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Location: Tucson, Arizona, United States

The following ISS sightings are possible from Wednesday Mar 14, 2018 through Friday Mar 30, 2018

Date Visible Max Height Appears Disappears Share Event
Thu Mar 15, 5:49 AM 2 min 13° 10° above N 12° above NE  
Sat Mar 17, 5:40 AM 3 min 27° 11° above NNW 26° above NE  
Sun Mar 18, 4:49 AM 2 min 15° 11° above N 15° above NE  
Mon Mar 19, 5:32 AM 6 min 79° 11° above NW 10° above SE  
Tue Mar 20, 4:43 AM 3 min 35° 34° above NNE 11° above ESE  
Wed Mar 21, 5:26 AM 4 min 30° 25° above W 11° above SSE  
Wed Mar 21, 8:24 PM < 1 min 13° 11° above SW 13° above SW  
Thu Mar 22, 4:37 AM < 1 min 15° 15° above SE 10° above SE  
Thu Mar 22, 7:32 PM 3 min 29° 10° above SSW 28° above ESE  
Fri Mar 23, 8:16 PM 4 min 36° 10° above WSW 32° above NNW  
Sat Mar 24, 7:24 PM 6 min 83° 11° above SW 10° above NE  
Sun Mar 25, 8:11 PM 3 min 16° 15° above NW 10° above N  
Mon Mar 26, 7:19 PM 3 min 28° 28° above NW 11° above NNE  
Wed Mar 28, 7:11 PM 2 min 13° 13° above NW 10° above N  
2018-03-15 12:49:00.0,Thu Mar 15, 5:49 AM,2 min,13°,10° above N,12° above NE|2018-03-17 12:40:00.0,Sat Mar 17, 5:40 AM,3 min,27°,11° above NNW,26° above NE|2018-03-18 11:49:00.0,Sun Mar 18, 4:49 AM,2 min,15°,11° above N,15° above NE|2018-03-19 12:32:00.0,Mon Mar 19, 5:32 AM,6 min,79°,11° above NW,10° above SE|2018-03-20 11:43:00.0,Tue Mar 20, 4:43 AM,3 min,35°,34° above NNE,11° above ESE|2018-03-21 12:26:00.0,Wed Mar 21, 5:26 AM,4 min,30°,25° above W,11° above SSE|2018-03-22 03:24:00.0,Wed Mar 21, 8:24 PM,< 1 min,13°,11° above SW,13° above SW|2018-03-22 11:37:00.0,Thu Mar 22, 4:37 AM,< 1 min,15°,15° above SE,10° above SE|2018-03-23 02:32:00.0,Thu Mar 22, 7:32 PM,3 min,29°,10° above SSW,28° above ESE|2018-03-24 03:16:00.0,Fri Mar 23, 8:16 PM,4 min,36°,10° above WSW,32° above NNW|2018-03-25 02:24:00.0,Sat Mar 24, 7:24 PM,6 min,83°,11° above SW,10° above NE|2018-03-26 03:11:00.0,Sun Mar 25, 8:11 PM,3 min,16°,15° above NW,10° above N|2018-03-27 02:19:00.0,Mon Mar 26, 7:19 PM,3 min,28°,28° above NW,11° above NNE|2018-03-29 02:11:00.0,Wed Mar 28, 7:11 PM,2 min,13°,13° above NW,10° above N|

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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