Maxar Selects Sierra Space to Provide Solar Power Solutions for Proliferated LEO Satellites

Maxar Selects Sierra Space to Provide Solar Power Solutions for Proliferated LEO Satellites

Sierra Space, a space company building an end-to-end business and technology platform in space to benefit life on Earth, announced that the company has won a significant space defense contract with Maxar. Under the agreement, Sierra Space will provide revolutionary solar power solutions and production capability.

This contract will support a constellation of 16 satellites that use Maxar’s proliferated low Earth orbit (LEO) spacecraft platform, which is designed to support a wide variety of global coverage missions, including Earth observation, communications, and national security.

“Sierra Space offers our proliferated LEO platform the critical performance that is needed to meet the mission requirements,” said Joe Foust, Maxar’s Vice President of proliferated LEO Constellations. “Their innovative technological and production approach will be instrumental in meeting our demanding performance expectations.”

“Sierra Space is very pleased to be working with Maxar to showcase our technology and expertise that can drive space applications business and fast-evolving category for both civil and national security applications,” said CEO Tom Vice. “Sierra Space is leveraging the same revolutionary new technology to power our innovative spaceplanes and space stations.”

Sierra Space is actively developing and executing high-volume electronics manufacturing techniques for the automated production of solar arrays using its surface mount technology solar cell capabilities. The Sierra Space arrays provide higher power density, reduced lead times, and unparalleled resilience as compared to conventional solar cell technologies.

The Sierra Space arrays, currently in production in Louisville, CO, are built for multiple applications including lunar surface missions, individual and small spacecraft constellations, and – most recently – national security systems. Sierra Space provides arrays ranging from very small systems to large multi-kilowatt users. The technology is easily configurable to rigid or flexible interfaces and can be adapted to fit complex contoured surfaces.

Sierra Space can offer a customized solar array by combining our patented solar panel production process and standard pick-and-place solar cell configuration. This automated process allows Sierra Space to deliver solar arrays with higher specific power in less than one-half the duration of a conventional solar array.

“We can put solar panels almost anywhere on a satellite,” said Brian Anthony, VP for Space Solar Power Systems at Sierra Space. “Our automation systems can generate arrays quickly, measured in watts per minute. The current focus of Sierra Space is to streamline the development of specific array configurations from our baseline of commercial designs to satisfy customer requirements, optimal testing, and expediting supply.”

Sierra Space Solar Power Systems is a division of the company’s Space Applications Business Unit, which is an established supplier of high-reliability spacecraft hardware with multiple areas of expertise including space solar power generation, precision pointing and motion control, vehicle and in-space engines, spacecraft environmental and thermal control and life support systems. For decades, the company has played a key role in space science and exploration, with a long legacy of contribution to government, commercial, and civil customers on a diverse set of missions with 100% operational success.

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Publisher: SatNow

GNSS Constellations - A list of all GNSS satellites by constellations


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


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


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


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


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