LowEarth

Chandra X-ray Observatory over San Diego tonight

Pass predictions for San Diego, CA.

Next visible pass
Mon, Oct 26, 6:01 AM
Peak elevation 73.98° · rises NE · sets NW
Tracking: CXO (NORAD 25867)

7-day pass forecast

DateTimePeak elevRisesSets
Oct 266:01 AM73.98°NENW
Oct 2710:07 AM79.65°NEW
Oct 287:47 AM61.21°SWNW
Oct 297:48 AM81.57°NENW
Oct 3011:20 AM52.77°ES
Oct 311:50 AM66.86°NENW

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.