Space Docking Experiment (SpaDeX)

Source: TH

Context: India achieved a significant milestone in space technology with the successful execution of ISRO’s Space Docking Experiment (SpaDeX) on January 16, 2025.

About ISRO’s Space Docking Experiment (SpaDeX):

• What it is: SpaDeX is a mission to demonstrate satellite docking technology, a critical capability for advanced space missions like space station operations, interplanetary missions, and satellite servicing.

• Mission under: The experiment was part of ISRO’s broader strategy to develop Next-Generation Space Technologies and was launched under the PSLV C60 mission.

• Aim: Demonstrate docking and undocking of two satellites in orbit. Enable transfer of power and control between docked satellites. Support future human spaceflight missions, moon landings, and space station assembly.

• Demonstrate docking and undocking of two satellites in orbit.

• Enable transfer of power and control between docked satellites.

• Support future human spaceflight missions, moon landings, and space station assembly.

• Features: Satellites involved: SDX01 (Chaser) and SDX02 (Target), each weighing 220 kg. Rigidization post-docking for stability. Transfer of electric power between docked satellites to ensure operational readiness. Expected mission life: Two years.

• Satellites involved: SDX01 (Chaser) and SDX02 (Target), each weighing 220 kg.

• Rigidization post-docking for stability.

• Transfer of electric power between docked satellites to ensure operational readiness.

• Expected mission life: Two years.

• How it is done: Satellites maneuvered from 15m to a 3m hold point for precision docking. Automated docking using sensors, alignment systems, and thrusters. Post-docking operations include power checks and payload activation.

• Satellites maneuvered from 15m to a 3m hold point for precision docking.

• Automated docking using sensors, alignment systems, and thrusters.

• Post-docking operations include power checks and payload activation.

• Nations that achieved the feat: United States: First achieved in the Gemini program in 1966. Russia: Demonstrated docking during the Soyuz missions. China: Successfully docked modules for the Tiangong space station. India: 4th nation to achieved this milestone in 2025 with SpaDeX.

• United States: First achieved in the Gemini program in 1966.

• Russia: Demonstrated docking during the Soyuz missions.

• China: Successfully docked modules for the Tiangong space station.

• India: 4th nation to achieved this milestone in 2025 with SpaDeX.

Insta links:

• SpaDex-mission