HARDWARE / PRODUCTUpdated 25 Jun 2026

M-1000 Satellite Bus

Momentus Space
Spacecraft up to 1,000 kg · Small class (FAA) what this means
M-1000 Satellite Bus
Vigoride Orbital Service Vehicle during cleanroom integration · © Momentus Space (source)

The M-1000 is Momentus' flight-proven commercial satellite bus, designed as a low-cost, high-power platform for commercial constellation operators and U.S. Government customers, with flexible configuration and rapid manufacturing cadence.

Typed specifications28 values

Discloses 6 of 7 fields engineers filter by in this category (category median 3).

Data interface
RS-485
datasheet p.2 Ethernet GigE  |  SpaceWire
Design lifetime
5 years
orbital lifetime · datasheet p.2
Form factor
ESPA
ESPA Grande, standard · datasheet p.2
Orbit
LEO
datasheet p.2 lunar cislunar  |  GEO
Max payload mass
800 kg
max · dedicated / cake topper · datasheet p.2 350 kg max · ESPA Grande, standard
Payload volume
1 000 L
payload volume · datasheet p.2
Power available to payload
1 000 W
orbit-average power · datasheet p.2 3 000 W max · peak power available
Regulated voltages for the payload
28 V
28 V regulated, low- and high-power · datasheet p.2
Unregulated bus for the payload
40 V
min · 40 V to 60 V unregulated · datasheet p.2 60 V max · 40 V to 60 V unregulated
Onboard storage for payload data
274.9 GB
printed 256 GiB (standard), configurable · datasheet p.2
Pointing accuracy
0.003 °
max · pointing control, available option · datasheet p.2 0.028 ° max · pointing control, standard
Propulsion
included
chemical (green) 4 N and Hall effect (Kr) 78 mN · datasheet p.2
Delta-v
500 m/s
chemical (green), 4 N · datasheet p.2 2 000 m/s Hall effect (Kr), 78 mN, printed 2 km/s
Payload data downlink rate
400 000 kbps
max · mission data downlink rate · datasheet p.2
Max satellite wet mass
1 000 kg
max · launch mass, dedicated / cake topper · datasheet p.2 550 kg max · launch mass, ESPA Grande, standard
Payload mounting
payload mounting area 2.7 m²
datasheet p.2
Flight heritage
Flight-proven (based on Vigoride)
product page
Satellite class
ESPA-class
ESPA Grande, standard · 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 supplier3 lines, in the manufacturer's own wording
Peak power
up to 3 kW
Flight heritage
Flight-proven (based on Vigoride)
Target customers
Commercial constellations and U.S. Government

About

The Momentus M-1000 Satellite Bus is a versatile spacecraft bus designed to host third-party payloads in LEO. Providing up to 1000 kg total mass capacity, the M-1000 delivers power generation, thermal control, attitude control, propulsion, and data handling services for hosted payload customers. Enables satellite operators to focus on their mission payload while Momentus manages spacecraft bus operations.

Documentation

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

Source: momentus.space ↗

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