Launched on a Russian Proton rocket from the Baikonur launch center in central Asia, Spektr was lofted into orbit on May 20, 1995. The module was berthed at the radial port opposite Kvant 2 after Kristall was moved out of the way. Spektr carries four solar arrays and scientific equipment (including more than 1600 pounds of U.S. equipment).
The focus of scientific study for this module is Earth observation, specifically natural resources and atmosphere. The equipment onboard is supplied by both Russia and the United States.
Scientific equipment on Spektr includes:
| Module | Mass (Kg) | Length (m) | Max. Diameter (m) | Pressurized Volume (Cubic Meters) | No. of Solar Arrays/Area (Square Meters) | Power Output (KW) | Function |
|---|---|---|---|---|---|---|---|
| Spektr | 19,640 | 13 | 4.35 | 61.9 | 4/35 | TBD | Geophysical sciences, remote sensing, U.S. payloads |