Chandra X-ray Observatory over Portland tonight
Pass predictions for Portland, OR.
Next visible pass
Sat, Oct 24, 10:04 PM
Peak elevation 28.24° · rises W · sets NW
Tracking: CXO (NORAD 25867)
7-day pass forecast
| Date | Time | Peak elev | Rises | Sets |
|---|---|---|---|---|
| Oct 24 | 10:04 PM | 28.24° | W | NW |
| Oct 26 | 2:24 AM | 87.69° | N | NW |
| Oct 27 | 9:46 AM | 65.60° | NE | W |
| Oct 28 | 7:55 AM | 70.31° | SW | N |
| Oct 29 | 6:27 AM | 84.73° | NE | NW |
| Oct 30 | 11:31 AM | 38.53° | E | S |
How to spot Chandra X-ray Observatory from Portland
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 Portland.
Prefer email?
One email tonight before Chandra X-ray Observatory is visible, never more than 2/week.