File:Oso3 small.gif

No higher resolution available.

Oso3_small.gif ‎(299 × 283 pixels, file size: 90 KB, MIME type: image/gif)

This is a file from the Wikimedia Commons. The description on its description page there is shown below.

Commons is a freely licensed media file repository. You can help.

Summary

DescriptionOso3 small.gif	English: The Third Orbiting Solar Observatory, OSO-3, was launched on 8 March 1967, into a nearly circular orbit of mean altitude 550 km, inclined at 33 degrees with respect to the equatorial plane. The satellite had two principle components, a continuously spinning wheel in which the hard X-ray experiment is mounted with a radial view, and a sail component which was served to acquire the sun during the orbit day. The attitude control system maintained the scan plane orientation to within a few degrees of the sun. The spin-period of the satellite of roughly 1.7 s allowed about 1 cm2/s exposure per revolution to sources on the scan plane. Celestial sources near the ecliptic plane such as Sco X-1 transited the instrument scan plane twice a year. Only real-time data were received from the satellite after the last tape recorder failure on 27 June 1968. The last data transmission occurred 10 November 1969. OSO-3 descended into the atmosphere on 4 April 1982.
Date	26 June 2003
Source	NASA's HEASARC: Observatories, Goddard Spaceflight Center
Author	HEASARC Director: Dr. Alan P. Smale HEASARC Associate Director: Dr. Roger Brissenden Responsible NASA Official: Phil Newman Web Curator: Meredith Gibb
Permission (Reusing this file)	Images produced by NASA are usually free of copyright [...]

The instrument flown on OSO-3 obtained extensive observations of solar flares, the diffuse component of cosmic X-rays, and the observation of a single flare episode from Sco X-1.

The gamma-ray instrument registered 621 events attributed to cosmic gamma- rays above 50 MeV. A complete sky survey showed that the celestial distribution of gamma-rays is highly anisotropic, being concentrated along the galactic equator. In addition, an extended region around the galactic center showed a higher measured intensity.

Licensing

	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: Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221. The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain. Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI.[1] See also {{PD-Hubble}} and {{Cc-Hubble}}. The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2] Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [3] The National Space Science Data Center (NSSDC) site has been known to host copyrighted content. Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."

File history

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

	Date/Time	Thumbnail	Dimensions	User	Comment
current	22:54, 12 September 2009		299 × 283 (90 KB)	Marshallsumter	{{Information \|Description={{en\|1=The Third Orbiting Solar Observatory, OSO-3, was launched on 8 March 1967, into a nearly circular orbit of mean altitude 550 km, inclined at 33 degrees with respect to the equatorial plane. The satellite had two principle

File usage

The following 3 pages use this file:

Global file usage

The following other wikis use this file:

Usage on en.wikipedia.org
- OSO 3
Usage on nl.wikipedia.org
- Lijst van ruimtevluchten naar de Zon
Usage on uk.wikipedia.org
- Гамма-астрономія
Usage on www.wikidata.org
- Q7073037