Center For Space Standards & Innovation

Tools Used By CSSI


Operated by Dr. T.S. Kelso since 1985, CelesTrak has established a credible reputation worldwide for providing educational materials and standard data to the space community such as two-line element sets, Earth Orientation Parameters, solar weather data, geomagnetic indices, precision orbit ephemerides, and associated models and documentation.


Satellite Orbital Conjunction Reports Assessing Threatening Encounters in Space offers a free list of top 10 possible conjunctions by maximum probability and minimum range.

Analytical Graphics, Inc.


Analytical Graphics, Inc. (AGI) develops the STK software suite for land, sea, air, and space initiatives.