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Location: Portland, Oregon, United States

The following ISS sightings are possible from Wednesday Sep 12, 2018 through Friday Sep 28, 2018

Date Visible Max Height Appears Disappears Share Event
Wed Sep 12, 6:14 AM 5 min 80° 10° above WNW 29° above ESE  
Thu Sep 13, 3:50 AM < 1 min 17° 17° above NE 17° above NE  
Thu Sep 13, 5:23 AM 4 min 52° 15° above NW 32° above E  
Fri Sep 14, 4:34 AM 2 min 37° 37° above NNE 19° above ENE  
Fri Sep 14, 6:07 AM 6 min 48° 10° above WNW 12° above SE  
Sat Sep 15, 3:44 AM < 1 min 11° 11° above ENE 11° above ENE  
Sat Sep 15, 5:17 AM 4 min 84° 35° above WNW 11° above ESE  
Sun Sep 16, 4:27 AM 2 min 28° 28° above E 10° above ESE  
Sun Sep 16, 6:00 AM 5 min 22° 12° above W 10° above S  
Mon Sep 17, 5:11 AM 2 min 30° 30° above S 10° above SSE  
Thu Sep 20, 8:50 PM < 1 min 11° 11° above S 11° above S  
Fri Sep 21, 7:59 PM 2 min 13° 10° above SSE 12° above SE  
Fri Sep 21, 9:33 PM < 1 min 12° 10° above WSW 12° above WSW  
Sat Sep 22, 8:41 PM 3 min 48° 10° above SW 48° above SSE  
Sun Sep 23, 7:50 PM 5 min 28° 10° above SSW 14° above E  
Sun Sep 23, 9:26 PM 2 min 31° 10° above W 31° above W  
Mon Sep 24, 8:34 PM 4 min 80° 10° above WSW 39° above NE  
Tue Sep 25, 7:42 PM 6 min 60° 10° above SW 10° above ENE  
Tue Sep 25, 9:20 PM < 1 min 30° 23° above WNW 30° above NW  
Wed Sep 26, 8:28 PM 3 min 45° 30° above WNW 25° above NE  
2018-09-12 13:14:00.0,Wed Sep 12, 6:14 AM,5 min,80°,10° above WNW,29° above ESE|2018-09-13 10:50:00.0,Thu Sep 13, 3:50 AM,< 1 min,17°,17° above NE,17° above NE|2018-09-13 12:23:00.0,Thu Sep 13, 5:23 AM,4 min,52°,15° above NW,32° above E|2018-09-14 11:34:00.0,Fri Sep 14, 4:34 AM,2 min,37°,37° above NNE,19° above ENE|2018-09-14 13:07:00.0,Fri Sep 14, 6:07 AM,6 min,48°,10° above WNW,12° above SE|2018-09-15 10:44:00.0,Sat Sep 15, 3:44 AM,< 1 min,11°,11° above ENE,11° above ENE|2018-09-15 12:17:00.0,Sat Sep 15, 5:17 AM,4 min,84°,35° above WNW,11° above ESE|2018-09-16 11:27:00.0,Sun Sep 16, 4:27 AM,2 min,28°,28° above E,10° above ESE|2018-09-16 13:00:00.0,Sun Sep 16, 6:00 AM,5 min,22°,12° above W,10° above S|2018-09-17 12:11:00.0,Mon Sep 17, 5:11 AM,2 min,30°,30° above S,10° above SSE|2018-09-21 03:50:00.0,Thu Sep 20, 8:50 PM,< 1 min,11°,11° above S,11° above S|2018-09-22 02:59:00.0,Fri Sep 21, 7:59 PM,2 min,13°,10° above SSE,12° above SE|2018-09-22 04:33:00.0,Fri Sep 21, 9:33 PM,< 1 min,12°,10° above WSW,12° above WSW|2018-09-23 03:41:00.0,Sat Sep 22, 8:41 PM,3 min,48°,10° above SW,48° above SSE|2018-09-24 02:50:00.0,Sun Sep 23, 7:50 PM,5 min,28°,10° above SSW,14° above E|2018-09-24 04:26:00.0,Sun Sep 23, 9:26 PM,2 min,31°,10° above W,31° above W|2018-09-25 03:34:00.0,Mon Sep 24, 8:34 PM,4 min,80°,10° above WSW,39° above NE|2018-09-26 02:42:00.0,Tue Sep 25, 7:42 PM,6 min,60°,10° above SW,10° above ENE|2018-09-26 04:20:00.0,Tue Sep 25, 9:20 PM,< 1 min,30°,23° above WNW,30° above NW|2018-09-27 03:28:00.0,Wed Sep 26, 8:28 PM,3 min,45°,30° above WNW,25° 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