The latest issue of Orbital Debris Quarterly News (ODQN) is now available. This December 2021 issue includes the articles "Accidental Collision of YunHai 1-02," "Updated NASA Technical Standard for Limiting Orbital Debris" and "Experimental Hypervelocity Impacts of Non-Spherical Projectiles on Whipple Shields." 

These articles and others can be found in ODQN, Volume 25, Issue 4, December 2021. Past issues of ODQN are available here.