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🛰️ Satellite Pass Predictor
4S6TMP.com — LEO satellite passes for amateur radio
⚙️ Your Location
Grid Square, City, or Country
Satellite
ISS (400km)
SO-50 (FM)
AO-91 (Fox-1B)
AO-27
PO-101 (Diwata-2)
Predict Passes
📍 Use My Location
📊 Upcoming Passes (Next 24 Hours)
Time
Max El
Duration
Direction
📋 Doppler Shift Cheat Sheet
Band
Shift at AOS
Shift at TCA
Shift at LOS
2m (145 MHz)
+3.5 kHz
0
-3.5 kHz
70cm (435 MHz)
+10.5 kHz
0
-10.5 kHz
23cm (1260 MHz)
+30 kHz
0
-30 kHz