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Deployment

Saiph at Low Earth Orbit

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 · Space

Track Saiph at Low Earth Orbit

Recent coverage

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Saiph thrusters are slated to provide RCS (augmenting CMGs) and deorbit capability for the Vast Haven-1 commercial space station, with launch targeted for 2027 and Q1 flight readiness. A Haven Demo mission launched Nov 2 2025 successfully tested the Saiph thrusters and deorbit sequence before deorbiting Feb 4 2026.

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.

Exposure

Customer segment
research
Scale tier
pilot lt10

Each exposure value carries its own basis marker. Aggregators report a number; this surface preserves the source class so verification depth travels with the value.

Safety record

No incidents on record for Saiph at Low Earth Orbit.

Only active incidents are counted. Retracted incidents are excluded from this summary but remain reachable at their canonical URLs.

Trust tier
Catalog entry · 2 sources · not yet field-verifiedhow tiers work →
Last updated
2026-08-21
Model
Saiph
Company
Impulse Space
Location
Low Earth Orbit
Operator
Impulse Space
Status
announced
Operator type
maker operated
Scale at site
2 to 10 units
Site environment
mixed
Location precision
verified coordinates
First seen
2025-06-01
ID
5d52f7ec-9832-441c-a701-aff73a117500

Timeline

  1. Jun 2025
    First recorded
    Saiph first documented operating at Low Earth Orbit.
  2. Jun 2026
    created
  3. Aug 2026
    Current status: announced, reviewed
    Latest recorded state. New status transitions append here as the deployment-status recorder produces them.

On the deployment map

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Saiph operates in Low Earth Orbit. Explore the full verified map:

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 2026-08-21

Verification posture

Verified

Low confidence

Review state

Stable

Last reviewed 2026-08-21

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.

Common questions

What is the Saiph deployment at Low Earth Orbit?
Saiph, built by Impulse Space, is recorded as a deployment at Low Earth Orbit on the DEPLOY registry. Impulse Space operates the deployment directly.
Who operates Saiph at Low Earth Orbit?
Impulse Space, the manufacturer of Saiph, operates this deployment directly. This is a maker-deploys-its-own-product arrangement rather than a customer pilot.
When did the Saiph deployment at Low Earth Orbit go live?
The deployment is recorded as starting June 1, 2025 on the DEPLOY registry. Earlier activity may exist but is not yet sourced.
Is the Saiph deployment at Low Earth Orbit still active?
As of the most recent verification on the DEPLOY registry, this deployment is announced but not yet operating.
Have there been incidents at the Saiph deployment at Low Earth Orbit?
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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