( < overhead persistent infrared,
"püsiv üla-infrapunakiirgus")

olemus
USA infrapunaluure programm, mis hõlmab
mandritevaheliste ballistiliste rakettide
avastamise ja jälituse süsteeme
= the US infrared intelligence program of intercontinental ballistic missile detection and tracking systems

ülevaateid
https://calhoun.nps.edu/bitstream/handle/10945/44600/14Dec_Krueger_Michael.pdf?sequence=1&isAllowed=y

http://www.airforcemag.com/DRArchive/Documents/2019/Next-Gen-OPIR-Acq-Strategy.pdf

http://www.spacesymposium.org/wp-content/uploads/2017/10/Walker-Thomas-Developing-an-Adaptive-OPIR-Exploitation-Framework.pdf

https://www.ssc.spaceforce.mil/Portals/3/Documents/PRESS%20RELEASES/Next-Generation%20Overhead%20Persistent%20Infrared%20Program%20Selects%20Mission%20Payload%20Suppliers%20v4.pdf

vt ka
- SBIRS