terça-feira, 10 de março de 2015

LightSail Arrives in Florida; More Launch Details Revealed

Hello reader!

It follows an article published on (03/09), in the website of “The Planetary Society”, noting that LightSail arrives in Florida and more launch details was revealed.

Duda Falcão

Mission status, LightSail

LightSail Arrives in Florida;
More Launch Details Revealed

Posted by Jason Davis
2015/03/09 21:32 UTC

A cadre of CubeSats including The Planetary Society’s LightSail spacecraft completed a cross-country journey from California to Florida, where they await installation as a secondary payload aboard an Atlas V rocket. NASA and the U.S. Air Force also released the nomenclature of the rocket’s primary and secondary payloads, and a preliminary launch date has been set for May 6.


LightSail, a 3-unit CubeSat about the size of a loaf of bread, is a part of a flock of spacecraft dubbed ULTRASat. ULTRASat contains an array of Poly-Picosatellite Orbital Deployers, or P-PODS, which are used to spring CubeSats into space. LightSail and its P-POD were integrated to ULTRASat at the Naval Postgraduate School in Monterey, Calif. on Jan. 22. ULTRASat has now shipped to Cape Canaveral, where it will be attached to the Atlas V.

The launch date is currently listed as no earlier than May 6. The rocket’s primary payload is designated AFSPC-5, an acronym that stands for Air Force Space Command.

Photo: Naval Postgraduate School
ULTRASat - ULTRASat contains of a flock of CubeSats that will hitch a ride
to orbit in May 2015 aboard an Atlas V rocket. The Planetary Society's
LightSail spacecraft was integrated into ULTRASat on Jan. 22, 2015.

LightSail is flying under the banner of NASA’s Educational Launch of Nanosatellites program—ELaNa. This iteration of the program is ELaNa XI, and LightSail is the only ELaNamember booking a ride aboard ULTRASat. The May flight is a shakedown cruise designed to test LightSail’s systems ahead of a full-fledged solar sailing demonstration in 2016.

The Planetary Society is finalizing a web dashboard that will display LightSail’s ground track and telemetry data. The data will include temperature readings, power levels and rotation rates as LightSail soars around the globe, stabilizing itself using Earth’s magnetic field.

While LightSail will not be visible to the naked eye during its four-week checkout phase, it may be viewable from some locations around dawn and dusk after the sails are deployed. Visitors to the LightSail dashboard will receive predictions on when the spacecraft will be visible from their location. However, due to atmospheric drag, the 2015 test mission is expected to end just two to ten days after sail deployment.


In honor of our May 2015 test flight, we've released a brand new
LightSail website.The project's new home includes spacecraft details,
a mutli-part history series, and a multimedia gallery.

Meanwhile, work progresses on the Society’s second LightSail spacecraft, dubbed LightSail-B, which will fly to a circular, 720-kilometer orbit in 2016—high enough to demonstrate controlled solar sailing and create more viewing opportunities. LightSail-B will be paired with Prox-1, a small Georgia Tech spacecraft designed to demonstrate automated rendezvous and inspection techniques.

The lessons learned while preparing for the LightSail test mission are already being applied to LightSail-B. Currently planned improvements include radio upgrades, new stiffener brackets and additional mirrors that will be used for ground-based laser ranging. These upgrades are being performed by Ecliptic Enterprises Corporation, the project’s prime contractor. Additionally, the second LightSail spacecraft will use a momentum wheel and sun sensors to tack like a sailboat, allowing to turn toward and away from the sun’s continual stream of photons.

Photo: Naval Postgraduate School
ULTRASat enclosed in shipping container - A team of engineers at the Naval
Postgraduate School in Monterey, Calif. prepare ULTRASat to be shipped to
Cape Canaveral, Fla., where it will be integrated to an Atlas V rocket for launch.


Fonte: Website “The Planetary Society” -  http://www.planetary.org/

Comentário: Pois é leitor, este projeto é fantástico, pois testará em voo uma das formas possíveis de propulsão espacial que poderá no futuro levar cubesats além da órbita terrestre, coisa que os japoneses há cerca de dois anos já testaram com sucesso no espaço e que nos EUA, além da The Planetery Society, a própria NASA e várias universidades já trabalham em missões lunares com cubesats com este tipo de propulsão. Fantástico, isto sim que é um programa espacial de verdade e promissor. Isto sim que é inovação, isto sim que é apostar no futuro. Aproveitamos para agradecer ao Dr. Otávio Durão pelo envio deste artigo.

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