The Ulugh Beg Observatory is an observatory in Samarkand, Uzbekistan, built in the 1420s by the Timurid astronomer Ulugh Beg. Islamic astronomers who worked at the observatory include Al-Kashi, Ali Qushji, and Ulugh Beg himself. The observatory was destroyed in 1449 and rediscovered in 1908.

Source Wikipedia

Puzzle

To find the cache, you should know that it is located:
3535 meters from the Ulugh Beg Madrasa and 4366 meters from his grave in Gur-e-Amir

This would be an easy puzzle for Ulug Beg, and he would not walk too far away from his observatory to log the cache. Can you solve it as well?

Hint and spoiler picture in geochecker - 5m tolerance