Chandra X-ray Observatory over Seattle tonight
Pass predictions for Seattle, WA.
Next visible pass
Sun, Jul 26, 3:07 PM
Peak elevation 69.47° · rises NE · sets W
Tracking: CXO (NORAD 25867)
7-day pass forecast
| Date | Time | Peak elev | Rises | Sets |
|---|---|---|---|---|
| Jul 26 | 3:07 PM | 69.47° | NE | W |
| Jul 27 | 7:50 PM | 30.21° | W | N |
| Jul 28 | 11:00 AM | 85.16° | N | NW |
| Jul 29 | 4:31 PM | 54.43° | NE | SW |
| Jul 30 | 10:07 AM | 80.27° | SE | NW |
| Jul 31 | 1:21 PM | 77.61° | NE | NW |
How to spot Chandra X-ray Observatory from Seattle
NASA's flagship X-ray space telescope.
- 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 Chandra X-ray Observatory is visible from Seattle.
Prefer email?
One email tonight before Chandra X-ray Observatory is visible, never more than 2/week.