Chandra X-ray Observatory over San Diego tonight
Pass predictions for San Diego, CA.
Next visible pass
Sat, Jul 25, 9:40 PM
Peak elevation 70.15° · rises NW · sets NW
Tracking: CXO (NORAD 25867)
7-day pass forecast
| Date | Time | Peak elev | Rises | Sets |
|---|---|---|---|---|
| Jul 25 | 9:40 PM | 70.15° | NW | NW |
| Jul 26 | 3:51 PM | 85.47° | NE | W |
| Jul 27 | 8:43 PM | 15.91° | NW | NW |
| Jul 28 | 1:25 PM | 79.00° | NE | NW |
| Jul 29 | 4:45 PM | 70.79° | E | W |
| Jul 30 | 9:47 AM | 64.05° | S | NW |
| Jul 31 | 2:34 PM | 86.51° | NE | NW |
How to spot Chandra X-ray Observatory from San Diego
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 San Diego.
Prefer email?
One email tonight before Chandra X-ray Observatory is visible, never more than 2/week.