| Name | Description |
|---|---|
| Boresight | Direction of the sensor's boresight which is the Z-axis of the sensor's body fixed coordinate system. |
| Moonlight | Apparent direction from which moonlight arrives at the object's location. |
| Sun | Apparent direction from which sunlight arrives at the object's location. |
| Sunlight | Apparent direction from which sunlight arrives at the object's location. |
| Up | Direction of the sensor's "Up" vector which is the X-axis of the sensor's body fixed coordinate system. |
STK Programming Interface 11.0.1