File:USCGS-E134.jpg
Original file (1,668 × 1,622 pixels, file size: 1.61 MB, MIME type: image/jpeg)
Captions
Summary
[edit]E 134, a U.S. Coast & Geodetic Survey (now NGS) benchmark located on North Avenue in Chicago, IL. The crossed lines at the center of the disk mark an altitude of 598.95 feet above mean sea level. The disk is stamped with its designation (E 134) and the year in which it was set (1947). A complete datasheet for this benchmark can be found at the NGS website.
Photograph taken 17 April 2004
Camera location | 41° 54′ 37.9″ N, 87° 40′ 41.9″ W | View this and other nearby images on: OpenStreetMap | 41.910528; -87.678306 |
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© 2004, Jeremy Atherton.
This image has been assessed using the Quality image guidelines and is considered a Quality image.
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File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 02:35, 31 October 2006 | 1,668 × 1,622 (1.61 MB) | JeremyA (talk | contribs) | larger version | |
05:03, 3 January 2006 | 600 × 600 (155 KB) | JeremyA (talk | contribs) | E 134, a U.S. Coast & Geodetic Survey (now NGS) benchmark located on North Avenue in Chicago, IL. The crossed lines at the center of the disk mark an altitude of 598.95 feet above mean sea level. The disk is stamped with it |
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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.
Camera manufacturer | Canon |
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Camera model | Canon PowerShot S400 |
Exposure time | 1/250 sec (0.004) |
F-number | f/7.1 |
Date and time of data generation | 12:36, 17 April 2004 |
Lens focal length | 7.40625 mm |
JPEG file comment | AppleMark |
Orientation | Normal |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | QuickTime 7.1.3 |
File change date and time | 20:32, 30 October 2006 |
Y and C positioning | Centered |
Exif version | 2.2 |
Date and time of digitizing | 12:36, 17 April 2004 |
APEX shutter speed | 7.96875 |
APEX aperture | 5.65625 |
APEX exposure bias | 0 |
Maximum land aperture | 2.96875 APEX (f/2.8) |
Metering mode | Pattern |
Flash | Flash did not fire, auto mode |
Color space | sRGB |
Sensing method | One-chip color area sensor |
Structured data
Items portrayed in this file
depicts
41°54'37.901"N, 87°40'41.902"W
0.004 second
7.1
7.40625 millimetre
image/jpeg
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