ORBITAL EYE • ALERTS

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TOPOCENTRIC RADAR
● DEFCON 5 // NOMINAL UTC --:--:--
ACTIVE STATION: PUNE (MAHARASHTRA, INDIA)
LAT: 18.5204° N | LON: 73.8567° E | ALT: 560 m
TOPOCENTRIC CELESTIAL SKY DOME & COMPASS RADAR
PASS TARGET: ISS (ZARYA)
PEAK ZENITH AZIMUTH (TCA)
135° SE
PEAK SKY ELEVATION & MAGNITUDE
+68.4° (Mag -3.4)
AOS (RISE FROM HORIZON)
215° SW
LOS (SET ON HORIZON)
045° NE
OBSERVER FIELD COMPASS SKY GUIDE
1. Face SW (215°) to spot the initial rise.
2. Tilt view +68° high towards SE (135°) for peak brightness.
3. Follow the satellite as it sets on the horizon towards NE (045°).
CALCULATED SATELLITE PASSES & OPTICAL BRIGHTNESS 8 PASSES PREDICTED
SATELLITE NORAD MAG (BRIGHTNESS) AOS (RISE) TCA (PEAK ELEVATION) LOS (SET) SKY TRAJECTORY ILLUMINATION ACTION
SELECT GROUND STATION // CAPITALS & METROS

Satellite Pass Predictions, Space Weather Alerts & Sky Observer Deck

OrbitAlert calculates observer-specific topocentric satellite passes over 48-hour forward windows for any global latitude and longitude. Telemetry includes Acquisition of Signal (AOS), Time of Closest Approach (TCA), Loss of Signal (LOS), azimuth compass bearings, and maximum elevation angles.

Optical Visibility & Earth Shadow Science

True optical visibility requires two independent astronomical conditions: the ground observer must be in darkness (sun elevation < -6° civil twilight) AND the spacecraft must be directly illuminated by sunlight outside the cylindrical Earth shadow (umbra). Satellites in eclipse are flagged as invisible to the naked eye.

Official NOAA Space Weather & Re-entry Alerts

Ingests real-time solar wind velocities, planetary Kp indices, and geomagnetic storm scales (G0 Nominal through G5 Extreme) from the NOAA Space Weather Prediction Center (SWPC). Conjunction proximity screening and decaying orbit re-entry notifications are provided for educational and situational awareness purposes.