The attitude control system of the satellite for earth observation 'Bhaskara'

Goel, P. S. ; Nagabushanam, S. ; Murugesan, S. ; Patnaik, M. M. M. (1982) The attitude control system of the satellite for earth observation 'Bhaskara' Sadhana (Academy Proceedings in Engineering Sciences), 5 (1). pp. 1-27. ISSN 0256-2499

Full text not available from this repository.

Official URL:

Related URL:


The satellite for earth observation (Bhaskara) launched on 7 June 1979 has two TV cameras and a passive microwave radiometer for earth resources survey and meteorological studies respectively. As it had to be a minimally modified version of the earlier spin-stabilised satellite Aryabhata, it is configured as a spin-stabilised satellite, with a spin rate of between 6 to 11 rev/min and a spin axis perpendicular to the orbital plane within 3° . The cold gas system of Aryabhata was modified to provide a low and controlled thrust for spin-up and spin-axis orientation operations. Two horizon-crossing sensors are used for automatic spin-axis control and attitude determination on ground. This paper presents a report on the system evolution, design, simulation and on-orbit performance of Bhaskara.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Horizon-Crossing Sensors; Nutation Damper; Magnetic Bias Coil; Attitude Control System; Satellite; Bhaskara
ID Code:13093
Deposited On:11 Nov 2010 04:59
Last Modified:02 Jun 2011 08:28

Repository Staff Only: item control page