For bright space objects, regular orbit updates are provided and 90% of them have accurate orbits, which allow using this catalog for conjunction assessment analysis. Quality of the catalog has become significantly uneven for different types of objects. But the discovery of a significant number of HEO-objects, including faint ones, has led to new problems. To solve this problem, two-tube and four-tube telescope systems were developed and implemented in the framework of Roscosmos observatories, with FOV 9x7 and 9x14 degree. Next task was to detect more objects in highly elliptical orbits (HEO).

In the next stage a goal was to increase knowledge about faint debris fragments at GEO, and a methodology of local GEO surveys has been developed to detect uncataloged objects with 50-cm and 65-cm telescopes with FOV 2x2 degrees. In connection with involving into work of Roscosmos system on prognosis of dangerous situations it were elaborated small telescopes with FOV 7x7 degrees and developed the extended surveys, significantly increases the accuracy of the orbits for all bright GEO-objects by multiple scans for the night. This work made it possible to compile and maintain a list of orbits of all bright GEO-objects. Since the GEO remained the most unexplored at that time, the main focus was on small survey telescopes with FOV 4x4 degree that could dig through the entire visible part of the GEO overnight. But after the start of regular research, it became obvious that outdated non-automated telescopes with small fields of view (FOV) and insufficient sensitivity are not suitable.

At the first stage, attempts were made to use the telescopes that remained in observatories since the USSR for observations of space objects.

At different stages of the project, as the level of knowledge about space debris, new tasks and problems appeared that required the development of new tools and methods for monitoring the near Earth space. International scientific optical network (ISON) project started in 2004 as open international voluntary project on self-financing basis to be an independent source of data for scientific and applied purposes about natural and artificial space objects.

Optical telescope