HARDWARE / PRODUCTUpdated 23 Aug 2026

Ambassador

Terran Orbital
Ambassador

Premier ESPA-Grande rideshare microsatellite platform with up to 200kg payload and optional Type 1 encryption for DoD/Intel missions.

Key figurescomparable across the catalogue

Mass
500 kg
Payload capacity
200 kg
Power
1,500 W
Thrust
0.017 N
Data rate
0.125 Mbps

Normalised to common units so this product can be compared with others in its category. The supplier's own wording is below.

As published by the supplier

Configuration
ESPA Grande
Applications
LEO
Native orbits
400 km - 1200 km
Launch mass (Wet, max)
Up to 500 kg
Available payload mass
Up to 200 kg
Max solar array power
1.5 kW (3rd-party solar array included)
Redundancy
Dual-string
Power system
66 V system power; 12 V, 9 V rails available
Communication data rate
S-band: 125 Kbps uplink, 2 Mbps downlink; X-band: 650 Mbps downlink
Propulsion
1150s Hall-effect standard, options available
Thrust
17 mN
Payload deck area
104 cm x 112 cm
Pointing accuracy
10 to 50 arcseconds, higher accuracy available

About

Ambassador comes with Terran Orbital’s standard mini-satellite EPS architecture and builds off the entire product line of spacecraft platforms with the same avionics and GNC algorithms. The reaction wheels on the Ambassador are sized to allow the spacecraft to maintain agility, and the platform is designed from the ground up to be compatible with rideshare requirements. Ambassador supports commercially available or custom payloads and offers optional Type 1 encryption for military-grade security. It includes a propulsion system ideal for phasing a constellation into its mission orbit, station keeping, and disposal. The precursor to the Ambassador (Zuma+) was designed for the Space Development Agency’s Tranche 1 Transport Layer.

Key benefits: the largest deck area allowed by an ESPA-Grande interface for rideshare missions; top offering for the DoD/Intel community with the largest available payload and optional Type 1 encryption.

Baseline modules included: Flight Computers (2), Watchdog Backplane, 66V Battery Modules (8-12), 66V MPPT (2-3), 66V Load Controller, 28V Low/High-power Point-of-Load (varies), Coarse Sensors (4), Gyro Assembly, Star Trackers (3), GPS (2), Magnetorquers (3), Reaction Wheels (4), LDRR (2), MDR (2).

Documentation

Need the full ICD, test reports or a specific revision? Ask the supplier directly.

Source: terranorbital.com ↗

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