This ons is called "Mehospas" (מחוספס) in hebrew.
its tracking laser pointed ground targets that lased by ground forces. the aircraft can use GBU-24 laser guided bombs with this pod.
Another issue - this F-16A block 10 with 246 sign has changed his number to 140 and became the leader of 140sqn. Every sqn in the IAF has a leader aircraft that has its sqn number. just like 253sqn with Sufa 253 or 116sqn with Netz 116.