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rotastellar

The operating system for orbital compute.

March 2026

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rotastellar

Every cloud assumption
breaks in orbit.

99.99% uptime ~35% eclipse per orbit

No Constant Power

Satellites lose solar power every 90 minutes. Compute must be scheduled around eclipse cycles, battery reserves, and thermal limits.

Always connected 8-12 min contact/pass

No Permanent Connectivity

Ground station passes last minutes and happen a few times per day. Data must queue, compress, and transfer across windows.

<1ms latency 5–40ms LEO, 240ms+ GEO

Variable Latency

Link quality changes with elevation angle. Bit error rates fluctuate. Forward error correction must adapt dynamically per pass.

Send a technician Impossible above 200km

No Manual Recovery

10–100 bit flips/device/day from radiation. Zero convection for cooling. Software must be autonomous and fault-tolerant.

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rotastellar

The hardware race
is already here.

SpaceX
1M+
Planned orbital data center satellites. Starlink infrastructure repurposed for compute.
Starcloud
88,000
Satellite constellation. Already proved LLM training in orbit (2025).
Axiom Space
Live
Operational compute nodes on the ISS since January 2026.
China
200,000
Planned satellite constellation for space-based compute and communications.
Blue Origin
TeraWave
Orbital compute initiative announced alongside New Glenn heavy launch vehicle.
Google
2027
Project Suncatcher targeting orbital data center deployment within two years.

Billions are going into hardware. Nobody is building the software layer. These satellites need an operating system that understands orbital mechanics.

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rotastellar

Our insight

Every orbital compute company retrofits cloud models to space.

We designed compute primitives that are native to orbital physics.

Eclipse periods aren't downtime — they're scheduled compute windows. Communication passes aren't constraints — they're deadline-driven execution units. Orbital mechanics isn't a limitation — it's the programming model.

Eclipse: ~35% of orbit Contact: 8-12 min/pass Radiation: 10-100 SEU/day Thermal: -150 to +150°C Latency: 5-240ms+ Cooling: radiation only
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rotastellar

The platform

Tracking API

Space Catalog

Real-time tracking of 14,610 satellites. Orbital propagation, conjunction detection, feasibility analysis.

CAE Engine

Compute Planner

Constraint-aware scheduler. Decides what runs on-board vs. ground based on power, thermal, and data reduction.

Sim Service

Orbital Simulation

Stateless SGP4/SDP4 propagation. Position, velocity, eclipse state, ground passes — digital twins on demand.

Agent SDK

On-Orbit Runtime

Pull-based protocol for satellites with intermittent contact. Autonomous execution with checkpoint/resume.

Console

Mission Control

Plan, deploy, and monitor orbital compute. Constellation health, alerts, team collaboration.

Full stack: from pip install rotastellar to mission control dashboard. Handles the physics so developers can focus on their workloads.
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rotastellar

What we've built

CAE Scheduler Shipped

4-phase constraint-aware planner. Automatic on-board vs. ground placement with adaptive FEC selection. Published research paper.

5 presets + custom DAGs • <2s planning latency

Mission Control Console Live

Full SaaS product. Missions, plan comparison, real-time globe with 14.6k satellites, constellation health monitoring, team workspaces.

console.rotastellar.com • Stripe billing live

BYOS — Bring Your Own Satellites Live

Users define custom satellites with orbital elements. Full monitoring: passes, visibility, latency analysis. Private by default, org-scoped.

Custom orbital elements • Sim service integration

Agent Protocol + SDKs Shipped

Rust agent for on-satellite execution. Python SDK for developers. Pull-based protocol designed for intermittent ground contact.

pip install rotastellar • cargo add rotastellar-agent

Feasibility Engine Live

10-factor satellite feasibility scoring: altitude, eclipse, thermal cycling, communication windows, power budget. Letter grade + recommendations.

A–D grading • Per-satellite analysis

Constellation Intelligence Live

Batch planning across entire constellations. Health aggregation: conjunction risk, feasibility scores, fleet-wide monitoring with alerts.

12 ground stations • Real-time conjunction alerts

Orbital Simulation Live

Stateless SGP4/SDP4 propagation at the edge. 8 endpoints for position, velocity, eclipse state, ground passes, trajectory, and constellation templates.

sim.rotastellar.com • No API key required
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rotastellar

How a mission works

01

Define Workload

Pick a preset (ML inference, earth obs, federated learning) or build a custom step DAG with dependencies.

02

Select Target

Choose from 14.6k tracked satellites, import from the rotastellar catalog, or define custom orbital elements.

03

Plan Execution

CAE engine builds physics-grounded plan: placement decisions, transfer scheduling, window allocation.

04

Deploy + Monitor

Agent executes on-orbit. Real-time telemetry, event streaming, checkpoint/resume across contact windows.

Data reduction example: Earth observation captures 5GB of imagery. On-board ML inference reduces to 26MB. Only the results need to be downlinked — a 190:1 reduction that saves hours of ground station time and thousands in bandwidth costs.
07
rotastellar

Traction & milestones

14,610
Satellites tracked
12
Ground stations modeled
<2s
Plan generation time
3
Pricing tiers live
Jan 2026Developer SDKs shipped (Python + Rust)
Feb 2026Mission Control console deployed to production
Mar 2026CAE v1.0 shipped — constraint-aware execution planner
Mar 2026Research paper published to arXiv
Mar 2026BYOS system + satellite catalog + constellation health live
Mar 2026Stripe billing, org teams, email notifications deployed
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rotastellar

Business model

Free
$0
forever
  • 3 missions
  • 5 watchlist satellites
  • 1 API key
  • Full satellite catalog
Team
$99
per month
  • Everything in Pro
  • 20 API keys
  • Team workspaces
  • Member management

Expansion revenue

SaaS subscriptions are the entry point. As customers move to production deployments, revenue expands through per-execution compute pricing (metered API usage), enterprise contracts for dedicated ground station time, and managed agent deployments for constellation operators.

09
rotastellar

Novel IP: 5 inventions

1

Orbital Compute Primitives

First execution model designed for orbit, not adapted from cloud. Eclipse-steps run during darkness, window-steps adapt to deadlines, pass-steps fit single contacts. No prior art exists.

2

Predictive Pareto Planning

Every orbital scheduler returns one plan or fails. Ours returns a Pareto frontier of trade-offs: fastest vs. highest quality vs. lowest energy. Operators choose, not the system.

3

Constellation DAG Orchestration

No system executes multi-step workflows across multiple satellites. We distribute DAG steps across constellation members with ISL routing and fault-tolerant partial results.

4

Eclipse-Boundary Preservation

IoT checkpoints reactively on power loss. Orbital eclipses are predictable to the second. We checkpoint proactively before predicted hazards — zero wasted computation.

5

Orbital Compute Unit (OCU)

Cloud has vCPUs. Space has nothing. We define the first formal resource abstraction for heterogeneous satellite fleets — from 3U CubeSats to large buses.

6

Full Stack + Right Timing

The only platform from catalog to execution: tracking, planning, on-orbit agent, mission control, SDKs. Hardware companies build satellites — we build the software layer.

10
rotastellar

Team

Rota, Inc. is a family of companies building infrastructure for AI and compute. rotastellar is the space computing division. Our team brings experience from Google, Microsoft, and leading aerospace companies, with backgrounds in data engineering, AI research, cloud infrastructure, and aerospace engineering.

Rota, Inc.

Parent company based in San Francisco. Also operates rotalabs.ai (AI safety research) and rotascale.com (enterprise AI infrastructure).

Infrastructure

Lean deployment on Cloudflare Workers (global edge, auto-scaling) + OVH dedicated server. Efficient infrastructure — entire platform runs on minimal compute.

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rotastellar

The ask

$500K
Seed round
18 mo
Runway

Hire 2 engineers (orbital systems + distributed systems), secure enterprise design partners, and ship constellation DAG orchestration — the first multi-satellite workflow execution engine.

rotastellar

Try it now

console.rotastellar.com  •  docs.rotastellar.com  •  rotastellar.com
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