LowEarth

GPS IIF-1 over Sacramento tonight

Pass predictions for Sacramento, CA.

Next visible pass
Sat, Oct 24, 8:37 PM
Peak elevation 73.53° · rises NW · sets S
Tracking: GPS BIIF-1 (PRN 25) (NORAD 36585)

7-day pass forecast

DateTimePeak elevRisesSets
Oct 248:37 PM73.53°NWS
Oct 258:33 PM73.51°NWS
Oct 268:29 PM73.49°NWS
Oct 278:25 PM73.46°NWS
Oct 288:21 PM73.44°NWS
Oct 298:17 PM73.42°NWS
Oct 308:13 PM73.40°NWS

How to spot GPS IIF-1 from Sacramento

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 Sacramento.

Prefer email?

One email tonight before GPS IIF-1 is visible, never more than 2/week.