Consider the following pairs: 1. CREST | Hosakote 2. Solar Observatory | Kodaikanal 3. Radio Observatory | Gauribidanur How many of the above pairs are correctly matched?

CREST

• Situated 35 km to the northeast of Bangalore, near Hosakote town, is the Centre for Research and Education in Science and Technology (CREST), a 40-acre campus of IIA (Indian Institute of Astrophysics).
• The campus houses the control room for the remote operations of the 2m Himalayan Chandra Telescope (HCT) at the Indian Astronomical Observatory (IAO), Hanle.

Kodaikanal Solar Observatory

• The Kodaikanal Solar Observatory is a solar observatory owned and operated by the Indian Institute of Astrophysics. It is on the southern tip of the Palani Hills 4 kilometres (2.5 mi) from Kodaikanal (Tamil Naidu).
• The Evershed effect was first detected at this observatory in January 1909.
• Solar data collected by the lab is the oldest continuous series of its kind in India. Precise observations of the equatorial electrojet are made here due to the unique geography of Kodaikanal.

Gauribidanur Radio Observatory

• The Gauribidanur Radio Observatory is a radio telescope observatory located at Gauribidanur, near Bengaluru. It is operated jointly by Raman Research Institute and the Indian Institute of Astrophysics. The observatory has been in operation since 1976.
• The Gauribidanur Observatory has a 6-meter radio telescope, a radio heliograph, a high resolution radio spectrograph and a gravitational laboratory.