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S-Net

S-Net – S-Band Network for Cooperative Nanosatellites
Point of Contact
Dr.-Ing. Zizung Yoon [1]

News

  • 2019.05.09: More results on IAA SSEO [2]. 
  • 2019.02.01: One year in orbit. All satellites in best state! Relative distances  [3]great!
  • 2018.10.02: Flight results on IAC Bremen [4].
  • S-Band down- and uplink successful. 
  • Info for radio amateur: Mike Rupprecht [5]
  • 2018.02.22: Intersatellite communication successful.
  • 2018.02.19: SLink has been activated. S-band downlink is next step.
  • 2018.02.07: TLEs: 43186, 43187, 43188, 43189. Relative distance stable.
  • 2018.02.01: Ground contact w. all four S-NET was established. 
  • 2018.02.01: Successful launch of four S-NET satellites with Soyuz/Fregat.

The Mission

The objective of the S-Net mission is to investigate and demonstrate the inter-satellite communication technology within a distributed an autonomously operating nanosatellite network. As space born systems have become an essential element in facing global challenges such as climate change, disaster management and maritime systems monitoring, rapid response and low cost systems are in high demand.

A key technology to increase the operational efficiency of distributed satellite systems via formations or even autonomous swarms is the miniaturizing of intersatellite communication technology. In cooperation with IQ wireless GmbH, TU Berlin developed an S-band transceiver (SLink) [7] with 100 kbps crosslink and 1 Mbps downlink capability suitable for accommodation in nanosatellites.

S-NET
Parameter
Value
Mission Objectives
S-band inter satellite communication with nanosatellites
Satellite number
4 (Norad ID: 43186-43189)
Orbit Height
580 km SSO
Launch Date
2018.02.01 02:07 UTC
Design Lifetime
1 year
Mass
8.72 kg 
Volume
240 x 240 x 240 mm³
Communication
UHF (TM/TC), S-band (UL/DL/ISL experiment)
Attitude Control
3-axis control w. MEMS sensors, magnetorquers and reaction wheels
Payload
S-band transceiver (SLINK) for ISL and up/downlink Laser reflector for high precision measurement

Videos

Short docu about mission TV1:

The mission (image video):

Encapsulation of Fregat upper stage at cosmodrome Vostochny:

Report (successful launch and first contact):

Publications

Order by: Author [8]  Year [9]  Journal [10]

Frese, Walter and Yoon, Zizung and Briess, Klaus (2019). S-Net first year in orbit: verification of a nanosatellite network in s band [11]. 12th IAA Symposium on small satellites for Earth observation

Frese, Walter and Yoon, Zizung and Briess, Klaus (2018). communication network in LEO: in-orbit verification of intersatellite link by nanosatellite cluster S-Net [12]. Proceedings of the International Astronautical Congress (IAC)

Binder, Matthias and Yoon, Zizung and Briess, Klaus (2017). Attitude Determination with Failure Tolerant Sensor Arrays Suitable for Nanosatellites [13]. 11th IAA Symposium on Small Satellites for Earth Observation

Frese, Walter; Briess, Klaus; Yoon, Zizung; Voigt, Siegfried (2017). Inter-satellite Communication with Nanosatellites using Adaptive Coding and Modulation [14]. 5. Nationale Konferenz "Satellitenkommunikation in Deutschland"

Barschke, Merlin F. and Brieß, Klaus (2017). Nanosatellite development at Technische Universität Berlin: Current status and perspective [15]. presentation at the 66th German Aerospace Congress

Kirchner, Georg; Grunwaldt, Ludwig; Neubert, Reinhard; Koidl, Franz; Barschke, Merlin; Yoon, Zizung and Fiedler, Hauke (2013). Laser ranging to nano-satellites in LEO orbits: Plans, issues, simulations [16]. Proceedings of the 18th International Workshop on Laser Ranging

Barschke, Merlin F.; Yoon, Zizung and Brieß, Klaus (2013). TUBiX - The TU Berlin innovative next generation nanosatellite bus [17]. presented at the 64th International Astronautical Congress

Yoon, Zizung and Frese, Walter and Bukmaier, Alexander and Briess, Klaus (2013). System Design of an S-Band Network of Distributed Nanosatellites [18]. CEAS Space Journal. Springer.

Barschke, Merlin F.; Yoon, Zizung; Baumann, Frank; Roemer, Stephan and Brieß, Klaus (2013). Nanosatellite activities at TU Berlin [19]. Proceedings of the 2nd IAA Conference on University Satellites Missions, 69-76.

Yoon, Zizung and Frese, Walter and Bukmaier, Alexander and Briess, Klaus (2013). Mission Design of a S-Band Network of Cooperative Nanosatellites [20]. International Workshop on Spacecraft Constellation and Formation Flight

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Press releases

  • Ingenieurskunst aus Berlin-Charlottenburg im All (01.02.2018) [mehr...] [21]
  • DeSK cooperates with TU Berlin (11.10.2014) [more...] [22]
  • Fast communication in space (15. Okt. 2012) [more...] [23]

Fachgebietsleitung

Prof. Dr.-Ing. Enrico Stoll
 Tel. +49 30 314-21339
Room F 515
sekretariat@rft.tu-berlin.de [24]

Grant No.:

50 YB 1225

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