Technical Report (Old) http://hdl.handle.net/2248/5532 2026-04-17T04:13:52Z Solid state coelostat drive system for a telescope http://hdl.handle.net/2248/5537 Solid state coelostat drive system for a telescope Srinivasan, R; Singh, J; Ramamoorthy, K. S Open Access 1989-07-01T00:00:00Z Improving the image quality at the calcium K and hydrozen spectroheliographs at the Kodaikanal Observatory http://hdl.handle.net/2248/5536 Improving the image quality at the calcium K and hydrozen spectroheliographs at the Kodaikanal Observatory Singh, J; Aleem, P. S. M; Nagabhushana, B. S Open Access 1988-01-01T00:00:00Z Fabrication of diaphragm plates with optically flat and reflecting surfaces http://hdl.handle.net/2248/5535 Fabrication of diaphragm plates with optically flat and reflecting surfaces Saxena, A. K; Samson, J. P. A Open Access 1987-12-01T00:00:00Z