View source for Formosat-1

{{Infobox spaceflight
|name =Formosat-1<br />ROCSAT-1<br/>福爾摩沙衛星一號
|image = [[File:Formosat-1.jpg|300px]]
|operator=[[National Space Organization (Taiwan ROC)|National Space Organization]]
|mission_type = Science
|launch_date= Jan 27, 1999
|launch_rocket = ATHENA-1/LMLV1
|decay_date = 22 May 2023<ref>{{cite web |url=https://www.n2yo.com/satellite/?s=25616 |title=ROCSAT 1 |work=N2YO.com |date=22 May 2023 |access-date=4 July 2023}}</ref>
|mission_duration = 5.5 years
|BOL_mass = 401 kg 
|website = [https://www.nspo.narl.org.tw/tw2015/projects/FORMOSAT-1/program-description.html Formosat-1]
|orbit_reference = Geocentric
|orbit_inclination = 35° 
|orbit_period = 96.7 mins
}}

'''Formosat-1''' ({{Lang-zh|t=福爾摩沙衛星一號|p=Fúěrmóshā wèixīng yīhào}}, formerly known as '''ROCSAT-1''') was an [[Earth observation satellite]] operated by the National Space Program Office (NSPO; now the [[Taiwan Space Agency]]) of the [[Taiwan|Republic of China]] ([[Taiwan]]) to conduct observations of the [[ionosphere]] and [[oceans]]. The spacecraft and its instrumentation were developed jointly by NSPO and [[TRW Inc.|TRW]] using TRW's [[Lightsat]] bus, and was launched from [[Cape Canaveral Air Force Station]], [[US]], by [[Lockheed Martin]] on January 27, 1999.<ref>{{cite web|title=FORMOSAT-1: Low-earth-orbit scientific experimental satellite|url=https://www.nspo.narl.org.tw/history_prog.php?c=20030403&ln=en|access-date=November 24, 2022|publisher=Taiwan National Space Organization}}</ref> Formosat-1 provided 5½ years of operational service. The spacecraft ended its mission on June 17, 2004 and was decommissioned on July 16, 2004.<ref>{{cite web|title=FormoSat-1|url=https://www.eoportal.org/satellite-missions/formosat-1#ecp-experimental-communication-payload |access-date=November 24, 2022|publisher=eoPortal.org}}</ref><ref>{{cite journal|first1=L. |last1=Wu|first2=S.-S. |last2=Chen|first3=J. Ju-Chen |last3=Yaung|title=Space Program in Taiwan|journal=Proceedings of ASC (Asian Space Conference), Chiang Mai, Thailand|date=November 26, 2004}}</ref>

==Technical details==

===Spacecraft===
*Weight: 401&nbsp;kg
*Shape: Hexagonal
*Dimensions
**Height: 2.1 m
**Diameter: 1.1 m
*Solar arrays: Two, 1.16 x 2.46 m
*Electrical power: 450 watts

===Instrumentation===
*Experimental Communication Payload (ECP)
*Ionosphere Plasma Electrodynamics Instrument (IPEI)
*Ocean Color Imager (OCI)

===Orbit===
*Altitude: 600&nbsp;km
*Type: Circular
*Inclination: 35 degrees

==See also==
{{Portal|Spaceflight}}
*[[FORMOSAT-2]]
*[[FORMOSAT-3/COSMIC]]

==References==
{{Reflist}}

==External links==
*[http://www.globalsecurity.org/space/world/taiwan/comm.htm ROCSAT-1 at GlobalSecurity]

{{Formosat}}
{{Orbital launches in 1999}}

[[Category:Earth observation satellites of Taiwan]]
[[Category:Spacecraft launched in 1999]]
[[Category:First artificial satellites of a country]]


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