We help organisations prevent silent time and orbital computation errors in mission-critical systems through deterministic engineering and standards-aligned implementation.
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There is no single universal clock. Different official time
scales exist for civil time, atomic time, Earth rotation time,
and scientific modelling.
UTC, TAI, TT, UT1, and GPS are legitimate but not identical.
If systems use different time scales without strict and explicit
conversion, timestamps will automatically give different
physical moments. This leads to positional errors, incorrect
sequencing, and loss of reproducibility.
Event order depends on consistent time interpretation.
If one system applies leap seconds and another does not, or if
distributed nodes rely on different clock assumptions, valid
timestamps may appear correct but represent incorrect ordering.
Transactions, commands, or computations may execute out of
sequence without visible failure.
Earth does not rotate uniformly. Its axis wobbles and its spin
rate changes slightly.
Space agencies publish official Earth Orientation Parameters
including UT1 corrections and polar motion values.
If systems use different versions of this data, or mix predicted
and final releases, the same timestamp can produce different
spatial results.
There is more than one way to measure time.
Atomic time is based on laboratory clock vibrations. Dynamical
time is used to calculate planetary motion and accounts for
relativistic effects.
These systems are not identical.
ΔT represents the difference between Earth rotation time and
dynamical time. If different ΔT models are used, long term
astronomical and orbital calculations diverge.
Positions in space and on Earth depend on coordinate frames.
Planetary positions, satellite orbits, spacecraft trajectories,
telescope pointing, and ground coordinates all require explicit
frame definition.
If systems mix frames without precise transformation, the
numbers remain mathematically valid but represent the wrong
physical location.
Official time and Earth rotation adjustments are updated over
time.
Space agencies publish predicted values for real time use and
later release final validated corrections.
If systems do not preserve exactly which correction dataset was
used, recalculating the same historical date can produce
different results.
These issues rarely fail loudly. They accumulate, becoming operational cost, scientific instability, audit exposure, or mission risk.
We prevent silent time and orbital computation errors through
standards-aligned engineering and reproducible computational design.
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Space-Time Systems Engineering
Celestial Mechanics Infrastructure
Computational Integrity Architecture
Our implementations align with IERS, IAU, SOFA, SPICE, and GNSS standards. We do not redefine standards. We implement them deterministically and transparently.
Computes planetary motion without reliance on third-party runtime APIs (computational sovereignty).
No runtime dependency on external web services for ephemeris, time scale, or Earth orientation calculations.
Enables deterministic historical replay, operational resilience in air-gapped environments, stability across vendor/API changes, long-horizon archival reproducibility, and explicit standards control.
ECS Systems is a standards-aligned, deterministic implementation layer designed for continuity and auditability.
We evaluate:
Deliverables:
Typical engagement: 2-4 weeks depending on system complexity.