Exseed Sat 2 / AISAT The first private satellite from Indian soil.
An APRS digipeater for AMSAT India — and the first commercial use of ISRO's PS4 fourth-stage orbital platform. Designed, built and integrated in six working days.
What we flew.
On 1 April 2019, ISRO's PSLV-C45 lifted off from Sriharikota carrying — among other satellites — AISAT, designed and built in Mumbai by Satellize for AMSAT India. AISAT changed the rules of how satellites are made, and how cheaply they can be made.
It was the world's first commercial use of ISRO's PS4 platform: the fourth stage of the PSLV, instead of becoming space debris, was re-purposed as a host satellite providing power and communications to attached payloads. AISAT did not need its own solar panels or its own antenna — both were inherited from PS4.
ISRO asked AMSAT India for an amateur-radio payload in December 2018. AMSAT India contracted Satellize on 15 January 2019. The completed flight unit was delivered to ISRO for testing on 21 January 2019 — six working days later. It passed thermo-vac, vibration, EMI/EMC and the full ISRO qualification campaign.
AISAT flies an Automatic Packet Reporting System (APRS) digipeater on 145.825 MHz — a real-time amateur-radio relay with a global footprint, useful for disaster communications and for the broader amateur community. It joined the ARISS digipeater on the International Space Station as one of the very few APRS payloads operating from orbit.
Behind it: a thesis. India was the world's leading satellite-launch destination but had almost no private space sector. AISAT, and the Exseed Electron Fund that incubated Satellize, set out to change that — and it was the first proof point.
The open record.
Verified third-party reading from the open record. Every link checked HTTP 200 at build time.
“There's a new space revolution happening in India. Exseed is driving it.”