PW-SAT – What is it and how we made it
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Transcript of PW-SAT – What is it and how we made it
PW-SAT – What is it and how we made it
Maciej UrbanowiczStudents' Space Association, Warsaw University of Technology
TS2 Satellite Technologies
PW-Sat – the beginningAt the Warsaw University of Technology
➔The beginning: 2004, 2005 (mission statement)➔Students' Space Association (Faculty of Power and Aeronautical Engineering)➔Student Space Engineering Scientific Group (Faculty of Electronics and Information Technology)
PW-Sat – the beginningAt the Warsaw University of Technology
➔Why should we build a satellite?➔ Increase prestige and reputation (the 1st satellite!)➔ Enhance education and technical knowledge➔ Build space capabilities and sustainability➔ Space promotion and advocacy (Poland is joining ESA as a full state
member!)
➔… educational project➔… technology demonstrator
PW-Sat – mission statementObjectives
PW-Sat as...
➔To test a technology developed by POLES!➔De-orbit the satellite
Objectives:
Credits: Maciej Urbanowicz
Credits: Maciej UrbanowiczTo educate students at spacecraft development and space project management to demonstrate the new type of a de-orbitation system in the CubeSat project as a technology demonstrator for the small satellite mission.
Mission statement:
➔PW-Sat selected by the Education Office of the ESA as a payload to the Vega Maiden Flight!
PW-Sat – mission statementMission(s) definition(s)
The motivation:
Credits: ESACredits: ESA
➔Increase a cross section:balloon → sail → tail
PW-Sat – mission statementMission(s) definition(s)
Concept
Credits: M. Urbanowicz
Credits: P. Sańczyk
Credits: PW-Sat
➔B (Build)➔B&B (Build & Buy)➔B (Buy)
Strategy: 3B's
➔1. The satellite successfully passed all of the tests. It has been approved to flight by the ESA.➔2. The satellite was integrated with other CubeSats in the P-POD and prepared to the flight. The satellite was integrated with the launch vehicle.➔3. The satellite was launched to space.➔4. The antennas were released and the transceiver started working in the basic mode. All subsystems are in a good condition.➔5. The satellite is fully operational, downlink and uplink* transmission work properly. It is possible to operate the satellite.➔6. The tail was deployed. The deorbitation phase has been started.➔7. The satellite has been deorbited.➔* - Currently (26th September 2012) the PW-Sat has reached 4th level and particularly 5th.
PW-Sat – design
Mission schedule and level of success (1):
PW-Sat – design
Mission schedule and level of success (2):
Phase name Time Purpose
Commissioning T+0 – T+ 30 min. Satellite separation. Separation switches turn on satellite. The OBC starts counting down T30 min.
Antenna deployment T+30 min Deployment of antenna system. The satellite starts send telemetry and receive signals from ground station.
Operational phase 1 T+30 min Satellite sends telemetry, receives data. Normal operational phase is performed.
Operational phase 2 T+1 month The tail is deployed from the payload container. Deorbiting phase is started. AP&P gathers tail's parameters. Telemetry is sent to ground station.
Deorbiting T – (~1 year) Satellite is being deorbited.
PW-Sat – design
Satellite configuration
Credits: M. Urbanowicz
➔Exploded view
PW-Sat – design
Satellite configuration
Configuration before launch and after launch (1);Credits: M. Urbanowicz
➔Configurations:➔ before launch➔ after launch (1)➔ after launch (2)➔ main mission Configuration after launch (2); (C): M. Urbanowicz
Configuration main mission; (C): M. Urbanowicz
PW-Sat – design
Payload description
➔Payload container➔Tail (length: 1.2 meter; material: stainless steel)➔Thin foils with solar cells (efficieny ~4-5%)➔Cover plate➔Lock/release mechanism➔Payload control module (on the AP&P board)
Payload; Credits: M. Urbanowicz
Payload; Credits: A. Kotarba
PW-Sat – the FM
The FM assembling
Credits: M. UrbanowiczCredits: M. Urbanowicz
PW-Sat – the FM
Credits: M. Urbanowicz
PW-Sat – last day in Poland
Delivery to ESA (ESTEC)
Credits: M. Urbanowicz
PW-Sat – delivery to ESTEC
Delivery to ESA (ESTEC)
Credits: M. UrbanowiczCredits: M. Urbanowicz
PW-Sat – pre-flight
Before integration with the P-POD
Credits: M. Urbanowicz, approved by: Robusta, Masat-1
PW-Sat – pre-flight
Integration with the P-POD
Credits: M. Urbanowicz Credits: M. Urbanowicz
PW-Sat – pre-flight
Credits: L. Varga
PW-Sat – pre-flight
Credits: L. Varga Credits: M. Urbanowicz
PW-Sat – prepared to flight
Pre-flight operations in Kourou
Credits: ESA, CSG, Arianespace, Optique Video du CSG, J.M. Guillon
PW-Sat!
PW-Sat – prepared to flight
Credits: M. Urbanowicz
PW-Sat – prepared to flight
Credits: M. Urbanowicz
Credits: M. Urbanowicz
PW-Sat – launch!
Credits: M. Urbanowicz
Credits: M. Urbanowicz
PW-Sat – after launch
Credits: M. Urbanowicz
Credits: M. Urbanowicz
This is a history!Launch
Launch
➔13.02.2012➔Launch vehicle: VEGA➔Orbit: 308x1427 km (inclination: ~69.5º)
Credits: ESA
Credits: GoogleCredits: M. Urbanowicz
PW-Sat – first signal!
Communication
➔The first signal heard during the first pass➔downlink is 145.900 MHz (BPSK 1200 bps AX25, SSB)➔uplink is 345.020 MHz (FM, AX.25)
First received signal by Polish radioamateur; Credits: Grzegorz Woźniak, CAMK
Cooperation with radioamateurs: www.pw-sat.pl/pw-sat_radio_amateur
PW-Sat
Credits: P. Sańczyk
Video
PW-Sat – after launch
Credits: M. Urbanowicz
Credits: V. Gupta
PW-Sat – after launch
Credits: M. Urbanowicz
Credits: M. Urbanowicz
PW-Sat – French Guiana
Credits: M. Urbanowicz
Credits: M. Urbanowicz
PW-Sat – French Guiana
Credits: M. Urbanowicz
Credits: M. Urbanowicz
PW-Sat
PW-Sat Team (2011)
Credits: M. Urbanowicz
➔Support:ESA's Education OfficeISIS, Clyde-Space, GomSpaceCompanies in PolandSpace Research Centre of PASPolish government
Thank you for you attention!
More information at:www.pw-sat.plwww.maciejurbanowicz.org.pl
Listen to our Beacon! (technical information at www.pw-sat.pl)
Credits: T. Szewczyk