File:ALMA telescopes in training. (14276115706).jpg
![File:ALMA telescopes in training. (14276115706).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/f/fa/ALMA_telescopes_in_training._%2814276115706%29.jpg/800px-ALMA_telescopes_in_training._%2814276115706%29.jpg?20170923232950)
Original file (4,000 × 3,000 pixels, file size: 2.28 MB, MIME type: image/jpeg)
Captions
Captions
Summary
[edit]DescriptionALMA telescopes in training. (14276115706).jpg |
They build the telescopes and put them through their paces at the Operations Support Facility, which is base camp for ALMA at 2900 m above sea level, ~50 km from the main site. The red antenna in the background was built to test the pointing accuracy and receivers, but it's not strong enough to contaminate real observations. Most of the contractors, astronomers and engineers involved lived up here on site (thousands of people at one point, now down to hundreds), so as to not put too much strain on the historic town of San Pedro (pop. 4000), where I'm staying. Well, I'm 20 minutes out of town, but it's close enough. |
Date | |
Source | ALMA telescopes in training. |
Author | Catherine from Australia |
Licensing
[edit]![w:en:Creative Commons](https://upload.wikimedia.org/wikipedia/commons/thumb/7/79/CC_some_rights_reserved.svg/90px-CC_some_rights_reserved.svg.png)
![attribution](https://upload.wikimedia.org/wikipedia/commons/thumb/1/11/Cc-by_new_white.svg/24px-Cc-by_new_white.svg.png)
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
![]() |
This image was originally posted to Flickr by Sailor Coruscant at https://flickr.com/photos/30325243@N00/14276115706. It was reviewed on 23 September 2017 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
23 September 2017
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 23:29, 23 September 2017 | ![]() | 4,000 × 3,000 (2.28 MB) | Coekon (talk | contribs) | Transferred from Flickr via Flickr2Commons |
You cannot overwrite this file.
File usage on Commons
There are no pages that use 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 | Canon |
---|---|
Camera model | Canon IXUS 220HS |
Exposure time | 1/400 sec (0.0025) |
F-number | f/8 |
ISO speed rating | 100 |
Date and time of data generation | 04:29, 27 May 2014 |
Lens focal length | 4.3 mm |
Short title |
|
Orientation | Normal |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
File change date and time | 04:29, 27 May 2014 |
Exposure Program | Normal program |
Exif version | 2.3 |
Date and time of digitizing | 04:29, 27 May 2014 |
Meaning of each component |
|
Image compression mode | 3 |
APEX shutter speed | 8.65625 |
APEX aperture | 6 |
APEX exposure bias | 0 |
Maximum land aperture | 2.875 APEX (f/2.71) |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 16,393.442622951 |
Focal plane Y resolution | 16,393.442622951 |
Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Standard |
Lens used | 4.3-21.5 mm |
Rating (out of 5) | 0 |
IIM version | 2 |