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The Spacecraft Tracking and Data (Acquisition) Network (STADAN or STDN) was established by NASA in the early 1960s to satisfy the requirement for long-duration, highly available space-to-ground communications. The network was the “follow-on” to the earlier
Minitrack The Minitrack Network was the first U.S. satellite tracking network to become operational, in 1957. It was used to track the flights of Sputnik, Vanguard, Explorer, and other early space efforts. Minitrack was the progenitor of Spacecraft Tracki ...
, which tracked the flights of Sputnik, Vanguard, Explorer, and other early space efforts (1957–1962). Real-time operational control and scheduling of the network was provided by the Network Operations Control Center (NOCC) at the
Goddard Space Flight Center The Goddard Space Flight Center (GSFC) is a major NASA space research laboratory located approximately northeast of Washington, D.C. in Greenbelt, Maryland, United States. Established on May 1, 1959 as NASA's first space flight center, GSFC emp ...
(GSFC) in Greenbelt, Maryland. Consisting of parabolic dish antennas and telephone switching equipment deployed around the world, the STADAN provided space-to-ground communications for approximately 15 minutes of a 90-minute orbit period. This limited contact period sufficed for uncrewed spacecraft, but crewed spacecraft require a much higher data collection time. In May 1971 STADAN was consolidated with the
Manned Space Flight Network The Manned Space Flight Network (abbreviated MSFN, pronounced "''misfin''") was a set of tracking stations built to support the American Mercury, Gemini, Apollo, and Skylab space programs. There were two other NASA space communication networks at ...
(MSFN) to form the Spaceflight Tracking and Data Network (STDN).


Stations

STADAN stations were located: *
Goddard Space Flight Center The Goddard Space Flight Center (GSFC) is a major NASA space research laboratory located approximately northeast of Washington, D.C. in Greenbelt, Maryland, United States. Established on May 1, 1959 as NASA's first space flight center, GSFC emp ...
in
Greenbelt, Maryland Greenbelt is a city in Prince George's County, Maryland, United States, and a suburb of Washington, D.C. At the 2020 census, the population was 24,921. Greenbelt is the first and the largest of the three experimental and controversial New Deal ...
, US (ETC) - Network Operations Control Center *
Orroral Valley Tracking Station The Orroral Valley tracking station, was Earth station in Australia, supported Earth-orbiting satellites, as part of NASA's Spacecraft Tracking and Data Acquisition Network (STADAN). It was located approximately 50 km south of Canberra ...
in
Canberra, Australia Canberra ( ) is the capital city of Australia. Founded following the federation of the colonies of Australia as the seat of government for the new nation, it is Australia's largest inland city and the eighth-largest city overall. The ci ...
(ORR) * Carnarvon, Australia (CRO) *
Cooby Creek Tracking Station Cooby Creek Tracking Station, an Earth station in Australia, was located north of Toowoomba, Queensland. Built near the Cooby Dam, the station was located in a radio quiet zone, where there were no powerlines and other sources of potent ...
in
Toowoomba, Queensland Toowoomba ( , nicknamed 'The Garden City' and 'T-Bar') is a city in the Toowoomba Region of the Darling Downs, Queensland, Australia. It is west of Queensland's capital city Brisbane by road. The urban population of Toowoomba as of the 2021 C ...
, Australia *
Johannesburg, South Africa Johannesburg ( , , ; Zulu and xh, eGoli ), colloquially known as Jozi, Joburg, or "The City of Gold", is the largest city in South Africa, classified as a megacity, and is one of the 100 largest urban areas in the world. According to Demo ...
(BUR) * Tananarive, Madagascar (TAN) *
East Grand Forks, Minnesota East Grand Forks (also known as EGF) is a city in Polk County, Minnesota, United States. The population was 9,176 at the 2020 Census, making it the largest community in Polk County. It is located in the Red River Valley region along the easte ...
, US * Shoe Cove,
Newfoundland and Labrador, Canada Newfoundland and Labrador (; french: Terre-Neuve-et-Labrador; frequently abbreviated as NL) is the easternmost province of Canada, in the country's Atlantic region. The province comprises the island of Newfoundland and the continental region ...
(NFL) *
Fort Myers, Florida Fort Myers (or Ft. Myers) is a city in southwestern Florida and the county seat and commercial center of Lee County, Florida, United States. The Census Bureau's Population Estimates Program calculated that the city's population was 92,245 in 20 ...
, US *
Quito, Ecuador Quito (; qu, Kitu), formally San Francisco de Quito, is the capital and largest city of Ecuador, with an estimated population of 2.8 million in its urban area. It is also the capital of the province of Pichincha. Quito is located in a valley o ...
(QUI) *
Lima, Peru Lima ( ; ), originally founded as Ciudad de Los Reyes (City of The Kings) is the capital and the largest city of Peru. It is located in the valleys of the Chillón, Rímac and Lurín Rivers, in the desert zone of the central coastal part of ...
*
Santiago, Chile Santiago (, ; ), also known as Santiago de Chile, is the capital and largest city of Chile as well as one of the largest cities in the Americas. It is the center of Chile's most densely populated region, the Santiago Metropolitan Region, whose ...
(AGO) * Antofagasta, Chile *
Fairbanks, Alaska Fairbanks is a home rule city and the borough seat of the Fairbanks North Star Borough in the U.S. state of Alaska. Fairbanks is the largest city in the Interior region of Alaska and the second largest in the state. The 2020 Census put the p ...
, US (ULA) * Winkfield, England (WNK) *
Rosman, North Carolina Rosman is a town in Transylvania County, North Carolina, United States. The population was 576 at the 2010 census. The northern terminus of U.S. Route 178 is less than one mile northwest of Rosman on U.S. Route 64. The Pisgah Astronomical Rese ...
, US (ROS) *
Goldstone Deep Space Communications Complex The Goldstone Deep Space Communications Complex (GDSCC), commonly called the Goldstone Observatory, is a satellite ground station located in Fort Irwin in the U.S. state of California. Operated by NASA's Jet Propulsion Laboratory (JPL), its ...
in Goldstone, California, US (GDS) *
Barstow, California Barstow is a city in San Bernardino County, California, in the Mojave Desert of Southern California. Located in the Inland Empire region of California, the population was 25,415 at the 2020 census. Barstow is an important crossroads for the ...
, US * Brown Field, California near
Chula Vista Chula Vista (; ) is the second-largest city in the San Diego metropolitan area, the seventh largest city in Southern California, the fifteenth largest city in the state of California, and the 78th-largest city in the United States. The popul ...
, US *
Pakistan Pakistan ( ur, ), officially the Islamic Republic of Pakistan ( ur, , label=none), is a country in South Asia. It is the world's fifth-most populous country, with a population of almost 243 million people, and has the world's second-lar ...
* Crete, Greece * Ascension Island, (
South Atlantic Ocean The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth's surface and about 29% of its water surface area. It is known to separate the "Old World" of Africa, Europe an ...
) *
Cooper's Island, Bermuda Cooper's Island is part of the chain which makes up Bermuda. It is located in St. George's Parish, in the northeast of the territory. The 77-acre (31 hectare) island is located in the northeast of Castle Harbor. Due to reclamation work, it is n ...
(BDA)


Later developments

Most of the STADAN stations were phased out in the early 1980s, as the
Tracking and Data Relay Satellite System The U.S. Tracking and Data Relay Satellite System (TDRSS) is a network of American communications satellites (each called a tracking and data relay satellite, TDRS) and ground stations used by NASA for space communications. The system was des ...
(TDRS), took over most of the work of tracking satellites in
low Earth orbit A low Earth orbit (LEO) is an orbit around Earth with a period of 128 minutes or less (making at least 11.25 orbits per day) and an eccentricity less than 0.25. Most of the artificial objects in outer space are in LEO, with an altitude never mor ...
."Tracking-station closings scheduled," ''Science News,'' Vol. 117, No. 2. (Jan. 12, 1980), p. 27. Another network, the
Deep Space Network The NASA Deep Space Network (DSN) is a worldwide network of American spacecraft communication ground segment facilities, located in the United States (California), Spain (Madrid), and Australia (Canberra), that supports NASA's interplanetary ...
(DSN), interacted with crewed craft higher than 10,000 miles from Earth, such as the
Apollo Apollo, grc, Ἀπόλλωνος, Apóllōnos, label=genitive , ; , grc-dor, Ἀπέλλων, Apéllōn, ; grc, Ἀπείλων, Apeílōn, label=Arcadocypriot Greek, ; grc-aeo, Ἄπλουν, Áploun, la, Apollō, la, Apollinis, label= ...
missions, in addition to its primary mission of data collection from deep space probes.


See also

*
NASCOM The Nascom 1 and 2 were single-board computer kits issued in the United Kingdom in 1977 and 1979, respectively, based on the Zilog Z80 and including a keyboard and video interface, a serial port that could be used to store data on a tape cassette ...


External links


"STDN User's Manual"
-
Goddard Space Flight Center The Goddard Space Flight Center (GSFC) is a major NASA space research laboratory located approximately northeast of Washington, D.C. in Greenbelt, Maryland, United States. Established on May 1, 1959 as NASA's first space flight center, GSFC emp ...
, (NASA-TM-X-72932) STDN User's Manual N75-78163, Baseline Document (NASA) 124 pages, UNCLAS 00/98 03939
GSFC X-202067-26
William R. Corliss (1967). Evolution of the Satellite Tracking And Data Acquisition Network (STADAN).
NASA CR-140390
- William R. Corliss (June 1974). Histories of the Space Tracking and Data Acquisition Network (STADAN), the Manned Space Flight Network (MSFN), and the NASA Communications Network (NASCOM).
NASA SP-2007-4233
- Sunny Tsiao (2007). "Read You Loud and Clear!" The Story of NASA's Spaceflight Tracking and Data Network.


STADAN Station in Shoe Cove, Newfoundland

"NASA Directory of Observation Station Locations"
-
Goddard Space Flight Center The Goddard Space Flight Center (GSFC) is a major NASA space research laboratory located approximately northeast of Washington, D.C. in Greenbelt, Maryland, United States. Established on May 1, 1959 as NASA's first space flight center, GSFC emp ...
, (NASA-TM-X-69902) NASA Directory of Observation Station Locations, 274 pages


Notes

{{reflist Goddard Space Flight Center NASA radio communications and spacecraft tracking facilities