The trials will be carried out for different ranges, including the maximum range of 4 km, in the next few days for image quality and tracking

Seeker evaluation trials for the anti-tank Nag missile were carried out in hot desert conditions in Rajasthan on Monday.

According to Defence Research and Development Organisation (DRDO) sources, the trials to evaluate the performance of an improved version of Imaging Infrared (IIR) seeker were carried out against both moving and static targets for different ranges of 2.8 km and 3.2 km. While Nag missile has a maximum range of 4 km, the seeker proved to be accurate only up to 2.5 km in extremely hot conditions in the trials conducted last year.

With the Army seeking improvement, scientists at the Research Centre Imarat (RCI), a key DRDO laboratory, had indigenously developed an improved version of IIR seeker based on detector. An IIR seeker detects objects based on temperature contrast.

With the temperature difference being minimal in hot summer between a tank and sands in the desert, the scientists developed an improved seeker with better resolution to distinguish even minute temperature differences while detecting the objects, the sources added.

The sources told The Hindu that no missiles were fired in the seeker evaluation trials.

The trials for 2.8 km range were successful to a large extent as the seeker tracked both the moving and static targets, the sources added while declining to reveal further details on its performance in tracking targets 3.2 km away.

The trials would be carried out for different ranges, including the maximum range of 4 km, in the next few days for image quality and tracking.

Meanwhile, DRDO scientists are planning to carry out Nag missile test with a more rugged version of NAMICA, the missile carrier. The launcher had been hardened further to withstand missile firing loads. Its sealing also has been improved.