Viasat Selected by NASA to Provide Cost-Effective, Near-Earth Communication Services

Viasat Selected by NASA to Provide Cost-Effective, Near-Earth Communication Services

Viasat, a global communications company, has announced that it was selected by NASA (on April 20th) to support its Communications Services Project (CSP), which seeks to accelerate the development of near-Earth communications by partnering with commercial satellite communications (SATCOM) providers. Aligned to the CSP objectives, Viasat is developing a space relay capability that will leverage its upcoming ViaSat-3 global satellite constellation, with a newly developed terminal that will enable on-demand and cost-effective communications services for LEO spacecraft anywhere and at any time in their global orbit.

Many satellites operating in Low Earth Orbit (LEO) routinely collect data, such as Earth and weather observations, radar measurements, space situational awareness, and other scientific data, that must be sent back to Earth in real-time. In choosing how to transport this data back to Earth for analysis and distribution, satellite operators often must consider a tradeoff between data latency, the time between data collection to when it is received back on Earth, and cost.

Viasat's existing RTE service has already reduced the cost to satellite operators by not requiring them to build and operate a costly, global network of ground station antennas to receive data from the LEO satellite; however, operators must wait until their satellites fly over a ground station to downlink their data. This introduces latency that can last from minutes to hours. Viasat's space relay service will give LEO operators the ability to send data—in real-time, from any point in LEO orbit—leveraging the upcoming ViaSat-3 Geostationary Orbit (GEO) network, which will include three Terabit-class high-throughput satellites.

Viasat's integrated space relay network will offer the best of both worlds by providing adaptable transport selection between the RTE ground network and ViaSat-3. This is expected to greatly reduce data latency by providing an affordable option for time-critical, latency-sensitive data transfer, while simultaneously offering multiple daily opportunities to downlink large amounts of data over a global ground network at very low cost. The Viasat RTE network currently operates on five continents, with sites in North America, South America, Europe, Australia and Africa.

"Under NASA's CSP program, Viasat will accelerate the deployment of its space relay services to support commercial and government NGSO operators, whether their space vehicles' mission is performing atmospheric analysis or rapidly moving data to support warfighters at the tactical edge," said Craig Miller, President of Viasat Government Systems. "The Viasat space relay service will deliver performance and scale beyond legacy data relay capabilities by transforming the way data is moved to and from space vehicles, offering persistent coverage to large numbers of LEO users simultaneously, with real-time access virtually anywhere, including the polar regions. The service will provide operators with the unique flexibility to switch between space relay and RTE direct-to-Earth depending on what the mission requires."

Viasat is currently developing a space-qualified Ka-band terminal to give LEO operators access to the ViaSat-3 network for data transfer. Additional information on this terminal is available to operators seeking to evaluate integration on their space vehicles.

Click here to learn more about the Viasat-3 Satellite Constellation.

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Publisher: SatNow
Tags:-  Satellite

GNSS Constellations - A list of all GNSS satellites by constellations

beidou

Satellite NameOrbit Date
BeiDou-3 G4Geostationary Orbit (GEO)17 May, 2023
BeiDou-3 G2Geostationary Orbit (GEO)09 Mar, 2020
Compass-IGSO7Inclined Geosynchronous Orbit (IGSO)09 Feb, 2020
BeiDou-3 M19Medium Earth Orbit (MEO)16 Dec, 2019
BeiDou-3 M20Medium Earth Orbit (MEO)16 Dec, 2019
BeiDou-3 M21Medium Earth Orbit (MEO)23 Nov, 2019
BeiDou-3 M22Medium Earth Orbit (MEO)23 Nov, 2019
BeiDou-3 I3Inclined Geosynchronous Orbit (IGSO)04 Nov, 2019
BeiDou-3 M23Medium Earth Orbit (MEO)22 Sep, 2019
BeiDou-3 M24Medium Earth Orbit (MEO)22 Sep, 2019

galileo

Satellite NameOrbit Date
GSAT0223MEO - Near-Circular05 Dec, 2021
GSAT0224MEO - Near-Circular05 Dec, 2021
GSAT0219MEO - Near-Circular25 Jul, 2018
GSAT0220MEO - Near-Circular25 Jul, 2018
GSAT0221MEO - Near-Circular25 Jul, 2018
GSAT0222MEO - Near-Circular25 Jul, 2018
GSAT0215MEO - Near-Circular12 Dec, 2017
GSAT0216MEO - Near-Circular12 Dec, 2017
GSAT0217MEO - Near-Circular12 Dec, 2017
GSAT0218MEO - Near-Circular12 Dec, 2017

glonass

Satellite NameOrbit Date
Kosmos 2569--07 Aug, 2023
Kosmos 2564--28 Nov, 2022
Kosmos 2559--10 Oct, 2022
Kosmos 2557--07 Jul, 2022
Kosmos 2547--25 Oct, 2020
Kosmos 2545--16 Mar, 2020
Kosmos 2544--11 Dec, 2019
Kosmos 2534--27 May, 2019
Kosmos 2529--03 Nov, 2018
Kosmos 2527--16 Jun, 2018

gps

Satellite NameOrbit Date
Navstar 82Medium Earth Orbit19 Jan, 2023
Navstar 81Medium Earth Orbit17 Jun, 2021
Navstar 78Medium Earth Orbit22 Aug, 2019
Navstar 77Medium Earth Orbit23 Dec, 2018
Navstar 76Medium Earth Orbit05 Feb, 2016
Navstar 75Medium Earth Orbit31 Oct, 2015
Navstar 74Medium Earth Orbit15 Jul, 2015
Navstar 73Medium Earth Orbit25 Mar, 2015
Navstar 72Medium Earth Orbit29 Oct, 2014
Navstar 71Medium Earth Orbit02 Aug, 2014

irnss

Satellite NameOrbit Date
NVS-01Geostationary Orbit (GEO)29 May, 2023
IRNSS-1IInclined Geosynchronous Orbit (IGSO)12 Apr, 2018
IRNSS-1HSub Geosynchronous Transfer Orbit (Sub-GTO)31 Aug, 2017
IRNSS-1GGeostationary Orbit (GEO)28 Apr, 2016
IRNSS-1FGeostationary Orbit (GEO)10 Mar, 2016
IRNSS-1EGeosynchronous Orbit (IGSO)20 Jan, 2016
IRNSS-1DInclined Geosynchronous Orbit (IGSO)28 Mar, 2015
IRNSS-1CGeostationary Orbit (GEO)16 Oct, 2014
IRNSS-1BInclined Geosynchronous Orbit (IGSO)04 Apr, 2014
IRNSS-1AInclined Geosynchronous Orbit (IGSO)01 Jul, 2013