About ASC
ASC Projects:
Suffa (Uzbekistan)

ASC Divisions:
Moscow Branch
PRAO (Pushchino)
The Space Observatory "Millimetron" (Project "Spektr-M")
Welcome to the official website of the Space Observatory Millimetron

The main contractor of this project is the Federal Space Agency (Roscosmos) and it is held in accordance with the current Federal Space Program.

The head organization in the scientific programme development and the scientific equipment design is the Astro Space Center (ASC) of P. Lebedev Physical Institute, Russian Academy of Science. It is carried out in cooperation with numerous Russian and foreign organizations.

The head company for the creation of a space complex is S. Lavochkin Research and Production Association.
The Space Observatory "Millimetron"(project "Spectrum-M") will substaintially contribute to solving astronomical problems in the far-infrared, submillimeter and millimeter wavelengths. This mission will enable astronomers to observe the universe with unprecedented sensitivity and angular resolution.

Optical configurationThe Cassegrain
Total Weight (mass) 6.6 t
Payload (Scientific instruments)4.5 t
Payload (Service system) 2.1 t
Operating temperatures:: 
mirror system 4.5 К
detector receivers 0.1 К
location in the vicinity of L2
period 180 days
Launch year2019 .
Lifetime10 years
The Launcher:Proton (UR-500)
Primary mirror(PM): 
Diameter10 m
Focal length2.4 m
Surface accuracy (RMS) 10 um
Pointing accuracy 0.2 arc sec (RMS)
MaterialHigh-modulus fiber material: carbon (LTM123/M55j)
The Secondary mirror: 
Diameter530 mm
Deflection 135 mm
Imaginary focus coincides with the focus GB 
Surface accuracy (RMS) 3 um
Materialsilicon carbide (SIC)
The single-dish mode: 
Bolometer arrays: 
wavelength ranges:0.2 - 0.4 mm and 0.7 - 1.4 mm
angular resolution (at 0.2 mm) 4 arcsec
Low-resolution spectrometer/ polarimeter: 
Wavelength ranges:0.02 - 3 mm
Spectral resolution:R = 3
Medium-resolution spectrometer: 
Wavelength ranges:0.03 - 0.8 mm
Spectral resolution:R = 1000
High-resolution spectrometer: 
Wavelength ranges:0.05 - 0.3 mm
Spectral resolution:R = 106
bolometric sensitivity (at 0.3 mm, integration time 1 hour)=10-9 Jy (RMS)
The ground-space interferometer mode 
Frequency ranges (GHz)18-26, 31-45, 84-116, 211-275, 602-720, 787-950
Sensitivity Interferometer (RMS) (bandwish segment 1 GHz, integration time 300 s) 
Ground segment – АLMA and RТ-70 [Suffa] 4.0*10-3 Jy (at 950 GHz, Тn = 200 К)
0.5*10-3 Jy (at 275 GHz, Тn = 50 К)
Fringe size:
(at 0.3 mm and max baseline 1 750 000 km)
37*10-9 arcsec

In the table presented the main characteristics of large telescopes currently under development, that illustrate significance Millimetron mission.