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Archives Center, National Museum of American History
Guide to the Andrew Chi Atomic Clocks Collection
Summary
- Collection ID:
- NMAH.AC.1264
- Creators:
-
Chi, Andrew
- Dates:
-
1959-1980
- Languages:
-
English.
- Physical Description:
-
2 Cubic feet5 boxes
- Repository:
The collection consists of the papers of scientist Andrew Chi, documenting his work on the Cesium 133 atomic clock, and its relevance to the Global Positioning System.
Scope and Contents
Scope and Contents
The collections contains correspondence, memorandum, and journal articles related to the Cesium 133 atomic clock. Many of the documents relate to the U.S. Study Group 7, International Radio Consultative Committee (CCIR) which was formed to prepare documents to dtermine the United States position in relating to worldwide service of standard frequency and time-signal emmssions. The CCIR is an advisory arm on technical matters to the International Telecommunicaytions Union (ITU).
Arrangement
Arrangement
The collection is arranged into two series.
Series 1: U.S. Study Group 7, International Radio Consultative Committee (CCIR) Materials, 1964-1980
Series 2: Other Materials, 1959-1977
Biographical / Historical
Biographical / Historical
Andrew R. Chi was head of the Timing Systems Section, Space Data Control Branch, at the Goddard Space Flight Center.
Administration
Author
Alison Oswald
Immediate Source of Acquisition
Immediate source of acquisition unknown.
Processing Information
Collection processed by Alison Oswald, archivist, 2023.
Custodial History
Collection was found in the Division of Medicine and Science, National Museum of American History, in 2012.
Using the Collection
Conditions Governing Access
Collection is open for research but is stored off-site and special arrangements must be made to work with it. Contact the Archives Center for information at archivescenter@si.edu or 202-633-3270.
Preferred Citation
Andrew Chi Atomic Clocks Collection, Archives Center, National Museum of American History.
Conditions Governing Use
Collection items available for reproduction, but the Archives Center makes no guarantees concerning copyright restrictions. Other intellectual property rights may apply. Archives Center cost-recovery and use fees may apply when requesting reproductions.
Keywords
| Keyword Terms | Keyword Types | ||
|---|---|---|---|
| Atomic clocks | Topical | Search Smithsonian Collections | Search ArchiveGrid |
| Charts | Genre Form | Search Smithsonian Collections | Search ArchiveGrid |
| Correspondence -- 20th century | Genre Form | Search Smithsonian Collections | Search ArchiveGrid |
| Graphs | Genre Form | Search Smithsonian Collections | Search ArchiveGrid |
| Memorandums -- 1950-2000 | Genre Form | Search Smithsonian Collections | Search ArchiveGrid |
| Proceedings | Genre Form | Search Smithsonian Collections | Search ArchiveGrid |
| Reports -- 20th century | Genre Form | Search Smithsonian Collections | Search ArchiveGrid |
| United States. National Aeronautics and Space Administration | Corporate Name | Search Smithsonian Collections | Search ArchiveGrid |
Archives Center, National Museum of American History
P.O. Box 37012
Suite 1100, MRC 601
Washington, D.C. 20013-7012
Business Number: Phone: 202-633-3270
Fax Number: Fax: 202-786-2453
archivescenter@si.edu
