SNOE

USA

Student Nitric Oxide Explorer - Also called Explorer 72
Also called STEDI 1 and UNEX 01; pronounced "snowy"

Launch data:

Designation	25233 / 98012A
Launch date	26 Feb 1998
Launch site	Va, L-1011
Launch vehicle	Pegasus-XL (#20)
Mission	Scientific:
Perigee/Apogee	536/580 km
Inclination	97.7°
Period	95.8 min

Built at the University of Colorado's Laboratory for Atmospheric Research and Space Physics. It will analyse and measure the contributions of nitric oxide from the Sun and magnetoshpere to the lower atmosphere. First satellite of the Student Explorer Demonstration Initiative program.

Specifications:

Prime contractor
Platform
Mass at launch	132 kg
Mass in orbit
Dimension	99 x 91 cm
Solar array
Stabilization
DC power	35 W consumption
Design lifetime

SNOE & Batsat integrated onto the launcher

It carries 3 instruments: an ultraviolet spectrometer to measure nitric oxide altitude profiles, a two-channel auroral photometer to measure auroral emissions beneath the spacecraft, and a five-channel solar soft X-ray photometer.

downlink: 2272.9 MHz
downlink rate: 128 kbps

Ref: #15, #27 - update: 20.12.12