Guidance, Navigation & Control
Which way the station is pointing
Four spinning gyroscopes hold the station steady without burning propellant. Here is their health, the station's orientation relative to its orbit, and the navigation sources it trusts.
Updated19:08:17 UTC
LVLH attitude viewer
The station's live orientation against its orbit frame. Drag to look around.
Attitude model loads when visible
Velocitydirection of travel
Nadirtoward Earth
Orbit normalcross-track
Control moment gyroscopes
Flywheels spinning at ~6,600 rpm. Tilting them steers the station without thrusters.
CMG 1
6601rpm
Bearing39.2 °C
Vibration0.010 g
CMG 2
6601rpm
Bearing30.6 °C
Vibration0.007 g
CMG 3
6601rpm
Bearing29.7 °C
Vibration0.007 g
CMG 4
6601rpm
Bearing36.0 °C
Vibration0.005 g
GNC status
Which control mode is active and which sensors the US and Russian segments are trusting.
USOS GNC ModeCMG/thruster assist attitude control
ROS GNC ModeThrusters help CMG (desaturate CMG)
US Attitude SourceGPS2
US Rate SourceRGA2
US State Vector SourceGPS1 deterministic
Attitude ControllerTEA
Control Reference FrameLVLH
CMG Desaturation RequestEnabled