| Spektr-M Спектр-M Millimetron | |
| Mission Type: | Sub-millimeter/FarIR |
| Operator: | Russian Astro Space Center |
| Website: | http://millimetron.ru/index.php/en/ |
| Manufacturer: | NPO Lavochkin |
| Payload Mass: | 62400NaN0 |
| Launch Date: | 2030 (planned) |
| Launch Rocket: | Angara A5 |
| Launch Site: | Vostochny Site 1A |
| Launch Contractor: | Roscosmos |
| Orbit Regime: | Halo orbit |
| Telescope Diameter: | 100NaN0 |
| Telescope Wavelength: | 0.02 to 17mm |
| Programme: | Spektr program |
| Previous Mission: | Spektr-UV |
Spektr-M[1] (Russian: Спектр-M) is a proposed Russian scientific satellite with a 10m (30feet) sub-millimeter to far infrared space telescope. It is designed to be a successor to the Herschel Space Observatory, covering similar wave bands, and to look into chemical evolution in the universe, black hole horizon radiation, and dark energy investigation.[2] Spacecraft design documentation and prototyping is currently underway and expected to continue until 2023. Due to budget cuts in 2019, launch is not expected until 2030.[3] [4]
The purpose of this mission is to study the universe in millimeter to far infra-red wavelengths. The Herschel mission did a similar job with a smaller dish of 3.5m (11.5feet), and this is a follow-up mission. The instruments are to be cooled with liquid helium to 4.5K for part of the mission, but sun shields will allow it to continue in a degraded mode once the coolant evaporates.
It will be placed in a halo orbit around the Sun–Earth Lagrangian point.[5]