Electrical Power System
Solar arrays & power
Eight solar array wings turn to follow the Sun. The big rotary joints (SARJ) spin each side of the truss, beta gimbals tilt each wing, and every array feeds a power channel whose voltage is shown live.
Updated19:08:00 UTC
Arrays nominal8 / 8Power channels in the 140–172 V band
Average voltage151.2 VAcross all eight power channels
Starboard jointAutotrackFollowing the Sun · 144.9°
Port jointAutotrackFollowing the Sun · 215.1°
← StarboardIntegrated trussPort →
1B
350.7°
151.2 V
3A
350.9°
151.2 V
2A
170.8°
151.1 V
4B
170.2°
151.2 V
3B
9.2°
151.3 V
1A
9.1°
151.2 V
4A
188.8°
151.3 V
2B
193.5°
151.1 V
wing angle (beta gimbal) 140–172 V nominal marginal off-nominal