Random triples
| Subject | Object |
|---|---|
| gptkb:Far_Infrared_Absolute_Spectrophotometer | blackbody sources |
| gptkb:Rover_Optical_Spectrometer | standard reference materials |
| gptkb:Electromagnetic_Calorimeter | Test beams |
| gptkb:Lunar_Thermal_Mapper | ground-based measurements |
| gptkb:Solar_Ultraviolet_Spectral_Irradiance_Monitor_(SUSIM) | standard reference sources |