 2.3 |
Date and time of digitizing | 06:09, 3 March 2014 |
APEX shutter speed | −5.643856 |
APEX aperture | 4.643856 |
APEX exposure bias | 0 |
Maximum land aperture | 4 APEX (f/4) |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
DateTimeOriginal subseconds | 94 |
DateTimeDigitized subseconds | 94 |
Focal plane X resolution | 3,849.2117888965 |
Focal plane Y resolution | 3,908.1419624217 |
Focal plane resolution unit | inches |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Scene capture type | Standard |
Serial number of camera | 620303976 |
Lens used | EF8-15mm f/4L FISHEYE USM |
Date metadata was last modified | 08:40, 4 March 2014 |
Unique ID of original document | 5D9666EB303FA00D1B0BA1FAF7676FE1 |
IIM version | 4 |