# \[Announcement\] Space Station OS v0.8.3 Released – ECLSS Integration, GNC Parameterization, and Sensor Updates

**URL:** <https://discourse.openrobotics.org/t/announcement-space-station-os-v0-8-3-released-eclss-integration-gnc-parameterization-and-sensor-updates/44457>\
**Category:** Projects\
**Tags:** release, ros2, gazebo, space-robotics, space-ros\
**Created:** [June 26, 2025, 12:04am UTC](https://discourse.openrobotics.org/t/announcement-space-station-os-v0-8-3-released-eclss-integration-gnc-parameterization-and-sensor-updates/44457 "2025-06-26T00:04:37Z")\
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**Author:** ![yuyuqq](https://sea2.discourse-cdn.com/flex022/user_avatar/discourse.openrobotics.org/yuyuqq/32/18149_2.png) [@yuyuqq](https://discourse.openrobotics.org/u/yuyuqq)\
**Post date:** [June 26, 2025, 12:04am UTC](https://discourse.openrobotics.org/t/announcement-space-station-os-v0-8-3-released-eclss-integration-gnc-parameterization-and-sensor-updates/44457/1 "2025-06-26T00:04:38Z")

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# Space Station OS v0.8.3 Released – ECLSS Integration, GNC Parameterization, and Sensor Updates

We are pleased to announce the release of **Space Station OS v0.8.3** , featuring the first integrated version of the Environmental Control and Life Support System (ECLSS), along with important updates to the guidance and control (GNC) and sensor subsystems.

Release Notes:

> **[Release v0.8.3 – ECLSS Integration, GNC Parameterization and Sensor Updates ·...](https://github.com/space-station-os/space_station_os/releases/tag/v0.8.3)**
>
> Highlights of v0.8.3
> This release introduces the first integrated version of the Environmental Control and Life Support System (ECLSS), along with critical updates to the guidance and control (GNC)...

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## Highlights of v0.8.3

- **ECLSS Integration** :  
Core components such as air revitalization and water loop modeling are now included in the SSOS simulation.

- **GNC Parameterization** :  
CMG and thruster configurations have been parameterized for greater flexibility and reusability.

- **Sensor Updates** :  
Improved IMU simulation, including configurable bias and noise parameters, lays the foundation for future estimation modules.

- **Preliminary CMG Unloading Framework** :  
Core structure introduced for CMG unloading logic (currently under active development).

These updates enhance the realism, modularity, and extensibility of SSOS across multiple subsystems.

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## System Overview

This version also includes early-stage integration of the following subsystems and control mechanisms:

- **Environmental Control and Life Support System (ECLSS)**  
Simulates human metabolic processes including oxygen generation, CO₂ scrubbing, and water recycling.

- **Thermal Control System (TCS) (in progress)**  
Designed to manage internal heat via dynamic coolant loops, ammonia-based external loops, and radiator logic (with heater safeguards).

- **Space Station Control System (in progress)**  
Enables full 6-DOF control and real-time teleoperation via keyboard inputs, built entirely in ROS 2 and simulated in Gazebo Harmonic.

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## ECLSS System Details

The ECLSS module simulates key life support functionality by modeling:

- **Oxygen generation and carbon dioxide removal** , with closed-loop gas balance,
- **Water recycling** , including phase-change modeling and humidity control,
- **Resource budgeting and system alerts** for life-critical thresholds,
- Integration with sensor data to reflect real-time changes in environmental conditions.

This implementation mirrors subsystems used on the ISS and lays the foundation for autonomous fault detection and long-duration habitat modeling. Future updates aim to incorporate power consumption, crew metabolic models, and contingency protocols.

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## Operational Demo: How It Works

This version takes architectural and visual inspiration from the HAVEN-1 space station by Vast.

- A. **ECLSS** manages O₂, CO₂, and H₂O levels, simulating closed-loop atmospheric control.
- B. **TCS** circulates coolant internally, then rejects excess heat through ammonia-based external loops and rotating radiator panels (represented visually as solar arrays).
- C. **Teleoperation** uses keyboard inputs to send commands to spacecraft thrusters or CMGs, based on interfaces inspired by the `space-ros` demo from David Dorf.

These systems are currently running in full simulation mode with console-based logs. The next step is Hardware-in-the-Loop (HITL) testing.

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## Repository and Participation

GitHub Repository:

> **[GitHub - space-station-os/space\_station\_os: Space Station OS. A future where anyone can...](https://github.com/space-station-os/space_station_os)**
>
> Space Station OS. A future where anyone can develop space stations.

If you are passionate about robotic autonomy, space systems, or simulation-first design, we welcome your contributions and feedback.

 ![ECLSS UI Preview](https://us1.discourse-cdn.com/flex022/uploads/ros/original/3X/a/b/ab2cb42e4cc9e40573adeb9137941db5fa486855.png)

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**#ros2 #SpaceStationOS #ECLSS #ATCS #GNC #imu #simulation #OpenSource #HITL #GazeboHarmonic #robotics**