References:
- Space-Track.org – Space-Track.org promotes space flight safety, protection of the space environment and the peaceful use of space worldwide by sharing space situational awareness services and information with U.S. and international satellite owners/operators, academia and other entities.
- Suomi NPP – Understanding, monitoring, and predicting the course of long-term climate change AND short-term weather conditions remain tasks of profound importance. Economic competitiveness, human health and welfare, and global security all depend in part on our ability to understand and adapt to global environmental changes.
- EPA.gov – United States Environmental Protection Agency
