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Wednesday, April 12, 2017

Two minute pass of International Space Station over Charlestown tonight

Overflight visible at 9:01 PM in "mostly clear" sky

By Will Collette
Yet again, Charlestown has another good chance to see the International Space Station (ISS) float overhead.

The forecast from the meteorologists at the National Weather Service for this evening calls for "mostly clear" skies with a temperature in the low 50s to mid-40. 
When NASA says the overflight will start at 9:01 and end two minutes later, that's what you will get - not sooner, not later. The station will arc to a maximum elevation of 43 degrees above the horizon.

Look for it to suddenly appear in the west northwest at 9:01 above the horizon at 26 degrees, arc over us and then disappear in the south two minutes later as it losses the reflected glow of the sun.

National Weather Service prediction is here. 

Here's the message I received from NASA this morning, courtesy of their "Spot The Station" e-mail listserve:

Time: Time: Wed Apr 12 9:01 PM, Visible: 2 min, Max Height: 49°, Appears: 26° above WNW, Disappears: 43° above S 

Celestial mechanics makes the ISS strictly follow these specifications.