HARDWARE / PRODUCTUpdated 23 Aug 2026

Ambassador

Terran Orbital
Spacecraft up to 500 kg · Mini class (FAA) what this means
Ambassador

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

Typed specifications25 values

Discloses 4 of 7 fields engineers filter by in this category (category median 3).

Form factor
ESPA
Configuration ESPA-Grande · datasheet p.2
Orbit
LEO
Applications LEO; native orbits 400km-1200km · datasheet p.2
Max payload mass
200 kg
max · Available Payload Mass, up to · datasheet p.2
Payload envelope (L × W × H)
104 cm x 112 cm
Payload Deck Area (height not given) · datasheet p.2
Regulated voltages for the payload
12 V
12V rail available · datasheet p.2 9 V 9V rail available
Unregulated bus for the payload
66 V
nom. · 66V System Power · datasheet p.2
Power generation (orbit average)
1 500 W
max · peak (Max Solar Array Power) · datasheet p.2
Pointing accuracy
0.003–0.014 °
10 to 50 arcseconds; higher accuracy available · datasheet p.2
Propulsion
optional
product page included 1150s hall effect standard, options available; thrust 17mN
Payload data downlink rate
2 000 kbps
S-band downlink (uplink 125 Kbps) · datasheet p.2 650 000 kbps X-Band downlink
Radio band
S
datasheet p.2 X
Subsystems included
battery
66V Battery Modules (8-12) · datasheet p.2 EPS 66V MPPT (2-3), 66V Load Controller, 28V Low-power and High-p…  |  other Backplane; LDRR (2); MDR (2)  |  ADCS Coarse Sensors (4), Gyro Assembly, Star Trackers (3), Magneto…  |  OBC Flight Computers (2), Watchdog  +2
Max satellite wet mass
500 kg
max · Launch Mass (Wet), up to; maximum mass may not be supported o… · datasheet p.2
Rail standard
ESPA
ESPA-Grande or similar interface · datasheet p.2
Satellite class
ESPA-class
ESPA-Grande · datasheet p.2

Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.

As published by the supplier13 lines, in the manufacturer's own wording
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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