About us

MIRATLAS SAS, designs and manufactures the Integrated Sky Monitor (ISM), which provides overlapping, continuous, live real-time, high resolution monitoring of the sky and atmospheric conditions.

The ISM is built for autonomous, remote 24/7/365 outdoor operation including a wide suite of  passive optical instruments available for the first time in such compact and easy to install package.

Deployed in network, ISMs allow simultaneous survey of potential sites for FSO ground stations or solar power plants.

During normal OGS or solar power plant operation, a local network of ISMs surrounding the facility allows the optimisation of operations by providing precise weather and atmospheric conditions nowcasting.

Integrated Sky Monitor

Integrated Sky Monitor


The ISM relies on a full powered Intel iCore system. The C++ software is partially open source and it is possible to access data for additional processing. The platform runs Linux Debian. Over 80% CPU is free for onboard data processing.

The small form factor and low energy requirement make the ISM easy to deploy in the field, even with solar powered batteries. Data may be backhauled using a low bandwidth mobile network over IP.

The ISM is composed of three appliances with a total power requirement <40W:

  • ISM main unit 15x17x17cm, 2.8kg IP67
  • Night Seeing Monitor, 38x16x16cm, 2.5kg IP67
  • External sensors, pylon mounted, 36x24x37, 2kg IP67

All Sky LWIR camera

All Sky LWIR camera


Seeing monitors

Nighttime, seeing in ArcSec, the Fried parameter r0 and scintillation RMS

Daytime, seeing in ArcSec and the Fried parameter r0

All-sky imaging

Visible, 350-1000nm, 6Mp, 185° FOV

Thermal, 8-14µm, 640×480, 180° FOV (optional)


Long wave down welling radiation (Wm-²) on a 40° field of view
Total column water vapor (cm) daytime, clear sky
Sky temperature (ºC)


Sky brightness (Mag/ArcSec²), including light pollution

Ambiant sensors

Temperature (°C)

Pressure (hPa)

Humidity (%)

Wind (ms-¹)

Rain (mm)


  • Embedded data processing, C++/Linux,
  • Partially open source,
  • Add you own detection/tracking algorithms,
  • Intel iCore with 80% free CPU.


FSO communication

  • Nighttime and daytime seeing and r0,
  • Cloud cover and transparency map,
  • Installation overnight on location,
  • OGS site survey and bandwith nowcasting,
  • Network architecture design and balancing.

Solar power

  • Cloud cover, transparency map and irradiance data,
  • Installation in a couple of hours on location,
  • Site survey and power production nowcasting,
  • Power grid optimisation and balancing.

Atmospheric studies

  • Atmospheric turbulence and transparency,
  • Urban Heat Island and pollution monitoring,
  • Northern lights, nightglow, light pollution,
  • Installation overnight on location,
  • Passive optical sensing,
  • Large territory cover with a network of ISMs.


  • Nighttime and daytime seeing and r0,
  • Cloud cover and transparency map,
  • Robotic telescope automation,
  • No mobile part.
  • Survey multiple observatories simultaneously,
  • Fraction of the cost of traditional DIMM sensors.


  • Realtime and passive optical detection for drone, plane, satellite, debris,
  • Redundant 3D tracking within an overlapping network of ISMs,
  • Installation in a couple of hours on location.


Thoughts too long for linkedin post on Direct to Earth Free Space Optical Communication.

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Linkedin Article

Optical & Radio communication for satellite backhaul

Miratlas is proud to help Kongsberg Satellite Service by providing complete characterization of the cloud cover, turbulence and absorption in preparation of the deployement of an Optical Ground Station for space-to-ground optical communications.

KSAT twitter

KSAT takes the first step into Free Space Optical Communications

References & Partners

Federal Agency for Cartography and Geodesy (BKG)
Fraunhofer CAP
PlaneWave Instruments