The February 2018 edition of Orbital Debris Quarterly News (ODQN) is now available and includes the article "Two Anomalous Events in GEO," republished here.
This issue also includes articles on space debris sensor launch updates, SEM analysis results from post-flight inspection of the PMA-2 cover, a review of the CubeSat study project and a photo feature documenting the Space Debris Sensor installation.