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OTS-SAT — 12U CubeSat, first joint satellite of the Organization of Turkic States (also reported as "TDT-SAT")

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OTS-SAT — 12U CubeSat, first joint satellite of the Organization of Turkic States (also reported as "TDT-SAT")

Illustration
Country and region
Kazakhstan (lead builder), with Türkiye, Azerbaijan and Uzbekistan · Central Asia, the Caucasus and Mongolia
Lead organisations
Kazakhstan Gharysh Sapary; Organization of Turkic States
Last milestone
First Framework Agreement on Developing Cooperation Capacity in the Space Industry within the OTS signed by Kazakhstan, Türkiye, Azerbaijan and Uzbekistan in Antalya, 6 Oct 2026 (at the 77th International Astronautical Congress); Ankara Declaration of the 13th OTS Summit (30 Oct 2026) notes production is complete (10 Apr 2026)
Next milestone
Completion of remaining tests in 2026; launch from Baikonur Cosmodrome, Kazakhstan, second half of 2027 (launch vehicle not published) (late 2026 or early 2027 (to confirm))

Why it matters

The first shared Central Asian satellite, testing whether Kazakhstan can sell satellite building and operations to its neighbours.

OTS-SAT is a small technology-demonstration satellite in the 12U CubeSat format (a standard box of twelve 10 cm units). It is the first practical space project of the Organization of Turkic States (OTS), whose members are Azerbaijan, Kazakhstan, Kyrgyzstan, Türkiye and Uzbekistan, with Hungary and Turkmenistan as observers. Its stated purpose is to test new satellite subsystems in orbit, share technology between member states, pool research capacity and train young engineers. One Kazakh source also mentions a camera and research instruments for imaging farmland.

Origins: OTS heads of space agencies have met each year since about 2022 under a "Space Technology Conference" launched by Uzbekistan. In 2024 the five members signed an international agreement on joint space exploration. At the fourth meeting (Baku, April 2025) the members agreed to build a joint CubeSat, with Uzbek engineers developing the propulsion system. The 12th OTS Summit in Gabala, Azerbaijan (October 2025) agreed to speed up production, with a 2026 launch target.

Work split (reported May 2026): Kazakhstan does design and overall assembly at the Spacecraft Assembly and Testing Complex in Astana; Uzbekistan provides propulsion; Türkiye provides solar panels and software; Azerbaijan takes part with no published role. The Astana complex is run by Ghalam LLP, a joint venture of the national space company Kazakhstan Gharysh Sapary (72%) and Airbus Defence and Space (27.5%). It can test spacecraft from 100 kg to 6 tonnes.

Key dates: project presented by Kazakhstan's Deputy Prime Minister Zhaslan Madiyev at the informal OTS summit in Turkestan, 15 May 2026; engineering model fully assembled, July 2026; framework agreement signed in Antalya, 6 Oct 2026; 13th Summit and Ankara Declaration, 30 Oct 2026.

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Milestone path

  1. April 2025 (fourth agency heads' meeting, Baku)

    Joint CubeSat agreed in Baku

    Achieved

    OTS heads of space agencies agreed to build a joint CubeSat, with Uzbek engineers developing the propulsion system.

    Why it matters: The first practical space project of the Organization of Turkic States.

  2. October 2025 (12th OTS Summit, Gabala)

    Summit fast-tracks the satellite

    Achieved

    The 12th OTS Summit in Gabala, Azerbaijan, agreed to speed up production, with a 2026 launch target.

    Why it matters: Political backing at summit level; the 2026 target has since slipped.

  3. 10 April 2026

    Launch target moves to 2026–27

    Achieved

    The head of Kazakhstan Gharysh Sapary gave the launch as "late 2026 or early 2027".

    Why it matters: The first sign of slippage.

  4. 15 May 2026

    Work split presented in Turkestan

    Latest

    Kazakhstan's Deputy Prime Minister presented the project at the informal OTS summit: Kazakhstan designs and assembles, Uzbekistan provides propulsion, Türkiye solar panels and software.

    Why it matters: Shows which countries' industries supply the satellite.

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Systems and suppliers

Lead builder and integration

Ghalam LLP (Kazakhstan)· not listed in the Directory
(state-majority joint venture). Builds OTS-SAT; engineering model assembled in Astana; runs the Spacecraft Assembly and Testing Complex.
JSC NC Kazakhstan Gharysh Sapary (Kazakhstan)· not listed in the Directory
(100% state-owned). Majority owner of Ghalam (72%); national Earth-observation operator; CEO stated the launch timeline (Apr 2026).
Airbus Defence and Space SAS (France)· not listed in the Directory
27.5% shareholder in Ghalam, which runs the Astana assembly and test complex. No direct OTS-SAT role published.

Government sponsors

Ministry of Artificial Intelligence and Digital Development (Kazakhstan)
Leads the project for Kazakhstan; minister Zhaslan Madiyev.
Aerospace Committee of the Ministry of Artificial Intelligence and Digital Development (Kazakhstan)
Sole shareholder body for Kazakhstan Gharysh Sapary; welcomed the framework agreement.
Organization of Turkic States Secretariat (international)
Coordinates legal and organisational procedures; Secretary General Kubanychbek Omuraliev.

Subsystems

Uzbekistan Space Agency (Uzbekspace) (Uzbekistan)
Propulsion system; framework signatory; director Shukrat Kadirov.
Türkiye (supplier not named)
solar panels and software. The Turkish organisation responsible has not been published.

Work split as reported by Kazakh and Uzbek sources to Nov 2026; Turkish and Azerbaijani suppliers not named; launch vehicle not published.

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Competitors

Approximate, published figures
Compared itemH2 2027 (planned), Baikonur~10 Dec 2025 (announced 10 Dec)3 Dec 2018, Falcon 9, Vandenberg
Format / mass12U CubeSat; mass not published260 kg105 kg
Lead / builderGhalam (Kazakhstan)UAE Space Agency, at NSSTC, UAE UniversitySSTL (UK) with Ghalam
Partner countriesKazakhstan, Türkiye, Azerbaijan, Uzbekistan9 named (UAE, Saudi Arabia, Egypt, Jordan, Bahrain, Sudan, Kuwait, Oman, Lebanon)UK–Kazakhstan
Main payloadTechnology demonstration (subsystems); camera reportedHyperspectral imagerWide-area imager (17.4–18.7 m)

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