Orbiting Vehicle 1-11 (also known as OV1-11 [1]) was an American satellite launched 27 July 1967 to study a range of environmental conditions in the upper atmosphere.

The Orbiting Vehicle satellite program arose from a US Air Force initiative, begun in the early 1960s, to reduce the expense of space research.

General Dynamics received a $2 million contract on 13 September 1963 to build a new version of the SPP (called the Atlas Retained Structure (ARS)) that would carry a self-orbiting satellite.

However, in 1964, the Air Force transferred ABRES launches to the Western Test Range causing a year's delay for the program.

[2]: 418, 420 OV1-11, like the rest of the OV1 satellite series, consisted of a cylindrical experiment housing capped with flattened cones on both ends[4] containing 5000 solar cells producing 22 watts of power.

Finally, instruments were included to study Earth's nightglow and also radio emissions on the VLF and LF bands.