TDRS spacecraft pass system level reviews

Feb 22, 2010

NASA's Tracking and Data Relay Satellite (TDRS) K-L program completed its Critical Design Review (CDR) and Production Readiness Review (PRR) in El Segundo, Calif. on Feb. 19.

The CDR and PRR bridge the design and manufacturing stages of the TDRS program. With the successful completion of this review, Boeing Space Intelligence Systems will proceed with assembly of the K and L satellites.

NASA's Tracking and Data Relay Satellite System (TDRSS) consists of eight in-orbit communication satellites stationed at geosynchronous altitude and the ground stations located at the White Sands Complex near Las Cruces, New Mexico, and at Guam. The system is capable of providing coverage to user for up to 100 percent of each orbit.

When the K and L satellites join the TDRS on-orbit constellation, they will provide critical voice, video, mission payload data, and health and safety data relay services to Earth-orbiting spacecraft. "The K-L series of spacecraft are critical for ensuring the continued availability of high bandwidth communications necessary for the success of NASA missions, such as the , the , and a host of launch vehicles," said TDRS Project Manager Jeff Gramling at NASA's Goddard Space Flight Center in Greenbelt, Md.

NASA project, program, headquarters officials, and independent review team members participated in reviews that evaluated the TDRS K-L spacecraft, ground, and mission design, including spacecraft assembly and systems integration, testing and safety requirements.

"Successfully completing these reviews is an important milestone," said Pete Vrotsos, Space Communication and Navigation (SCaN) Network Services Director at NASA Headquarters in Washington. "These new spacecraft will enable NASA to replenish aging TDRSS spacecraft and maintain the outstanding level of communications services to NASA and the nation."

TDRS K and L are the 11th and 12th satellites, respectively, to be built for TDRSS, which was established in 1983 to replace NASA's worldwide network of ground tracking stations.

The TDRS Project Office at Goddard manages the TDRS K development and launch program. Goddard's Exploration and Space Communications Division manages the operation of the TDRS System (the Space Network). The SCaN Office within the Space Operations Mission Directorate at NASA Headquarters has programmatic responsibility for communications and navigation services required by NASA missions, provided by the Near Earth Network, the Deep Space Network and the geosynchronous Space Network.

Explore further: Mysteries of space dust revealed

add to favorites email to friend print save as pdf

Related Stories

Sophisticated weather satellite rockets into orbit

Jun 28, 2009

(PhysOrg.com) -- The latest Geostationary Operational Environmental Satellite, GOES-O, soared into space today after a successful launch from Space Launch Complex 37 at the Cape Canaveral Air Force Station ...

NASA, NOAA set to launch new environmental satellite

May 04, 2005

NASA is set to launch the new National Oceanic and Atmospheric Administration (NOAA) Polar-orbiting Operational Environmental Satellite (POES), another critical link in the development of a global Earth-observation program. The spa ...

Recommended for you

Mysteries of space dust revealed

Aug 29, 2014

The first analysis of space dust collected by a special collector onboard NASA's Stardust mission and sent back to Earth for study in 2006 suggests the tiny specks open a door to studying the origins of the ...

A guide to the 2014 Neptune opposition season

Aug 29, 2014

Never seen Neptune? Now is a good time to try, as the outermost ice giant world reaches opposition this weekend at 14:00 Universal Time (UT) or 10:00 AM EDT on Friday, August 29th. This means that the distant ...

Informing NASA's Asteroid Initiative: A citizen forum

Aug 28, 2014

In its history, the Earth has been repeatedly struck by asteroids, large chunks of rock from space that can cause considerable damage in a collision. Can we—or should we—try to protect Earth from potentially ...

Image: Rosetta's comet looms

Aug 28, 2014

Wow! Rosetta is getting ever-closer to its target comet by the day. This navigation camera shot from Aug. 23 shows that the spacecraft is so close to Comet 67P/Churyumov-Gerasimenko that it's difficult to ...

User comments : 0