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Nephanalysis, Tiros Meteorological Satellite


Display Status:

This object is on display in the James S. McDonnell Space Hangar room at Steven F. Udvar-Hazy Center in Chantilly, VA.

Collection Item Summary:

In April of 1960, Weather Bureau personnel at Army Signal Corp's Fort Monmouth prepared this nephanalysis (cloud map) from data returned by the TIROS I (Television Infrared Observation Satellite), the first weather satellite. It was the first satellite-based nephanalysis distributed to the meteorological community and signaled the beginning of space-based weather observation.

TIROS I was the world's first weather satellite, allowing forecasters and scientists to see directly large-scale features of the Earth's weather systems. By the mid-1960s, the TIROS program launched a series of satellites to provide routine, daily weather observations. The program is still in operation today and, in conjunction with other weather satellites, has made space-based weather observations a commonplace of contemporary life.

This artifact is autographed by the Weather Bureau personnel who prepared it. J. Gordon Vaeth donated it to the Museum in 1965.

Collection Item Long Description:

Data Source

National Air and Space Museum


Do not reproduce without permission from the Smithsonian Institution, National Air and Space Museum


United States Weather Bureau

Credit Line

Gift of J. Gordon Vaeth


Nephanalysis: paper; Frame: wood


2-D - In Frame (H x W x D): 25.4 x 33cm (10 x 13 in.)

See more items in

National Air and Space Museum Collection

Country of Origin

United States of America



Inventory Number