File:330-ps-8339-usn-709827 15781382684 o.jpg
![File:330-ps-8339-usn-709827 15781382684 o.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/c/cf/330-ps-8339-usn-709827_15781382684_o.jpg/799px-330-ps-8339-usn-709827_15781382684_o.jpg?20180709194249)
Original file (2,968 × 2,228 pixels, file size: 545 KB, MIME type: image/jpeg)
Captions
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Summary
[edit]Description330-ps-8339-usn-709827 15781382684 o.jpg |
English: 330-PS-8339 (USN 709827): Mr. Walter R. Silvester, one of the engineers assigned to the Earth Satellite Project, U.S. Naval Research Laboratory, Washington, D.C., adjusts the minitrack precision time standard equipment being used in the minitrack radio tracking stations that will track the scientific Earth satellite as it passes around the Earth sometime during the International Geophyiscal Year. The time-standard equipment is so accurate that it will enable Naval Research Laboratory scientists to coordinate their timing devices within one thousandth of a second at much of the radio tracking sties. The mini-track stations will receive information from the satellite as it passes over the Earth and relay it to a computing station in Washington, D.C., where orbital calculations will be made. Since these calculations are relayed to scientists all over the world for their use in observing or tacking the satellite, extremely close coordination of time at the various stations is necessary. The project is being sponsored by the National Academy of Sciences and the National Science Foundation as part of the U.S. program for participation in the International Geophysical Year, April 25, 1957. (1/29/2015). |
Date | |
Source | National Museum of the U.S. Navy |
Author |
This file is lacking author information.
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Licensing
[edit]Public domainPublic domainfalsefalse |
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This image is a work of a U.S. military or Department of Defense employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain in the United States.
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current | 19:42, 9 July 2018 | ![]() | 2,968 × 2,228 (545 KB) | Tyler de Noche (talk | contribs) |
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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 | NIKON CORPORATION |
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Camera model | NIKON D80 |
Exposure time | 1/250 sec (0.004) |
F-number | f/8 |
ISO speed rating | 1,600 |
Date and time of data generation | 11:52, 29 January 2015 |
Lens focal length | 18 mm |
Width | 3,872 px |
Height | 2,592 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop CS6 (Windows) |
File change date and time | 11:06, 30 January 2015 |
Y and C positioning | Co-sited |
Exposure Program | Not defined |
Exif version | 2.21 |
Date and time of digitizing | 11:52, 29 January 2015 |
Meaning of each component |
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Image compression mode | 4 |
APEX shutter speed | 7.965784 |
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 |
DateTime subseconds | 50 |
DateTimeOriginal subseconds | 50 |
DateTimeDigitized subseconds | 50 |
Supported Flashpix version | 1 |
Color space | sRGB |
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 | 27 mm |
Scene capture type | Standard |
Scene control | High gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Serial number of camera | 3073408 |
Lens used | 12.0-24.0 mm f/4.0 |
Date metadata was last modified | 06:06, 30 January 2015 |
Unique ID of original document | 6F7DE9F15C082033EC7737A8C163B745 |