Short-term Visibility Prediction Tool
The Einstein Probe Short-term Visibility Prediction Tool is designed to predict the Short-term visibility of EP observation for the specified target and time period. The Solar aspect angle constraints are 94.5° for ToO-NOM, and 65° for ToO-EX / ToO-MM, respectively. The Solar and Moon constraints, Earth elevation angle constraints, Bright earth elevation angle constraints, and South Atlantic Anomaly (SAA) are applied to calculate the target visibility in 10s time interval:
- Solar aspect angle (ToO-NOM) > 94.5°
- Solar aspect angle (ToO-EX / ToO-MM) > 65°
- Moon aspect angle > 10°
- Earth elevation angle > 8°
- Bright earth elevation angle > 35°
Visible Date of EP
Unvisible Date: Sun violation or Moon violation
Unvisible Date: Earth elevation angle violation
Unvisible Date: South Atlantic Anomaly (SAA)