Summary of PW-Sat project – the first Polish satellite

One year ago – on October 28, 2014 our previous satellite PW-Sat deorbited and burned in the upper layers of Earth’s atmosphere. It went to space in February 2012 and was supposed to open its 1 meter long deorbit tail. Unfortunately, we lost communication and we were unable to open the tail. We encourage you to read a story of our previous project – PW-Sat – on our University’s blog. Just click the image below.

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Our representation at International Astronautical Congress 2015

Przedstawiciele PW-Sata2 na IAC 2015. Od lewej Inna Uwarowa - koordynator projektu, Ewelina Ryszawa - lider zespołu DT, Artur Łukasik - wicekoordynator projektu.

Representation of PW-Sat2 at IAC 2015
From left – Inna Uwarowa, Project Coordinator, Ewelina Ryszawa, Deployment Team leader, Artur Łukasik, Project vice coordinator

Jerusalem is hosting one of the most important events … the International Astronautical Congress IAC 2015. Among numerous lectures and presentations there are two ones important for us, the PW-Sat2 team.

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We are looking for 250 000 euro for PW-Sat2 space launch

PW-Sat2 z otwartymi panelami słonecznymi. Autor renderu: Marcin Świetlik

PW-Sat2 with solar panels open. Author: Marcin Świetlik

Our project – PW-Sat2 – has come a long way since 2013 when the work started and we created our initial assumptions. When we look at our ideas from the beginnings of 2013 we smile at how amitious plan we had for PW-Sat2. Lately, we have finished the design phase and finished tweaking the technical documentation and now it is time to start testing the satellite. Of course, we have performed various smaller tests previously. However, what is ahead of us is much more complicated. We are just past the midpoint of our work and it is a good time to find the funds needed for the start. We need approximately €250 000.

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Our PW-Sat2 in 3D

We’ve achieved some secondary promotional tasks recently. One of them is a simplified 3D model of our satellite. Actually, it is the vision of PW-Sat2 from the beginning of 2015, that has changed a bit since then, but even though it shows the overall concept of our CubeSat. We resigned from unnecessary solar cells on the bottom of the arrays and the shape of Sun Sensor changed significantly.  The author of this model is Marcin Świetlik, the same who made pictures of our sattelite for the press kit. More news soon :)

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Last weeks summary at PW-Sat2 project

Phase B is nearly finished and all teams are working very hard in order to meet the deadlines. But thanks to this, we estimate that the actual phase will be finished at the end of March.

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3D printed model of PW-Sat2’s structural elements. Huge thanks to Rapid Crafting for their help!

The progress is proceeding smoothly forward. Many teams have already finished their work and started writing the documentation. Few others are still in the middle of their work – unfortunately, this is the nature of the sequence of the project progress. Nonetheless, the most important achievements of this phase are:

  • Design of new shape of the pin and solar panels hinges
  • During most recent tests we managed to fold the sail – of an area equal to 4m2 – to the diameter of 90mm!
  • Design of the Sun sensor prototype and its test stand
  • Design of the electric power system (EPS) and on-board computer (OBC) – software is still under development
  • We managed to register the radio wave frequency which we will use to communicate with PW-Sat2!
  • New satellite structure design was created due to the constantly changing requirements of other components. It is the main reason why configuration team is still struggling with its tasks
  • Also new thermal model was prepared together with the first analysis – the risk is quite low, but unfortunately not for all possible cases!
  • Additionally, a statistical analysis of the sail influence over time of deorbitation was conducted – we have high hopes :)

We have already in plans further tests and development of the already existing designes and prototypes, although they are estimated for phase C.

Additionally, PW-Sat2 team is very active in media and educational field. During last few months we were invited to the Radio ‘Czwórka’, Radio ‘Kampus’ and ‘Radio dla Ciebie’. There were also few articles about the project in mainsteam newspaper. We also organized few lectures for middle school, high school and even university. Thanks to the mentioned activities, the number of team members increased twice (!) and we obtained support of many private companies!

See you at the end of phase B!