Solar Sailing

NASA's NanoSail-D Deploys Solar Sail in Low-Earth Orbit

"Friday, Jan. 21 at 10 a.m. EST, engineers at NASA's Marshall Space Flight Center in Huntsville, Ala., confirmed that the NanoSail-D nanosatellite deployed its 100-square-foot polymer sail in low-Earth orbit and is operating as planned. Actual deployment occurred on Jan. 20 at 10 p.m. EST and was confirmed today with beacon packets data received from NanoSail-D and additional ground-based satellite tracking assets. In addition, the NanoSail-D orbital parameter data set shows an appropriate change which is consistent with sail deployment."

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Here is an idea to keep our national security secrets safe. Put the NASA public affairs people in charge of them.
If they can do as good a job at hiding our secrets as they do of hiding exciting NASA activities such as the nano-sail, then we would have nothing to fear from the spy activities of any country on the face of the earth.

They didn't really hide it but it probably wasn't widely reported.

It was supposed to have been deployed 6 weeks ago but didn't for some reason. It's active lifetime was about 5 days to send radio beacons on amateur radio frequencies and to deploy the test solar array.

The battery has now died and it will reenter in about 100 days. Satellite observers are encourage to send in observations.

"...operating as planned..." in this case means had just enough juice left to deploy the sail, then start uncontrolled re-entry?

So far, then, there has been (maybe) only one successful solar sail mission (IKAROS), out of 4?

OTOH, since this isn't really a SOLAR sail, then maybe it's successful, leaving solar sail success at 1/3.

From the Planetary Society (heaven forbid I get NASA info from NASA)I believe the purpose is to de-orbit satellites by using solar pressure. Not a solar sail, exactly, but interesting.

The article states "NanoSail-D is designed to demonstrate deployment of a compact solar sail boom technology". The battery just needed to provide power until it was deployed. Unless they obtain photos of the craft with the sail deployed I'm not sure how they'll know it was completely successful.

I suspect this limited demonstration was picked because it was a low orbit launch availability and to keep the cost down. I wish they would do this in a higher orbit to test out the concept.

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About this Entry

This page contains a single entry by Keith Cowing published on January 22, 2011 10:30 PM.

NASA Space Technology Roadmaps Available for Public Review and Comment was the previous entry in this blog.

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