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Why doesn’t the earliest sunrise occur on the longest day of the year?

Why doesn’t the earliest sunrise occur on the longest day of the year?

Jens Ramrath - 6/17/2019

We all know that the day with the longest daylight in the northern hemisphere is 21 June, during the Summer solstice, and the shortest day is 21...

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Great things at ARGoPS Research Symposium

Great things at ARGoPS Research Symposium

Novarah Kazmi - 6/3/2019

On April 26th- 27th, 2019 the Astrodynamics Research Group of Penn State held their second annual ARGoPS Research Symposiu...

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Celebrate Apollo 11 with AGI

Celebrate Apollo 11 with AGI

Maggie Handler - 5/28/2019

It’s the anniversary celebration space nerds everywhere have been waiting for. And the space nerds at AGI have been working hard on our own Apollo 11 50th anniversary activities.

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Multi-Satellite Orbit Determination

Multi-Satellite Orbit Determination

Patrick Ortenzio - 5/13/2019

The practice of tracking the position and velocity ...

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Low Thrust Trajectory Optimization

Low Thrust Trajectory Optimization

Novarah Kazmi and Pradipto Ghosh - 5/6/2019

During recent years, low-thrust electric propulsion systems have been ...

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