Below given is the link for the video on “Making of swayam” followed by the technical specifications of swayam.
https://www.youtube.com/watch?v=JtiAAnn0J98
COEP student satellite - SWAYAM
Technical specifications
Size: 1U standard = 100 mm x 100mm x 113.5 mm
Mass: 990 grams (Picosatellite)
Mission objectives
- Technological demonstration of passive attitude control system. One magnet for orienting satellite in earth magnetic field direction and two pairs of hysteresis rods for damping velocities in other two axes are used.
- Point to point messaging services to HAM community.
- UHF (Ultra high frequency) channel performance evaluation.
Orbit: Polar sun-synchronous Low Earth Orbit (500 km – 550 km above earth’s surface)
Launch:To be launched by ISRO’s polar satellite launch vehicle C-34 (PSLV C-34) on 22nd June at 9:25 am IST from SHAR, Sriharikota.
Mission Life: 1 year
Subsystems of Swayam
- Attitude Control Subsystem – Responsible for detumbling/stabilisation of satellite and to point the antenna towards the earth. Magnet and hysteresis rods used.
- Power system – Solar energy (solar panels on all 6 faces of the satellite) used to power up all electrical systems and to charge Li-ion battery which will be used to power up in eclipse phase.
- Communication system – Half duplex communication system in HAM band frequency at 437.025 MHz. Autonomous analog beacon transmitted by satellite every 90 seconds for crucial parameters.
- On board computer – Responsible for sensor interface, data handling, storage and implementing custom network layer protocol.
- – Responsible for maintaining temperatures inside the satellite, to sustain vibrations of launch vehicle and holding all the components rigidly , providing surfaces for mounting of Solarcells.
Receiving signal from Swayam
COEP has established functional ground station at the top of metallurgy department. After launch, antenna deployment will take place after 45 min, then it will take a maximum of 15 days for the satellite to stabilise after which reliable communication link will be established between Swayam and ground station. Analog beacon can be sent and received by any HAM community person. Hardware and software for digital communication has been distributed to many places in India as well as across globe including Spain, Germany and Russia, those ground stations or laboratories will be able to communicate trough SWAYAM and track SWAYAM.
Team
It is an interdisciplinary project having students from all the departments of engineering. It has undergraduate students from all the years i.e. from first year to forth year. Every year there are around 40-45 students in the team.
Timeline
- Late 2008: Project initiated by a group of students
- Jan 2009: Project approved by the college
- Jan 2010: Conceptual Design Review at ISAC
- Oct 2012: Ground Station established
- March 2013: Preliminary Design Review at ISAC
- May 2013: COEP signs an MoU with ISRO
- May 2014: Environmental tests successfully completed on the Qualification model of Swayam.
- Sept 2014: Critical Design Review (CDR) cleared at ISAC
- Jan-Feb 2015: FM assembly and Environmental tests (Hot and cold, vibration and thermos-vacuum test)completed at ISAC. Satellite handed over to ISRO.
- Every three months health and functionality of satellite checked
- May 2016 : Pre-shipment review cleared
- June 2016 : Satellite shipped to SHAR. All functionality checked and integrated with launch vehicle.
- June 22, 2016 : Launch at 9.25AM IST