SABHASAT Spacecraft - Nanosats Database

Spacecraft name	SABHASAT
Type	CubeSat
Units or mass	3U
Status	not launched, expected in 2026
Launcher	not launched
Organization	Nebula Space Organisation
Institution	Company
Entity type	Commercial
Nation	India
Oneliner	India's first Gamma- Ray burst detection CubeSat.
Description	We are the first space-tech startup to research gamma-ray burst transients and detect them using a CubeSat, becoming the first from India to do so. This research presents Sabhasat, a pioneering 3U CubeSat designed to detect solar and gamma radiations in the LEO region, positioned over 650 km above Earth's atmosphere. Utilizing advanced sensor technologies, Sabhasat aims to enhance our understanding of space radiation and its potential impact on satellite systems. The project's objective is to develop a 3U CubeSat nanosatellite for studying solar and gamma radiations in the Lower Earth Orbit, specifically 600 km above Earth's surface. The satellite incorporates an Active Attitude Control System (AACS), Distributed Command and Data Handling (dCDH), Communications (COMM) systems, Electronic Power System (EPS), and Peak Power Tracker (PPT). Upon successful launch, Sabhasat will be India's first indigenous CubeSat capable of detecting high-energy radiations in orbit. The basic SABHASAT philosophy is to realize innovative, distributed and modular instruments composed of tens/hundreds of simple units, cheaper and with a limited development time. The present nanosatellite (e.g. CubeSats) technologies demonstrate that off-the-shelf components for space use can offer solid readiness at a limited cost. For scientific applications, the physical dimension of a single detector should be compatible with the nanosatellite structure (e.g. 1U CubeSat of 10 × 10 × 10 cm3 ). Therefore, the single detector is of course underperforming (i.e. it has a low effective area), when compared with conventional operative transient monitors, but the lower costs and the distributed concept of the instrument demonstrate that is feasible to build an innovative instrument with unprecedented sensitivity. A possible solution for the payload is allocated in 1U Cubesat (10 × 10 × 10 cm3 ). A mechanical support is placed on the instrument’s topside. The support is composed of two parts to accommodate an optical/thermal filter in the middle. The electronic boards for the back end and the Data Handling unit are allocated at the bottom of the payload unit. The detector core is located in the middle: this is a scintillator-based detector in which Silicon Drift Detectors are used to both detect soft X-rays (by direct absorption in silicon) and to read out the scintillation light simultaneously.
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Photo sources	[1]

Last modified: 2025-12-21