Maxar Completes Critical Design Review for its Satellite Platform Developed for the SDA

Maxar Completes Critical Design Review for its Satellite Platform Developed for the SDA

Maxar Technologies, a provider of comprehensive space solutions and secure, precise, geospatial intelligence, completed the first Critical Design Review (CDR) of the Maxar 300 series bus for L3Harris Technologies in support of the Space Development Agency’s Tranche 1 Tracking Layer (T1TRK) program. The T1TRK program is designed to provide global warning and tracking of conventional and advanced missile threats, including hypersonic missile systems.

Maxar’s inaugural Maxar 300 series bus is designed for eight or more space vehicles per launch while delivering the demanding low jitter and high power required for the missile defense mission.

“We designed the Maxar 300 series platform to be quickly scalable,” said Chris Johnson, Senior Vice President and General Manager for Space at Maxar. “The team completed CDR just ten months from the award, and we’re on schedule to begin production of our platforms later this year with initial deliveries in early 2024. Our customers need speed and agility while ensuring a superior technical product, and that’s what Maxar’s commercial experience can deliver.”

The comprehensive review examined the new system's principal elements, including structural design, power, attitude control, command, and data handling. Maxar will build 16 platforms for the T1TRK program, each about the width of a conventional oven. Those dimensions help the SDA achieve its goals to significantly reduce the size, weight, power, and cost compared to traditional missile detection satellites. The SDA mission will also adapt and extend Maxar’s deep commercial communications satellite experience for new uses.

Designed, engineered, and built in-house in California, the Maxar 300 buses are modular platforms that benefit from the company’s decades of experience building more than 90 spacecraft for low Earth orbit. Both the platform and Maxar’s production capacity are scalable, with the ability to address multiple missions with flexible production rates that meet delivery timelines.

Click here to learn more about Maxar Technologies Maxar 300 Series Platform.

Click here to learn about Satellite Platforms from various manufacturers listed on SATNow. 

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