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Migrate {{Infobox NRHP}} coordinates parameters to {{Coord}}, see Wikipedia:Coordinates in infoboxes
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{{Use mdy dates|date=August 2023}}
{{Infobox NRHP
| locmapin = USA Los Angeles Metropolitan Area#California#USA
| area = less than one acre
| designated_nrhp_type = October 3, 1985<ref name=nhl_summary>{{Cite web | title = Twenty-Five-Foot Space Simulator | work = National Historic Landmarks Quioklinks | publisher = [[National Park Service]] | url = http://tps.cr.nps.gov/nhl/detail.cfm?ResourceId=2073&ResourceType=Structure | access-date = 18 March 2012 | url-status = dead | archive-url = https://web.archive.org/web/20101213025605/http://tps.cr.nps.gov/nhl/detail.cfm?ResourceId=2073&ResourceType=Structure | archive-date = 13 December 2010 }}</ref>
▲ | added = October 3, 1985<ref name="nris">{{NRISref|2007a}}</ref>
▲ | refnum=85002812
}}
The '''Twenty-Five-Foot Space Simulator''' is
The first facility of its type, the chamber served as an example for other countries seeking to establish space programs.<ref name="nrhpinv2">{{Cite web|author=Harry A. Butowsky|date=May 15, 1984|title=National Register of Historic Places Inventory-Nomination: Twenty-Five Foot Space Simulator|url={{NHLS url|id=85002812}}|format=pdf|publisher=National Park Service}} and {{NHLS url|id=85002812|title=''Accompanying 2 photos, exterior and interior, from 1983''|photos=y}} {{small|(32 KB)}}</ref> It was declared a [[National Historic Landmark]] in 1985 and is on the [[National Register of Historic Places]].<ref name
==Description==
The Twenty-Five-Foot Space Simulator is a stainless-steel cylinder {{convert|85|ft|m}} in height and {{convert|27|ft|m}} in diameter. A doorway {{convert|15|ft|m}} wide and {{convert|25|ft|m}} high provides access for bringing test objects and equipment into the chamber; a personnel access door is built into the larger doorway. Its walls and floor are lined with cooling shrouds that help provide a controllable temperature range from {{convert|-320|F|C}} to {{convert|200|F|C}}. A series of lamps, lenses, and mirrors can irradiate the chamber with a directed beam of simulated solar energy in a variety of patterns and strengths. The chamber can be depressurized to 5×10<sup>−7</sup> [[torr]]. Test objects can be mounted with a number of attachment points and methods. The chamber is mounted on a seismically isolated foundation.<ref name="nrhpinv2" /> The chamber requires about 75 minutes to achieve a space-like environment, and about 2{{frac|1|2}} hours to return to a normal environment.
Next to the chamber is a [[clean room]] in which equipment can be prepared for testing.<ref name="nrhpinv2" />
==See also==
*[[List of National Historic Landmarks in California]]
*[[Space Environment Simulation Laboratory]], built in 1965 at the [[Johnson Space Center]] in Texas
==References==
{{Reflist}}
{{Commons category|JPL Space Simulator}}
{{National Register of Historic Places}}
{{Spaceflight landmarks}}
{{authority control}}
[[Category:Jet Propulsion Laboratory]]
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[[Category:Buildings and structures completed in 1961]]
[[Category:Buildings and structures in Pasadena, California]]
[[Category:1961 establishments in California]]
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