File:Lunar Orbiter High-Gain Antenna.jpg
Original file (5,125 × 3,648 pixels, file size: 2.4 MB, MIME type: image/jpeg)
Captions
Summary[edit]
DescriptionLunar Orbiter High-Gain Antenna.jpg |
English: The high-gain antenna dish was used to send the first high-res photos of the moon back to Earth. This is Serial Number 5.
Before Apollo, the U.S. flew robotic satellites around the moon with an ingenious analog film imaging system — long before digital cameras. The film was moved during exposure to compensate for the spacecraft velocity, which was estimated by an electro-optical sensor. The film had to be developed onboard the satellite in the onboard dark room (since the satellite would not return to Earth). The film was then raster scanned with a 6.5 micron beam and transmitted back to Earth with the dish antenna. (see diagrams on this in the comments below) The Lunar Orbiter program consisted of five Lunar Orbiters which returned photography of 99% of the surface of the Moon (near and far side) with resolution down to 1 meter. Altogether the Orbiters returned 2180 high resolution and 882 medium resolution frames. In the frame is a high resolution image recovered from Lunar Orbiter tape storage by Dennis Wingo in a pirate McDonalds at NASA Ames. It came from Lunar Orbiter IV in 1967, a full frame of 70mm film (details and annotations below).Español: Antena direccional utilizada en sondas del programa Lunar Orbiter. |
Date | |
Source | https://www.flickr.com/photos/jurvetson/50026281048/ |
Author | Steve Jurvetson |
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This image was originally posted to Flickr by jurvetson at https://flickr.com/photos/44124348109@N01/50026281048. It was reviewed on 22 June 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
22 June 2020
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 12:10, 22 June 2020 | 5,125 × 3,648 (2.4 MB) | BugWarp (talk | contribs) | Uploaded a work by Steve Jurvetson from https://www.flickr.com/photos/jurvetson/50026281048/ with UploadWizard |
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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 | SONY |
---|---|
Camera model | DSC-RX100M3 |
Exposure time | 1/30 sec (0.033333333333333) |
F-number | f/5 |
ISO speed rating | 160 |
Date and time of data generation | 13:57, 10 June 2020 |
Lens focal length | 8.8 mm |
Horizontal resolution | 350 dpi |
Vertical resolution | 350 dpi |
Software used | DSC-RX100M3 v1.20 |
File change date and time | 13:57, 10 June 2020 |
Exposure Program | Aperture priority |
Exif version | 2.3 |
Date and time of digitizing | 13:57, 10 June 2020 |
Meaning of each component |
|
Image compression mode | 2 |
APEX brightness | 4.92734375 |
APEX exposure bias | 0 |
Maximum land aperture | 1.6953125 APEX (f/1.8) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
DateTimeOriginal subseconds | 000 |
DateTimeDigitized subseconds | 000 |
Supported Flashpix version | 1 |
Color space | sRGB |
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 | 24 mm |
Scene capture type | Standard |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Lens used | Sony 24-70mm F1.8-2.8 |