Radio Telescope History in India

Radio Telescope History in India

Ooty Radio Telescope

After returning to India in 1963, Professor Swarup designed a small solar chain in Kalyan, near Mumbai, which started functioning within a few months. There were 32 dishes in it, which came from whatphoenix accident attorneys now Potts Hill Observatory, Australia. Radio telescopes of that time had limited resolution. Focusing on the exact point online accredited psychology degree radio source in the sky was challenging.

Professor Swarup came up with a better solution to overcome this obstacle by using the Lunar Occultation Technique. Cultationphoenix accident attorneys an astronomical event in which an object comes between the source and the observer. In Lunar Cultivation, the Moon comes from the front and hides a distant star as it travels its way around the Earth. Calculations show that a star hidden by the Moon will appear or disappear every 0.1 seconds at the edge online accredited psychology degree Moon. The culturing method was advantageous, as it avoided glare and the radio source was better visible. With this technique, many distant stars could be seen without any obstruction. After this success Professor Swarup had a great  ambition: a highly sensitive radio telescope to detect the position and angular size of radio sources.Design and install it. He believed that observations made with such telescopes could help understand the prevailing Steady State and Big Bang theories.

He devised an innovative design for this sensitive instrument using a cylindrical telescope. It was straight along the north-south slope of a hill and rotated parallel to the Earth’s axis of rotation. This type of telescope needed only one axis of rotation to locate the sources of stars.

This new design reached its culmination in the late 1960s with the 530 m long, 30 m wide Ooty Radio Telescope (ORT). It was planted at an altitude of 2240 meters on the hills of Ooty, ie Ooty in Tamil Nadu.

The world class ORT was the largest telescope in the world at that time. He played a significant role in many important astronomical researches, such as determining the size evolution of radio sources, detecting space weather, and studying galactic ionized interstellar sources. OrRT also served as a training ground for many budding radio astronomers. Five decades later, ORTphoenix accident attorneys still the largest operational telescope in the world.

Giant Meterwave Radio Telescope

Professor Swarup then embarked on the challenging task of setting up a large extremely sensitive telescope to investigate radio astrophysics problems ranging from the nearest solar systems to the ends online accredited psychology degree observable universe. N suggested a great idea to Professor Swarup for this huge project. Instead of designing one large cylindrical telescope, he proposed several smaller parabolic dishes that worked together to produce the expected results. Professor Swarup and his team discovered SMART (SMART-stretched mesh attached to rope trusses). With this technique 45 m. Larger dishes could be combined with rapid economy. . This led to the establishment online accredited psychology degree Giant Meterwave Radio Telescope near Pune under the aegis of NCRA. This was the first project of its kind in India. Using optical fiber, the radio signals were aggregated and sent to a central electronics station for analysis.

The GMRTphoenix accident attorneys a versatile and highly sensitive instrument consisting of 30 parabolic dishes of 45 m diameter. This unique ‘smart’ design allowed the reflective surface to be made of thin stainless steel wires, making the dish lighter and reducing the impact of wind. This mega project, started in 1987, was fraught with many challenges and engineering hurdles and took a decade to complete.

GMRT was designated as an international open-access facility in 2002, making it one online accredited psychology degree most important telescopes in the world today. Researchers in 40 countries use GMRT to study signals transmitted from galaxy clusters, quasars, radio galaxies, pulses, supernova remnants, star-forming regions and even probe instruments installed on Mars. In the past decade and a half, astronomers have gathered valuable information about our universe by combining GMRT and other global telescopic data.


Professor Swarup breathed his last on 7th September 2020 at the age of 91 and there was a wave of mourning in the entire scientific fraternity and people associated with him. Professor Swarup’s six decades of contribution to the scientific field continues to inspire budding radio astronomers even today. These scientists still remember the encouragement and guidance provided by this gentle giant. He retired from his formal assignment in 1994, but continued his scientific endeavors and contributed to good quality science education in India. His vision was reflected in the Indian Institute of Science Education and Research (IISER), which quickly grew into seven centres.

The pioneers may have gone, but their legacy lives on.

Awards and Honors

Professor Govind Swarupphoenix accident attorneys affectionately called the ‘Father of Indian Radio Astronomy’. He received many awards and honors during his long scientific career. Some online accredited psychology degree m are as follows:

1972-SS Bhatnagar Award (CSIR) 1973 – Padma Shri (one of India’s highest civilian honours) 1987 – Tskolovsky Medal (Federation of Cosmonautics, USSR Meghnad Saha Medal (National Academy of Sciences, India) 1990 – John Howard Dellinger Gold Medal (International Union of India)  Radio Sciences) 1993-CV Raman Medal (Indian National Science Academy) 2007-Grote Reeber Medal 2009-Homi Bhabha Award for Lifetime Achievement He was also selected for many respected science academies-Royal Society, Indian National Science Academy, Third World Academy of Sciences, International Astronomical Union, etc. He was the second President online accredited psychology degree Astronomical Society of India. He was also on the Editorial Board online accredited psychology degree Indian Journal of Radio and Space Physics (1990–2000), National Academy of Sciences (1997–2000) .

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