Wikipedia's Ofeq; Launch History lists Ofeq 1 through 11 and then 16. It does not mention a 12, 13, 14 or 15. Were they so stealthily launched that nobody knows about them, or skipped, had non-Ofeq based names (see Ofek-8 below), or something else?
Ofeq, also spelled Offek or Ofek (Hebrew: אופק, lit. Horizon) is the designation of a series of Israeli reconnaissance satellites first launched in 1988.
- TecSAR "EL/M-2070 TecSAR, also known as TechSAR, Polaris and Ofek-8"