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Location: Sioux Falls, South Dakota, United States

The following ISS sightings are possible from Monday Jul 22, 2024 through Tuesday Aug 6, 2024

Date Visible Max Height Appears Disappears Share Event
Mon Jul 22, 10:12 PM 6 min 34° 10° above NW 12° above E  
Mon Jul 22, 11:49 PM 2 min 29° 10° above WNW 29° above W  
Tue Jul 23, 11:00 PM 4 min 71° 10° above WNW 57° above SSE  
Wed Jul 24, 10:12 PM 6 min 71° 10° above NW 19° above ESE  
Wed Jul 24, 11:49 PM 1 min 13° 10° above W 13° above WSW  
Thu Jul 25, 11:00 PM 3 min 26° 10° above WNW 26° above SW  
Fri Jul 26, 10:11 PM 5 min 45° 10° above WNW 19° above SSE  
Sat Jul 27, 11:02 PM 1 min 10° 10° above SW 10° above SW  
Sun Jul 28, 10:11 PM 4 min 17° 10° above W 11° above S  
Wed Jul 31, 9:23 PM 2 min 11° 10° above WSW 10° above SSW  
{ts '2024-07-23 03:12:00'},Mon Jul 22, 10:12 PM,6 min,34°,10° above NW,12° above E|{ts '2024-07-23 04:49:00'},Mon Jul 22, 11:49 PM,2 min,29°,10° above WNW,29° above W|{ts '2024-07-24 04:00:00'},Tue Jul 23, 11:00 PM,4 min,71°,10° above WNW,57° above SSE|{ts '2024-07-25 03:12:00'},Wed Jul 24, 10:12 PM,6 min,71°,10° above NW,19° above ESE|{ts '2024-07-25 04:49:00'},Wed Jul 24, 11:49 PM,1 min,13°,10° above W,13° above WSW|{ts '2024-07-26 04:00:00'},Thu Jul 25, 11:00 PM,3 min,26°,10° above WNW,26° above SW|{ts '2024-07-27 03:11:00'},Fri Jul 26, 10:11 PM,5 min,45°,10° above WNW,19° above SSE|{ts '2024-07-28 04:02:00'},Sat Jul 27, 11:02 PM,1 min,10°,10° above SW,10° above SW|{ts '2024-07-29 03:11:00'},Sun Jul 28, 10:11 PM,4 min,17°,10° above W,11° above S|{ts '2024-08-01 02:23:00'},Wed Jul 31, 9:23 PM,2 min,11°,10° above WSW,10° above SSW|

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.