HARDWARE / PRODUCTAdded 1 Jul 2026

FreeForm Microsatellite Platform

U-Space
Spacecraft up to 140 kg · Micro class (FAA) what this means
FreeForm Microsatellite Platform

High-capacity microsatellite bus with a large, unobstructed Nadir-face payload volume and agile, sub-millidegree pointing for demanding Earth-observation and constellation missions.

Typed specifications46 values

Discloses 5 of 7 fields engineers filter by in this category (category median 3).

Mass
140 kg
datasheet p.0
Envelope (L×W×H)
480x600x800 mm
datasheet p.1
Data interface
UART
datasheet p.1 UART payload communication  |  SpaceWire  |  SpaceWire payload communication  |  CAN  +1
Design lifetime
5 years
datasheet p.1 5 years row printed once for both 16U and Freeform
Form factor
custom
Freeform (non-CubeSat) platform · datasheet p.1
Orbit
LEO
LEO, 50° to SSO, All LTANs · datasheet p.1 SSO LEO, 50° to SSO, All LTANs
Max payload mass
80 kg
max · Payload Mass max. · datasheet p.1
Payload volume, U
480x600x800 mm
datasheet p.1
Payload envelope (L × W × H)
480x600x800
datasheet p.1 480 x 600 x 800 Payload Volume
Power available to payload
78 W
orbit average, SSO 550 km, LTAN 12h-24h · datasheet p.1 175 W orbit average, SSO 550 km, LTAN 6h-18h  |  78 W orbit average, SSO 550km, LTAN 12h-24h  |  175 W orbit average, SSO 550km, LTAN 6h-18h  |  250 W min · peak (Payload Power max, printed '>250 W')  +1
Regulated voltages for the payload
28–33 V
4x1 high voltage lines, 28-33 V (regulated or not is not stated) · datasheet p.1 3.3–15 V 4x4 regulated lines (3.3-15V)  |  3.3–15 V 4x4 regulated lines, 3.3-15 V
Unregulated bus for the payload
28–33 V
4x1 high voltage (28-33V) · datasheet p.1 20–24 V up to 4x10 BNR (20-24V)  |  20–24 V up to 4x10 BNR (non-regulated) lines, 20-24 V
Power generation (orbit average)
270 W
Bus power generation (orbit average / BOL-EOL not stated) · datasheet p.1
Battery capacity
800 Wh
BOL · datasheet p.1 560 Wh EOL
Propulsion
included
Iodine 9 400 N.s or Electrospray 18 800 N.s total impulse · datasheet p.1
Payload data downlink rate
400 kbps
S-band downlink, command & control (row shared by 16U and Fre… · datasheet p.1 522 000 kbps max · X-band downlink, 'up to 522 Mbps' (row shared by 16U and Free…
Radio band
S
command & control uplink/downlink · datasheet p.1 X downlink
Subsystems included
EPS
datasheet p.1 ADCS GNC  |  propulsion Iodine or Electrospray  |  S-band radio S-Band uplink/downlink, command & control  |  battery  +1
Max satellite wet mass
140 kg
datasheet p.1 140 kg max · Spacecraft Mass Max
Satellite class
microsat 10-100 kg
datasheet p.1

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
Max payload mass
80 kg
Payload volume
480 x 600 x 800 mm
Peak power
250 W (comparative platform spec sheet: 200 W)
Payload average orbit power (PAOP)
LTAN 6H: 195 W; LTAN 10H30: 102 W
Downlink
S-Band: 400 kbit/s; X-Band: 522 Mbps
Pointing error (APE)
< 7 mdeg (164 urad, PAR 126 urad)
Absolute knowledge error (AKE)
< 5 mdeg (133 urad, PAR 94 urad)
Relative pointing error (RPE, 1s)
< 0.012 mdeg (11.5 urad, PAR 0.2 urad)
Slew maneuver
90 degrees in 60 seconds, with focal motion compensation (FMC)
Design life
5 years in LEO
Command link
Omnidirectional S-band, AES-256 encrypted
Propulsion total impulse
Up to 18,800 N.s
Architecture
Redundant subsystems, triplicated flight software

About

FreeForm is U-Space’s microsatellite platform, designed for missions requiring a high payload-mass-to-bus ratio and a large, well-separated payload volume on the Nadir face. It combines agile and precise guidance, navigation and control (pointing error under 7 mdeg, with 90-degree slews in 60 seconds and integrated focal-motion compensation for high-resolution imaging) with a design life of 5 years in LEO, redundant architecture and triplicated flight software for high reliability. Communications use an encrypted (AES-256) omnidirectional S-band link for command and control and a high-rate X-band downlink up to 522 Mbps. FreeForm supports payloads up to 80 kg in a 480x800x600 mm volume, up to 250 W peak power, absolute knowledge error under 5 mdeg, and scalable propulsion delivering up to 18,800 N.s of total impulse for station-keeping, collision avoidance and safe disposal. Applications include high-resolution Earth observation, RF surveillance/signals intelligence, in-orbit servicing and inspection, and ‘zero debris’ compliant constellation deployment. U-Space also offers optional turnkey services alongside the platform: end-to-end integration and validation with full ground-segment interoperability, hardware-in-the-loop simulator training, and standard satellite command, control and in-flight maintenance operations.

Documentation

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

Source: www.u-space.fr ↗

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