Please make a donation to support Gunter's Space Page.
Thank you very much for visiting Gunter's Space Page. I hope that this site is useful and informative for you.
If you appreciate the information provided on this site, please consider supporting my work by making a simple and secure donation via PayPal. Please help to run the website and keep everything free of charge. Thank you very much.



U2U (Untitled 2U) is picosatellite built by the Air Force Research Laboratory (AFRL). It is built to the 2U CubeSat form factor.

U2U carries the Electron and Globalstar Mapping (EGM) Experiment. The satellite from the Air Force Research Laboratory's Small Satellite Portfolio (SSP) utilizes a commercial pulse processing board from Amptek Inc. with a custom preamplifier and solid state detector to measure electron energies and fluxes and in low earth orbit. The spacecraft autonomously beacons this data to the ground in real time using a Globalstar simplex modem. From its 98° inclination, the instrument has an excellent viewpoint on higher latitudes while providing near instantaneous reporting of the local electron environment. As an extremely low-cost mission, U2U supplements existing on-orbit measurements while reducing the technical risk of core instrument components to be flown on AFRL’s Very Low Frequency and Particle Mapper (VPM) CubeSat.

U2U was to be launched in September 2016 on an Atlas-5(401) rocket as a NRO sponsored piggy-back payload, but during launch delays, it was for unknown reasons replaced by OptiCube 4. Likely it has been cancelled.

Nation: USA
Type / Application: Calibration
Operator: Air Force Research Laboratory (AFRL)
Contractors: Air Force Research Laboratory (AFRL)
Equipment: EGM
Configuration: CubeSat (2U)
Propulsion: None
Power: Solar cells, batteries
Mass: 5 kg
Satellite COSPAR Date LS Launch Vehicle Remarks
U2U - cancelled with ?


Cite this page: