Ground Segment Software Release

The Ground Segment Software specifically developed for PicSat is finally released!

Here are some of its features:

  • Pure-python (compatible 2.7 and 3.5)
  • OS-independent (ran on windows, Linux and raspberry PI)
  • Remote-controlling enabled (through ssh)
  • TeleCommand and TeleMetries APIs (Application Programming Interfaces) for scripting commands
  • Data-frames based on CCSDS standard, packing/unpacking fully parameterizable to meet specific needs
  • Real-time storage of unpacked frames in database (up to ~1 Mbytes/sec), and on disk
  • Cryptographic signature to secure TCs
  • AX25-KISS aware
  • Antenna listening & writing from-to any port (serial, usb, tcp/ip, etc)
  • Possibility of interfacing third-party applications for additional real-time visualization and tweaks

It is released under the GPL Licence, see www.nanosat-control.com for details.

News from the secondary mirror

Sorry for the recent lack of news. We were busy: after all the stress tests, the secondary mirror gave signs of cracking. We had to expertise it, and understand where it was coming from.

Conclusion, we have now a brand new coating: Silver (we are rich). Thanks to Optics Fichou for saving us!

Here is new version of M2, next to the old. Next task is the integration of the telescope into the flight model.

By the way, we have a cool new picture of the satellite (the payload is not yet inside):

Deployment successful!

To provide the required 5W of electrical power, the PicSat satellite encompass 2 deployable solar panels of 2U length each. It gives a total of 50cmx10cm of surface exposed to the Sun.

Because the solar panels deploy on two opposite sides (for redundancy), the VHF/UHF antennas deploy on the other two faces. They are on opposite edges to maximise transmission, and decrease the risk of interference.

Here is how the satellite looks, once fully deployed

Flight model update

Some news on PicSat !

We just receive the mechanical parts of the Payload, the next step is the coating to avoid lights reflection inside the telescope.
The avionics is also now integrated in the structure with body mounted solar panels, assembly of the deployables ones will occur soon !