LowEarth

GPS IIF-1 over Bangkok tonight

Pass predictions for Bangkok, TH.

Next visible pass
Mon, Oct 26, 12:39 AM
Peak elevation 28.47° · rises NW · sets SW
Tracking: GPS BIIF-1 (PRN 25) (NORAD 36585)

7-day pass forecast

DateTimePeak elevRisesSets
Oct 2612:39 AM28.47°NWSW
Oct 266:23 AM39.32°SNE
Oct 2712:35 AM28.45°NWSW
Oct 276:19 AM39.34°SNE
Oct 2812:31 AM28.42°NWSW
Oct 286:15 AM39.37°SNE
Oct 2912:27 AM28.40°NWSW

How to spot GPS IIF-1 from Bangkok

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 Bangkok.

Prefer email?

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