Study Material | Test Series
Drishti IAS
call1800-121-6260 / 011-47532596
Drishti The Vision Foundation
(A unit of VDK Eduventures Pvt. Ltd.)
mains Test Series 2018
Lunar laser mission of NASA may increase space communication
Jan 01, 2014

NASA's lunar laser mission thirty day trial has confirmed the possibility of expanding broadband capabilities in space using laser communications is as bright as expected. The Lunar Laser Communication Demonstration (LLCD) mission was designed to confirm laser communication capabilities from a distance of almost a quarter-of-a-million miles. In addition to demonstrating record-breaking data download and upload speeds to the Moon at 622 megabits per second (Mbps) and 20 Mbps, respectively, LLCD also showed that it could operate as well as any NASA radio system.

LLCD demonstrated error-free communications during broad daylight, including operating when the moon was to within three degrees of the Sun as seen from Earth.

LLCD also demonstrated error-free communications when the Moon was low on the horizon, less than 4 degrees, as seen from the ground station, which also demonstrated that wind and atmospheric turbulence did not significantly impact the system. LLCD was even able to communicate through thin clouds, an unexpected bonus.

Operationally, LLCD demonstrated the ability to download data from the LADEE spacecraft itself.

This experiment demonstrates that technology could serve as the primary communications system for future NASA missions.


Helpline Number : 87501 87501
To Subscribe Newsletter and Get Updates.

http://www.drishtiias.com/upsc-current-affairs-article-Lunar-laser-mission-of-NASA-may-increase-space-communication