File:Landsat-7 Scan Line Corrector operation.jpg

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search

Landsat-7_Scan_Line_Corrector_operation.jpg (290 × 389 pixels, file size: 68 KB, MIME type: image/jpeg)

This file is from Wikimedia Commons and may be used by other projects. The description on its file description page there is shown below.

Summary

Description
English: Landsat 7 Scan Line Corrector operation from the Landsat 7 Science Data Users Handbook
  • The Scan Line Corrector (SLC) is an electro-optical mechanism composed of two parallel nickel-plated beryllium mirrors set at an angle on a shaft. The shaft, driven by a torquer which has primary and redundant tachometers, rotates about an axis normal to the axis of the scan mirror in a sawtooth fashion. The SLC is positioned behind the primary optics and compensates for the along track motion of the spacecraft that occurs during an active SMA cross track scan. A rectilinear scan pattern is produced using the SLC instead of the zig-zag pattern that would be produced without it.
Date Unknown date
Source http://landsathandbook.gsfc.nasa.gov/payload/prog_sect3_3.html#section3.3.3
Author NASA/Goddard Space Flight Center

Licensing

Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
Warnings:

Original upload log

The original description page was here. All following user names refer to en.wikipedia.
  • 2006-12-20 04:30 Seventypercent 300×399× (40508 bytes) {{PD-USGov-NASA}}

Captions

Add a one-line explanation of what this file represents

Items portrayed in this file

depicts

data size

69,134 byte

height

389 pixel

width

290 pixel

media type

image/jpeg

checksum

5381669c2657258be231ca57e6a531a9d57de84b

determination method or standard: SHA-1

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current02:23, 23 June 2014Thumbnail for version as of 02:23, 23 June 2014290 × 389 (68 KB)wikimediacommons>Ras67cropped

The following page uses this file:

Retrieved from "https://wiki.sarg.dev/index.php/File:Landsat-7_Scan_Line_Corrector_operation.jpg"