| Name of Satellite, Alternate Names | HumSat-D |
| Country of Operator/Owner | Spain |
| Operator/Owner | University of Vigo |
| Users | Civil |
| Purpose | Technology Development |
| Class of Orbit | LEO |
| Type of Orbit | Sun-Synchronous |
| Longitude of GEO (degrees) | 0 |
| Perigee (km) | 590 |
| Apogee (km) | 640 |
| Eccentricity | 0.00357909806728704 |
| Inclination (degrees) | 97.8 |
| Period (minutes) | 96.9 |
| Launch Mass (kg.) | 1 |
| Dry Mass (kg.) | |
| Power (watts) | |
| Date of Launch | 21-11-2013 |
| Expected Lifetime | |
| Contractor | University of Vigo |
| Country of Contractor | Spain |
| Launch Site | Dombarovsky Missile Base |
| Launch Vehicle | Dnepr |
| COSPAR Number | 2013-066T |
| NORAD Number | 39433 |
| Comments | Demonstrator for the future HumSat constellation - a store-dump communications system to collect data from ground-based sensors. |