OVERVIEW:  The TP-23M IRST (Infrared Search and Track) is a passive airborne sensor that detects infrared radiation.

DETAILS: 
 The IRST provides a passive search capability for use in a high ECM environment.  Additionally, when used with an IR missile, it allows for a surprise/no notice passive interception capability. However, the IRST is partially attenuated by atmospheric conditions.  Also, it has a shorter range than radar, although its angular resolution is superior.



Specifications:

	Frequency:	Infrared
	Range:		16.0 nm search at high altitude vs. bomber
			12.4 nm search at high altitude vs. fighter
			


NOTES:  Used in the MiG-23M.
 

SOURCES: Mladenov, Alexander. Soviet Cold War Fighters. Fonthill Media, 2017, location 3497 (Kindel ed.) location 3302-3316, 3584; 


