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Thursday, September 28, 2017

VIDEO: Ideal conditions for Space Station Charlestown overflight at 6:54 PM.

Overflight visible at 6:54 PM in "clear" sky
By Will Collette

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

Conditions don't get any better than this: the ISS will float above us for the maximum time of six minutes and the weather forecast is great.

The forecast from the meteorologists at the National Weather Service for this evening calls for "clear" skies. Though the weather will dip to the fifties later in the night, it should still be around 70 degrees at NASA show time. 
When NASA says the overflight will start at 6:54 and end six minutes later, that's what you will get - not sooner, not later. The station will arc to a maximum elevation of 59 degrees above the horizon.

Look for it to suddenly appear in the southwest at 6:54 above the horizon at 15 degrees, arc over us and then disappear in the east northeast six 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: Thu Sep 28 6:54 PM, Visible: 6 min, Max Height: 59°, Appears: 15° above SW, Disappears: 10° above ENE

Celestial mechanics makes the ISS strictly follow these specifications.