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Sighting Location

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Location: Sioux Falls, South Dakota, United States

The following ISS sightings are possible from Wednesday Apr 24, 2019 through Friday May 10, 2019

Date Visible Max Height Appears Disappears Share Event
Mon Apr 29, 5:19 AM 4 min 23° 11° above S 17° above E  
Tue Apr 30, 4:30 AM 3 min 13° 12° above SSE 10° above E  
Wed May 1, 5:14 AM 3 min 57° 19° above SW 33° above E  
Thu May 2, 4:25 AM 3 min 31° 30° above SSE 15° above E  
Fri May 3, 3:36 AM < 1 min 14° 14° above ESE 11° above E  
Fri May 3, 5:09 AM 3 min 61° 18° above WSW 36° above NE  
Sat May 4, 4:20 AM 2 min 78° 72° above SSW 25° above ENE  
Sun May 5, 3:31 AM 2 min 27° 27° above E 11° above ENE  
Sun May 5, 5:04 AM 4 min 33° 14° above W 24° above NNE  
Mon May 6, 4:15 AM 2 min 48° 43° above WNW 26° above NE  
Tue May 7, 3:26 AM 1 min 38° 38° above NE 17° above NE  
Tue May 7, 4:59 AM 4 min 23° 11° above WNW 19° above NNE  
Wed May 8, 2:36 AM < 1 min 12° 12° above ENE 10° above ENE  
Wed May 8, 4:09 AM 2 min 28° 21° above WNW 24° above NNE  
Wed May 8, 5:45 AM < 1 min 10° 10° above NW 10° above NW  
Thu May 9, 3:20 AM 1 min 36° 36° above N 23° above NNE  
Thu May 9, 4:54 AM 3 min 19° 10° above NW 19° above N  
2019-04-29 10:19:00.0,Mon Apr 29, 5:19 AM,4 min,23°,11° above S,17° above E|2019-04-30 09:30:00.0,Tue Apr 30, 4:30 AM,3 min,13°,12° above SSE,10° above E|2019-05-01 10:14:00.0,Wed May 1, 5:14 AM,3 min,57°,19° above SW,33° above E|2019-05-02 09:25:00.0,Thu May 2, 4:25 AM,3 min,31°,30° above SSE,15° above E|2019-05-03 08:36:00.0,Fri May 3, 3:36 AM,< 1 min,14°,14° above ESE,11° above E|2019-05-03 10:09:00.0,Fri May 3, 5:09 AM,3 min,61°,18° above WSW,36° above NE|2019-05-04 09:20:00.0,Sat May 4, 4:20 AM,2 min,78°,72° above SSW,25° above ENE|2019-05-05 08:31:00.0,Sun May 5, 3:31 AM,2 min,27°,27° above E,11° above ENE|2019-05-05 10:04:00.0,Sun May 5, 5:04 AM,4 min,33°,14° above W,24° above NNE|2019-05-06 09:15:00.0,Mon May 6, 4:15 AM,2 min,48°,43° above WNW,26° above NE|2019-05-07 08:26:00.0,Tue May 7, 3:26 AM,1 min,38°,38° above NE,17° above NE|2019-05-07 09:59:00.0,Tue May 7, 4:59 AM,4 min,23°,11° above WNW,19° above NNE|2019-05-08 07:36:00.0,Wed May 8, 2:36 AM,< 1 min,12°,12° above ENE,10° above ENE|2019-05-08 09:09:00.0,Wed May 8, 4:09 AM,2 min,28°,21° above WNW,24° above NNE|2019-05-08 10:45:00.0,Wed May 8, 5:45 AM,< 1 min,10°,10° above NW,10° above NW|2019-05-09 08:20:00.0,Thu May 9, 3:20 AM,1 min,36°,36° above N,23° above NNE|2019-05-09 09:54:00.0,Thu May 9, 4:54 AM,3 min,19°,10° above NW,19° above N|

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