IAI Ofeq-4

Ofeq-4 was an Israeli reconnaissance satellite built by Israel Aircraft Industries, now Israel Aerospace Industries, that never reached orbit. A Shavit rocket carrying it was launched from Palmachim in January 1998 and failed during second-stage burn, so the satellite fell into the Mediterranean Sea. Gunter's Space Page notes that it may have been the prototype of the EROS-A commercial Earth observation satellite, and the catalogues give it the same 189 kg mass as Ofeq-3. The two sources date the launch to 22 or 23 January 1998. It is listed here as a lost vehicle because it belongs to the numbered Ofeq series of satellites and was a real flight article, even though it produced no operating life in orbit.