Satellite Passes Tonight — Sioux City, IA

Live satellite pass predictions for Sioux City, Iowa. Updated in real time.

Tonight's Visible Passes

THOR AGENA D R/B 9:15 PM
Max elevation 15°
Direction SSW → NNW
Duration 13 min
SL-3 R/B 9:26 PM
Max elevation
Direction WNW → NNE
Duration 11 min
SL-3 R/B 12:54 AM
Max elevation 10°
Direction NNW → ENE
Duration 11 min
CSS (TIANHE) 5:00 AM
Max elevation 58°
Direction W → ESE
Duration 11 min
ISS (ZARYA) 5:40 AM
Max elevation 29°
Direction W → NE
Duration 10 min

Predictions computed at 3:09 PM. Times shown in local time.

Full Pass Predictions

Interactive predictions with weather, viewing conditions, and more satellites.

Tonight

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Satellite Watching in Sioux City

Best Viewing Season

Summer and fall (June–October)

Weather Conditions

Generally good visibility year-round outside of storm season. Tornado season (April–June) brings unpredictable weather. Winter can be clear but bitterly cold.

Light Pollution

Sioux City has a Bortle class of 6 (suburban skies — ISS and bright satellites visible). The Midwest region averages about 100 clear nights per year.

Launch Visibility

Not visible from the Midwest.

Viewing Tips for Sioux City

The flat terrain means wide-open horizons — great for catching passes near the horizon. Rural Missouri, Iowa, and Kansas have excellent dark skies once you leave city limits.

Best Time to Watch

Check for passes during the first 2 hours after sunset or before sunrise. This is when satellites catch sunlight against a dark sky.

What to Look For

Satellites look like steady, bright stars moving smoothly across the sky. They don't blink like airplanes.

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