The perigee point of ISO's orbit was below the radio horizon of the mission control centers at both VILSPA and Goldstone, thus forcing the science instruments to be switched off at perigee.
12.
This not only causes dew, frost, or fog, but also causes a slight " drag " on the bottom of the radio waves, bending the signals down such that they can follow the Earth's curvature over the normal radio horizon.
13.
Two singles were released from this, " That Generation That Nobody Remembered ", backed with a virtual reality music video for the Oculus Rift; and " Beyond the Radio Horizon ", the video for which used YouTube's new 360 degree functionality.
