GPS IIF-1 over San Diego tonight
Pass predictions for San Diego, CA.
Next visible pass
Wed, Jun 10, 10:46 AM
Peak elevation 34.84° · rises S · sets S
Tracking: GPS BIIF-1 (PRN 25) (NORAD 36585)
7-day pass forecast
| Date | Time | Peak elev | Rises | Sets |
|---|---|---|---|---|
| Jun 10 | 10:46 AM | 34.84° | S | S |
| Jun 11 | 6:25 AM | 68.25° | NW | S |
| Jun 12 | 6:21 AM | 68.25° | NW | S |
| Jun 13 | 6:17 AM | 68.24° | NW | S |
| Jun 14 | 6:13 AM | 68.24° | NW | S |
| Jun 15 | 6:09 AM | 68.24° | NW | S |
| Jun 16 | 6:05 AM | 68.24° | NW | S |
How to spot GPS IIF-1 from San Diego
GPS navigation satellite in MEO at ~20,200 km — visible with binoculars in the right window.
- Look in the direction listed — passes start near the horizon and arc across the sky.
- Peak elevation matters — a 60°+ peak means it'll go nearly overhead; under 30° stays low.
- Best viewing is in the 90 minutes after sunset or before sunrise — the satellite is sunlit while you're in shadow.
- No equipment needed for bright passes — the ISS at peak rivals Venus.
Going to look up?
For fainter satellites you'll want 7×50 or 10×50 binoculars. A pair of Celestron SkyMaster binoculars is the consensus pick. Affiliate placement — replace with your affiliate link.
Pass alerts on your phone
Browser push, no email needed. We'll notify you 30 minutes before GPS IIF-1 is visible from San Diego.
Prefer email?
One email tonight before GPS IIF-1 is visible, never more than 2/week.