# Global performance and capabilities of the instruments on the 3.6-m Devasthal Optical Telescope

## TL;DR

This paper evaluates the performance of the 3.6-m Devasthal Optical Telescope and its instruments, demonstrating its capabilities for high-sensitivity astronomical observations and its significance in multi-wavelength astronomy.

## Contribution

It provides a comprehensive assessment of the telescope's instruments and performance, highlighting its scientific potential and operational readiness.

## Key findings

- Performance matches expectations for the site
- Instruments enable high-sensitivity observations
- Opens opportunities for multi-wavelength studies

## Abstract

The recently commissioned 3.6-m Devasthal optical telescope has been used for various tests and science observations using three main instruments, namely, a charge-coupled device camera, a near-infrared camera, and an optical imager-cum-spectrograph. The published results from these instruments assert that the performance of the telescope at the Devasthal site is at par with the expectations. These back-end instruments open up vast opportunities for high-sensitivity observations of the celestial sky with the telescope. This paper provides a summary of the existing back-end instruments and attempts to highlight the importance of the Devasthal optical telescope in synergy with other telescopes operating at different wavelengths.