Random triples
| Subject | Object |
|---|---|
| gptkb:GOSAT | ground-based measurements |
| gptkb:Landsat_9 | Onboard calibration |
| gptkb:Landsat-5 | Radiometric calibration |
| gptkb:Landsat_7_satellite | Onboard calibration |
| gptkb:Lunar_Surface_Cosmic_Ray_Detector | ground tests |
| gptkb:Landsat_4 | Radiometric calibration |
| gptkb:Sentinel-4_B | radiometric calibration |
| gptkb:Landsat-7 | Regularly performed |