LabSat

Satellite build by the Wrocław University of Science and Technology. SatRevolution S. A. provides a platform in the form of 3U CubeSat bus. The main task of the satellite will be conducting biological experiments. Launch is planned for December 2020 on SpaceX Falcon 9 rocket.
ico-amicalsat-01

CubeSat based science mission

ico-swiatowid-02

Biological science mission to determine the survival of microorganisms in extreme conditions

ico-amicalsat-03

Science joint project with Wrocław University of Science and Technology

For more information please visit Wrocław University of Sicence and Technology website

Subsystems

Bilogical experiment:

Biological science experiment to determine the survival of microorganisms in extreme conditions.

  • Main processor: up to 16MHz, 256kB FRAM, Ultra Low Power Modes
  • Storage memory: 8MB
  • Payload power switches: 3.3V and Battery Voltage with adjustable current limit
  • Possible payload interfaces: 2xI2C, 4xSPI, 3xUART
  • Regulated 12V power supply
  • 2 × UHF & S-band
  • Low Power Consumption: 2.8W at 30dBm RF, output power on UHF
  • 2x UHF half-duplex
  • Modulations: (G)FSK, 2(G)MSK, OOK
  • Automatic Frequency Control: +/- 25kHz
  • High receiver’s sensitivity: minimum -105dBm at 9.6kbps
  • UHF/VHF operational frequency 142 – 146 MHz, 432.5 – 438 MHz
  • Data interface: RS485 with configurable frequency, data rate up to 64kbps, modulation, RF connector (type, position, orientation – 60bit synchronization
  • Forward Error correction: Reed-Solomon ¼ with downlink protocols APRS AX.25 1.2kbps or custom binary protocol 9.6-64kbps
  • Uplink protocol: custom binary protocol 9.6kbps
  • 128/256 hardware AES encryption/decryption with time coding and digital signature coding schemes
  • Safety watchdog
  • Single PCB radio
  • Single board Telemetry, Telecommand, and Beacon capabilities
  • Supply voltage: 12 V, 3.3 V
  • UHF max RF power output: 29 dBm
  • Max current consumption at RX*: 20 mA
  • Normal current cons. at TX*: 0.117 A
  • Connectors: SMA, FX10A-168P
  • Range 400-500 km
  • Orientation accuracy: ~2 deg
  • Maximum random offset below 0,5 deg/s/axis
  • Processor: up to 100MHz
  • Storage memory: 8MB
  • Actuators: 3x Electromagnetic Coils, 3x Reaction Wheels
  • Internal Measurment Unit (IMU): Gyroscope, Magnetometr, GPS Position 2.5m CEP, Velocity 0,1m/sec, Max 50Hz rate
  • SGP4/SGD4, IGRF12, B-DOT, EKF, GS tracking algorithms available.
  • Auxiliary PowerSupply + Battery Managment System + Energy Harvesting System
  • Cooperation with up to two 3S Li-ion battery pack.
  • Support for wide range of solar panels configurations.
  • Battery supervisory circuit.
  • System redundancy, autonomous fault handling and recovery.
  • Hardware protection from excessive discharging
  • Hardware MPPT implementation
  • Support for highly depleted battery charging
  • User programable 2.5A or 4.6A maximum battery pack load current
  • Unregulated battery voltage bus, two 3.3V bus and 1.8V bus in a redundant topology
  • Configurable overcurrent protection for 1.8V bus in the range of 100mA to 600mA and for
  • 3V bus in the range of 100mA to 2A with a soft-start for cooperation with sensitive loads
  • Programmable level of overvoltage and undervoltage thresholds
  • I2C communication for diagnostic purposes
  • Battery pack consists of 3 batteries (max 4,2V each and 3200mAh) connected in series
  • Voltage at fully charge is 12,6V and 35Wh
  • 3U Structure
  • CNC manufactured of Aluminium 7075 alloy
  • Hard anodized and oxidized

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