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Sighting Location

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Location: San Juan, Puerto Rico, United States

The following ISS sightings are possible from Monday Mar 31, 2025 through Tuesday Apr 15, 2025

Date Visible Max Height Appears Disappears Share Event
Mon Mar 31, 8:46 PM < 1 min 12° 10° above NW 12° above NW  
Tue Apr 1, 7:58 PM 3 min 44° 10° above NNW 44° above NNE  
Wed Apr 2, 7:10 PM 5 min 23° 10° above N 13° above E  
Wed Apr 2, 8:47 PM 1 min 12° 10° above W 12° above W  
Thu Apr 3, 7:59 PM 4 min 30° 10° above WNW 23° above SSW  
Fri Apr 4, 7:11 PM 7 min 71° 10° above NW 10° above SSE  
Sun Apr 6, 7:13 PM 4 min 15° 10° above W 10° above SSW  
Sun Apr 13, 5:23 AM 6 min 38° 10° above SSW 10° above ENE  
Mon Apr 14, 4:37 AM 3 min 17° 15° above SSE 10° above E  
Tue Apr 15, 5:24 AM 5 min 38° 17° above WSW 10° above NNE  
{ts '2025-04-01 00:46:00'},Mon Mar 31, 8:46 PM,< 1 min,12°,10° above NW,12° above NW|{ts '2025-04-01 23:58:00'},Tue Apr 1, 7:58 PM,3 min,44°,10° above NNW,44° above NNE|{ts '2025-04-02 23:10:00'},Wed Apr 2, 7:10 PM,5 min,23°,10° above N,13° above E|{ts '2025-04-03 00:47:00'},Wed Apr 2, 8:47 PM,1 min,12°,10° above W,12° above W|{ts '2025-04-03 23:59:00'},Thu Apr 3, 7:59 PM,4 min,30°,10° above WNW,23° above SSW|{ts '2025-04-04 23:11:00'},Fri Apr 4, 7:11 PM,7 min,71°,10° above NW,10° above SSE|{ts '2025-04-06 23:13:00'},Sun Apr 6, 7:13 PM,4 min,15°,10° above W,10° above SSW|{ts '2025-04-13 09:23:00'},Sun Apr 13, 5:23 AM,6 min,38°,10° above SSW,10° above ENE|{ts '2025-04-14 08:37:00'},Mon Apr 14, 4:37 AM,3 min,17°,15° above SSE,10° above E|{ts '2025-04-15 09:24:00'},Tue Apr 15, 5:24 AM,5 min,38°,17° above WSW,10° above NNE|

The space station looks like an airplane or a very bright star moving across the sky, except it doesn't have flashing lights or change direction. It will also be moving considerably faster than a typical airplane (airplanes generally fly at about 600 miles per hour; the space station flies at 17,500 miles per hour).

Below is a time-lapse photo of the space station moving across the sky.

The International Space Station is seen in this 30 second exposure as it flies over Elkton, VA early in the morning, Saturday, August 1, 2015. Photo Credit: NASA/Bill Ingalls The International Space Station is seen in this 30 second exposure as it flies over Elkton, VA early in the morning, Saturday, August 1, 2015. Photo Credit: NASA/Bill Ingalls

Visit the NASA Johnson Flickr Photostream

How do I Spot The Station?

What does all this sighting information mean?

Time is when the sighting opportunity will begin in your local time zone. All sightings will occur within a few hours before or after sunrise or sunset. This is the optimum viewing period as the sun reflects off the space station and contrasts against the darker sky.

Visible is the maximum time period the space station is visible before crossing back below the horizon.

Max Height is measured in degrees (also known as elevation). It represents the height of the space station from the horizon in the night sky. The horizon is at zero degrees, and directly overhead is ninety degrees. If you hold your fist at arm's length and place your fist resting on the horizon, the top will be about 10 degrees.

Appears is the location in the sky where the station will be visible first. This value, like maximum height, also is measured in degrees from the horizon. The letters represent compass directions -- N is north, WNW is west by northwest, and so on.

Disappears represents where in the night sky the International Space Station will leave your field of view.

Astronomical Horizon chart. Click the link for a detailed description of the astronomical horizon and sighting alert messages.