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Deployment

Saiph at Low Earth Orbit (LEO)

22 N bipropellant thruster using nitrous oxide and ethane. Qualified May 2023. Storable, non-toxic, spark-ignited. Flight heritage on Mira OTV flights (LEO Express-1 and 2) and Haven Demo (Vast). Selected for Vast Haven-1 space station propulsion (RCS + deorbit).

Saiph by Impulse Space · Catalog entry · 2 sources · not yet field-verified


Machine-readable surfaces

Key facts

Mission
Vast Haven-1 commercial space station propulsion
System
Saiph thrusters for RCS (augmenting CMGs) and deorbit
Target
Haven-1 launch targeted 2027 (Q1 flight readiness)
Validation
Haven Demo (launched Nov 2 2025) successfully tested Saiph thrusters and deorbit; deorbited Feb 4 2026.
Trust tier
Catalog entry · 2 sources · not yet field-verified
Last updated
2026-06-07
Model
Saiph
Company
Impulse Space
Location
Low Earth Orbit (LEO)
Status
planned
ID
5d52f7ec-9832-441c-a701-aff73a117500

Sources (2)

  1. https://www.vastspace.com/updates/vast-selects-impulse-space-for-haven-1-space-station-propulsion
  2. https://www.impulsespace.com/propulsion/saiph
Methodology: Verified · 2 sources (no primary) · last reviewed 2026-06-07

Verification posture

Verified

Low confidence

Review state

Stable

Last reviewed 2026-06-07

Maturity + lifecycle

Maturity stage: commercial

Lifecycle: active

Architectural position

Cohort: space

Sources by quality tier

2
unclassified
Unclassified source

The framework is documented at /methodology. Corrections at /corrections. Reviewer: DEPLOY editorial team.

Methodology surface for Saiph at Low Earth Orbit (LEO).

Common questions

What is the Saiph deployment at Low Earth Orbit (LEO)?
Saiph, built by Impulse Space, is recorded as a deployment at Low Earth Orbit (LEO) on the DEPLOY registry. Impulse Space operates the deployment directly.
Who operates Saiph at Low Earth Orbit (LEO)?
Impulse Space, the manufacturer of Saiph, operates this deployment directly. This is a maker-deploys-its-own-product arrangement rather than a customer pilot.
Have there been incidents at the Saiph deployment at Low Earth Orbit (LEO)?
No active incidents affecting this deployment are recorded on the DEPLOY registry. Absence of recorded incidents is not a guarantee no incident occurred; DEPLOY records only sourced incidents and suppresses retracted ones.

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