Why Space Matters: GEO Satellite operations, Part 4–Communicate

“…You gotta reach out – Reach out and touch someone…” The last lesson showed how a geosynchronous (GEO) satellite can essentially “hover” over a particular area of the Earth. Almost as if a physical rigid connection keeps them moving together. This is because the GEO satellite’s orbit matches the speed of the Earth’s rotation, giving […]

Why Space Matters: GEO Satellite operations, Part 3–Revolution Earth

“Endless Distance, Wildlife and Stars, Blanket the Night…” The last lesson was about Field of View (FOV) and Field of Regard (FOR). It was intended to help with understanding the next few lessons regarding satellites in geosynchronous orbit (GEO). All mentions of GEO on this blog, unless otherwise stated, refer to a particular type of […]

Why Space Matters: GEO Satellite operations, Part 2–FOV/FOR-it things

In the first lesson, you learned (if you didn’t already know) a spacecraft in geosynchronous orbit is very far away from the Earth—a little over 26,000 miles. Before going any further, an explanation of Field of Regard (FOR) versus Field of View (FOV) is in order since we will initially be talking about weather imagery satellites. […]

Why Space Matters: GEO Satellite operations, Part 1–Going GEO

One of these things is just like the other… In an earlier post regarding the United States Air Force replacement of their Defense Support Program satellites with Space Based Infrared ones, there was a question posed to you: What do both the Space Based Infrared System (SBIRS) and Defense Support Program (DSP) satellites have in common, […]

Eighteen years after its start, SBIRS still not quite replaces DSP (or, the Air Force gets less by spending more)

Sad but true. According to this post on Spaceflightnow.com’s site, prime contractor Lockheed Martin and its customer, the United States Air Force (USAF), are slowly and expensively achieving a goal. That is, they are replacing older USAF Defense Support Program (DSP–and more DSP info here) satellites with Space Based Infrared System (SBIRS) GEO satellites. The SBIRS GEO-2 satellite is officially operating as […]