| Gaganyaan-4 | |
| Names List: | H1 |
| Mission Type: | Crewed flight test |
| Operator: | ISRO |
| Spacecraft: | Gaganyaan |
| Manufacturer: | Hindustan Aeronautics Limited |
| Launch Date: | 2026 |
| Launch Rocket: | HLVM3 |
| Launch Site: | Satish Dhawan Space Centre |
| Orbit Reference: | Geocentric orbit |
| Orbit Regime: | Low Earth orbit |
| Programme: | Indian Human Spaceflight Programme |
| Previous Mission: | Gaganyaan-3 |
| Next Mission: | Gaganyaan-5 |
Gaganyaan-4 (from Sanskrit: Sanskrit: gagana, "celestial" and Sanskrit: yāna, "craft, vehicle") will be the first crewed test flight of the Gaganyaan programme, with launch planned for 2026.
The mission is planned to demonstrate human spaceflight capability by sending a crew to an orbit of 400 km of altitude[1] [2] [3] for 7 days.[4] Reporting in January 2020 for the Hindustan Times,[5] Anonna Dutt quotes K. Sivan, then chairman of ISRO, as saying,In October 2023, it was announced that the first crewed flight would take place after three uncrewed missions of the human-rated HLVM3.[6] The launch is planned for 2026[7] with the capsule coming down in the Indian Ocean.[8]
Primary Crew
Backup crew
The Gaganyan programme astronauts, Prasanth Nair, Angad Pratap, Ajit Krishnan and Shubhanshu Shukla, were announced on 27 February 2024.[9] Those selected for the first spaceflight will be from this pool of qualified astronauts, and one of them will fly to the ISS in 2024.[10] Is considered that one or two crewmembers will take part of this mission.
ISRO, the Department of Space and the Indian National Space Promotion and Authorization Center (IN-SPACe), together with Voyager Space, agreed to a memorandum of understanding to explore use of Gaganyaan for crew transportation to Voyager's planned Starlab space station.[11]
Gaganyaan-5 (from Sanskrit: Sanskrit: gagana, "celestial" and Sanskrit: yāna, "craft, vehicle") will be the second crewed test flight of the Gaganyaan programme, with launch planned in 2026.[12] [13] [14]