The nitric oxide density was measured from 110 to 300 km by a rocket photometer during the day. The small measured peak density, about 6.2¿106 cm-3 at 111 km, can probably be attributed to the period of very low solar magnetic activity preceding the rocket flight. This experiment was coordinated with a similar mesurement made by the Ultraviolet Nitric Oxide Experiment aboard the Atmosphere Explorer C satellite: the measurments are in good agreement. The altitude resolution (<1 km) and sensitivity (1600 counts R-1 s-1) greatly exceed those of previous measurements. Comparison to a model shows agreement above 200 km but less nitric oxide and more structure below that.