Pawan Kumar
ISRO Successfully Launches Three Small Satellites Into Earth’s Orbit
EOS, Janus-1, and AzaadiSAT-2 were three satellites that the Indian Space Research Organization (ISRO) launched on a Small Satellite Launch Vehicle (SSLV D2) from the Satish Dhawan Space Center in Sriharikota on Friday.
The satellites are in a 450-KM-diameter circular orbit.
“The SSLV-D2/EOS-07 mission has been successfully completed. EOS-07, Janus-1, and AzaadiSAT-2 were all delivered into their intended orbits by SSLV-D2, “ISRO stated, as cited by a news source.
ISRO created this brand-new unique vehicle to seize the growing tiny and microsatellite commercial sector. EOS-07 is a 156.3 kg satellite that ISRO developed on its own. However, the 8.7 kg satellite AzaadiSAT-2 was created in collaboration by about 750 female students from all over India under the direction of Chennai-based Space Kidz India.
Dr. K Sivan expressed his gratitude to each of the three teams that worked to launch the satellites into space. He offered his congratulations while recalling the SSLV D1 launch incident.
“To guarantee that the vehicle is successful this time, we assessed the issues encountered in SSLV-D1, identified corrective steps, and performed them at a very quick pace,” the ISRO Chief added.
How did the SSLV D1 mission before it fail?
India’s leading space exploration organisation failed to position the satellites on board in the proper orbit during the SSLV D1 launch in August of last year. The velocity wasn’t great enough, thus those satellites were put into excessively elliptical orbits. Soon after, the satellite’s orbit began to deteriorate, rendering it useless.
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The final step of the entire process was where the error had happened. ISRO had looked at this incident after it happened. According to ISRO’s failure report, vibrations during the second stage of separation surpassed the desired frequency and time length compared to what was predicted given ground-test values.
These vibrations were detected by the six accelerators on board the unique satellite vehicle, which then activated the “salvage mission mode.” The vehicle’s altitude during the mission is adjusted by the accelerators by reading the vibrations. A failure logic included into the SSLV’s programming is activated when there is a significant discrepancy between the readings from various accelerators. This is precisely what occurred during the two-second launch window, when the accelerators believed that all of the satellites were malfunctioning.
The satellites were ultimately determined to be in great working order, but because they could not be put in the proper orbit, the data from them could not be used for the remainder of the mission.
