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Location: Sioux Falls, South Dakota, United States

The following ISS sightings are possible from Friday Feb 23, 2018 through Saturday Mar 10, 2018

Date Visible Max Height Appears Disappears Share Event
Sun Feb 25, 6:24 AM 2 min 19° 11° above S 19° above SE  
Mon Feb 26, 5:34 AM 1 min 10° 10° above SE 10° above ESE  
Tue Feb 27, 6:15 AM 4 min 43° 10° above SSW 37° above ESE  
Wed Feb 28, 5:24 AM 3 min 23° 16° above S 20° above ESE  
Thu Mar 1, 4:34 AM 1 min 12° 12° above ESE 10° above ESE  
Thu Mar 1, 6:07 AM 5 min 82° 15° above WSW 20° above NE  
Fri Mar 2, 5:17 AM 2 min 54° 49° above S 25° above ENE  
Sat Mar 3, 4:27 AM < 1 min 17° 17° above E 17° above E  
Sat Mar 3, 6:00 AM 5 min 42° 21° above W 11° above NE  
Sun Mar 4, 5:10 AM 2 min 57° 57° above NNE 16° above NE  
Mon Mar 5, 4:20 AM < 1 min 15° 15° above ENE 15° above ENE  
Mon Mar 5, 5:52 AM 4 min 27° 18° above WNW 10° above NE  
Tue Mar 6, 5:02 AM 2 min 33° 33° above N 13° above NE  
Wed Mar 7, 4:12 AM < 1 min 13° 13° above NE 13° above NE  
Wed Mar 7, 5:45 AM 4 min 21° 16° above NW 10° above NE  
Thu Mar 8, 4:54 AM 2 min 22° 22° above N 12° above NE  
Thu Mar 8, 6:28 AM < 1 min 14° 10° above NW 14° above NNW  
Fri Mar 9, 4:04 AM < 1 min 12° 12° above NE 12° above NE  
Fri Mar 9, 5:36 AM 4 min 19° 13° above NW 12° above NE  
Sat Mar 10, 4:46 AM 2 min 19° 19° above N 11° above NE  
Sat Mar 10, 6:20 AM 4 min 23° 11° above NW 19° above NE  
2018-02-25 12:24:00.0,Sun Feb 25, 6:24 AM,2 min,19°,11° above S,19° above SE|2018-02-26 11:34:00.0,Mon Feb 26, 5:34 AM,1 min,10°,10° above SE,10° above ESE|2018-02-27 12:15:00.0,Tue Feb 27, 6:15 AM,4 min,43°,10° above SSW,37° above ESE|2018-02-28 11:24:00.0,Wed Feb 28, 5:24 AM,3 min,23°,16° above S,20° above ESE|2018-03-01 10:34:00.0,Thu Mar 1, 4:34 AM,1 min,12°,12° above ESE,10° above ESE|2018-03-01 12:07:00.0,Thu Mar 1, 6:07 AM,5 min,82°,15° above WSW,20° above NE|2018-03-02 11:17:00.0,Fri Mar 2, 5:17 AM,2 min,54°,49° above S,25° above ENE|2018-03-03 10:27:00.0,Sat Mar 3, 4:27 AM,< 1 min,17°,17° above E,17° above E|2018-03-03 12:00:00.0,Sat Mar 3, 6:00 AM,5 min,42°,21° above W,11° above NE|2018-03-04 11:10:00.0,Sun Mar 4, 5:10 AM,2 min,57°,57° above NNE,16° above NE|2018-03-05 10:20:00.0,Mon Mar 5, 4:20 AM,< 1 min,15°,15° above ENE,15° above ENE|2018-03-05 11:52:00.0,Mon Mar 5, 5:52 AM,4 min,27°,18° above WNW,10° above NE|2018-03-06 11:02:00.0,Tue Mar 6, 5:02 AM,2 min,33°,33° above N,13° above NE|2018-03-07 10:12:00.0,Wed Mar 7, 4:12 AM,< 1 min,13°,13° above NE,13° above NE|2018-03-07 11:45:00.0,Wed Mar 7, 5:45 AM,4 min,21°,16° above NW,10° above NE|2018-03-08 10:54:00.0,Thu Mar 8, 4:54 AM,2 min,22°,22° above N,12° above NE|2018-03-08 12:28:00.0,Thu Mar 8, 6:28 AM,< 1 min,14°,10° above NW,14° above NNW|2018-03-09 10:04:00.0,Fri Mar 9, 4:04 AM,< 1 min,12°,12° above NE,12° above NE|2018-03-09 11:36:00.0,Fri Mar 9, 5:36 AM,4 min,19°,13° above NW,12° above NE|2018-03-10 10:46:00.0,Sat Mar 10, 4:46 AM,2 min,19°,19° above N,11° above NE|2018-03-10 12:20:00.0,Sat Mar 10, 6:20 AM,4 min,23°,11° above NW,19° above NE|

Last Updated:

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