Thybolt-1 was one of two tiny 0.5U satellites built by the Indian company Dhruva Space and launched on PSLV-C54 in November 2022. The pair tested the company's satellite platform and a store-and-forward radio service for amateur operators.
Re-entered Earth's atmosphere on 19 May 2024, according to the public satellite catalogue.
ISRO describes Thybolt as a 0.5U spacecraft bus with a communication payload, meant to let Dhruva Space demonstrate technology quickly and build constellations for several users.
It also demonstrated store-and-forward messaging for authorised users in the amateur radio band. A message sent up by one amateur operator is stored on board and later sent down to amateur ground stations in India.
Gunter's Space Page names the platform P-DoT, Dhruva Space's modular CubeSat bus. Thybolt-1 and its twin Thybolt-2 together had a separated mass of 1.45 kg. They were released from Dhruva Space's own orbital deployer, with a planned minimum life of one year.
PSLV-C54 launched them from Sriharikota on 26 November 2022 with EOS-06. The Thybolts were the first passenger satellites to separate, after the rocket's upper stage moved down to a lower orbit of about 511 km.
Thybolt-1 re-entered Earth's atmosphere on 19 May 2024, according to the public satellite catalogue.