File:A supercomputer's home in the Chajnantor Plateau (potw2429a).tiff
Original file (5,935 × 3,957 pixels, file size: 37.79 MB, MIME type: image/tiff)
Captions
Summary
[edit]DescriptionA supercomputer's home in the Chajnantor Plateau (potw2429a).tiff |
English: This photo shows the buildings of the ALMA Array Operations Site in the Chilean Atacama Desert surrounded by snow. Wait a minute — there’s snow in the desert? The Atacama Desert is one of the driest places in the world — more specifically, the driest place on Earth outside the polar regions in terms of average rainfall. The very low levels of water vapour in the atmosphere and the almost constantly clear skies make it an ideal location for astronomical observations. However, as this photo from August 2023 — wintertime in Chile — shows, snow can occasionally visit the desert. The Atacama Large Millimeter/sub-millimeter Array (ALMA), in which ESO is a partner, is one of the largest astronomical projects in the world. The telescope’s 66 radio antennas are located at the Array Operations Site (AOS) on Llano de Chajnantor, an impressive 5000 metres above sea level and about 40 km east of San Pedro de Atacama. The large yellow truck in this picture is one of the two transporters used to periodically rearrange the antennas into different configurations.The telescope’s signals are processed in a supercomputer in the nearby AOS Technical Building, pictured above — one of the highest-altitude buildings in the world! The digitised signals are then transmitted to the data storage facilities housed at the Operations Support Facility (OSF) site, at a more benign altitude of 2900 metres. |
||
Date | 6 May 2024 (upload date) | ||
Source |
|
||
Author | S. Otarola/ESO | ||
Other versions |
|
Licensing
[edit]This media was created by the European Southern Observatory (ESO).
Their website states: "Unless specifically noted, the images, videos, and music distributed on the public ESO website, along with the texts of press releases, announcements, pictures of the week, blog posts and captions, are licensed under a Creative Commons Attribution 4.0 International License, and may on a non-exclusive basis be reproduced without fee provided the credit is clear and visible." To the uploader: You must provide a link (URL) to the original file and the authorship information if available. | |
This file is licensed under the Creative Commons Attribution 4.0 International license.
|
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 07:15, 6 May 2024 | 5,935 × 3,957 (37.79 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://www.eso.org/public/archives/images/original/potw2429a.tif via Commons:Spacemedia |
You cannot overwrite this file.
File usage on Commons
The following page uses this file:
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.
Camera manufacturer | NIKON CORPORATION |
---|---|
Camera model | NIKON D7100 |
Author | SERGIO OTAROLA |
Exposure time | 1/1,000 sec (0.001) |
F-number | f/8 |
ISO speed rating | 200 |
Date and time of data generation | 08:17, 6 January 2023 |
Lens focal length | 70 mm |
Width | 5,935 px |
Height | 3,957 px |
Bits per component |
|
Compression scheme | LZW |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Number of rows per strip | 14 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop 24.0 (Windows) |
File change date and time | 21:13, 9 January 2023 |
Exposure Program | Aperture priority |
Exif version | 2.31 |
Date and time of digitizing | 08:17, 6 January 2023 |
APEX shutter speed | 9.965784 |
APEX aperture | 6 |
APEX exposure bias | 0 |
Maximum land aperture | 4 APEX (f/4) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
Color space | sRGB |
Focal plane X resolution | 2,558.641204834 |
Focal plane Y resolution | 2,558.641204834 |
Focal plane resolution unit | 3 |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 105 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |