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AOBA VELOX-IV
AOBA VELOX-IV was launched on Friday, January 18 at around 8.50 am from the Japan Aerospace Exploration Agency Epsilon-4 rocket.
AOBA VELOX-IV (AV4) is a low-cost 2U CubeSat which is developed in collaboration between Nanyang Technological University, Singapore and Kyushu Institute of Technology, Japan. The main objective of this mission is technological demonstration of taking earth glow images in LEO by using low-light camera and pulsed plasma thruster (PPT) towards observation of the lunar horizon glow in future moon mission.
Technical Fact
| | Description |
|---|---|
| Transceiver | GOMSpace NanoCom AX100 |
| Mode | Half-Duplex |
| Frequency | 437.225 MHz |
| Baud | 4800 |
| Modulation | FSK/MSK/GFSK/GMSK |
| Protocol | CSP/KISS/GOSH/AX.25 |
| TLE | AOBA VELOX-IV[ID:43940] 1 43940U 19003J 19027.81518091 .00001519 00000-0 66580-4 0 9990 2 43940 97.2966 89.8217 0024033 208.9777 243.5479 15.23269137 1484 |
| Beacon | NIL |
| Ground Station | GOMSpace NanoCom GS100 https://gomspace.com/shop/subsystems/communication-(1)/nanocom-gs100.aspx |
| Email Contact | [email protected] |
| Subsystems | Description |
|---|---|
| Size | 112 mm x 112 mm x 227 mm (stowed) 474 mm x 112 mm x 227mm (deployed) |
| Orbit | Sun-synchronous 500-km orbit |
| Mass | 2850 grams |
| Lifespan | 12 months in LEO |
| ADCS | 3-axis gyroscope, 02 fine sun sensors with 1200 FOV 06 coarse sun sensors, 03 reaction wheels 01 pulsed plasma thruster |
| OBDH | On-board computer with 2Gb storage UART and I2C data interfaces |
| TT&C | UHF half duplex 9600bps GMSK downlink/uplink, dipole antenna |
| EPS | 2 deployable and 2 body mounted solar panels Power: 18W peak BOL 5.8 Ah Li-Ion battery at 7.2 V nominal |
| Structure | Al. 7075 chassis with stainless steel load bearing parts |
| Payload | C329BW low-light camera |
PPT's Specification
| Parameters | Specifications |
|---|---|
| Energy storage unit | 3µF/1200 |
| Firing frequency, fr | 1 Hz |
| Input power, Pin | 2.16 W |
| Mechanism | Breech-fed |
| Size | 97.5 x 97.5 x 70.0 mm |
| Impulse bit, Ibit | 25.203 µNs |
| Mass bit, mbit | 3.8 µg |
| Specific impulse, Isp | 676 s |
| Exhaust velocity, ve | 6.632 km/s |
Camera Specification
| Parameters | Specification |
|---|---|
| Camera model | C329BW |
| Resolution | 640x480 |
| Sensor Type | 1/4" OmniVision VGA sensor |
| Sensitivity | 3.8 V/lux-sec |
| Power Consumption | 264mW |
| Interface | UART |
| Sensor S/N Ratio | 50 dB |
