PLANS FOR RUSSIA’s GEOSTATIONARY SATELLITE
PROGRAM: GOMS/ELECTRO #2 RUSSIAN FEDERAL SERVICE for HIDROMETEOROLOGY & ENVIRONMENTAL MONITORING
SRC PLANETA - V.V. ASMUS, A.B. USPENSKY
FEDERAL SPACE AGENCY LAVOCHKIN ASSOCIATION - K.M. PICHKHADZE
RUSSIAN INSTITUTE OF SPACE DEVICE ENGINEERING - Yu.M. GEKTIN, M.N. NOVIKOV
Third GOES-R User Conference
Boulder, Colorado, USA May 10 – 14, 2004
May 2004 Page: 2
ELECTRO-L General Design
May 2004 Page: 3
GOMS/ELECTRO Project Cooperation
• Project Customers:
State Customer : Russian Federal Space Agency
Customer : Russian Federal Service for Hydrometeorology and Environment Monitoring
General contractor:
Lavochkin Association
• Main co-developers:
SRC PLANETA
Russian Institute of Space Device Engineering
Science Center for Operative Earth Monitoring
May 2004 Page: 4
ELECTRO-L Satellite characteristics
ELECTRO-L Satellite main characteristics:
- Three-axis high-precision stabilization
- In-orbit mass - 1500 kg
- Payload mass - 370 kg
- Lifetime - 10 years
- Power (end of life) - 1700W
May 2004 Page: 5
GOMS / ELECTRO MISSION
GOMS/ELECTRO #2 (ELECTRO-L) Geostationary Orbit , 76°E, Satellite Launch Date - 2006
Primary mission objectives• Continuous observation of the Earth within a radius of 55-60 degrees centred at the sub-satellite point; providing simultaneous images of cloud cover and the Earth’s surface in 10 spectral channels of visible and infrared range;• Collection and retransmission the hydrometeorlogical data from national and international platforms (DCPs) to the main and regional forecasting centers; • Heliogeophysical measurements at geostationary orbital altitude;• Dissemination through the satellite various information products (image fragments, charts and numerical data) from the main and regional centers to national and foreign users’ receiving stations.
May 2004 Page: 6
ELECTRO / GOMS Mission
LEO Satellite
Mission Control Centre
PLANETA
LRIT Station
Regional
Regional
May 2004 Page: 7
GOMS / ELECTRO PAYLOAD
MULTICHANNEL SCANNING UNIT MSU-GS:
(Optical imaging radiometer)
TELECOMMUNICATION PACKAGE (DCS)
HELIO-GEOPHYSICAL SENSORS
COSPAS-SARSAT S&R TRANSPONDER
May 2004 Page: 8
BASIC PERFORMANCE CHARACTERISTICS OF MSU-GS
1. Number of Channels
VIS
IR
10
3
7
2. Spectral Range at half maximum of spectral response function (m)
0.5-0.65; 0.65-0.80;0.8-0.9; 3.5-4.0;
5.7-7.0; 7.5-8.5;8.2-9.2; 9.2-10.2;
10.2-11.2; 11.2-12.5
3. Image Frame (deg x deg) 20 0.5 x 20 0.5
4. HRIT Ground Resolution in Subsatellite Point (km) 1.0 (VIS); 4.0 (IR)
5. S/N Ratio for VIS channels 200
6. NET at 300K (K)
in the band 3.5-4.0 m
in the band 5.7-7.0 m
in the band 7.5-12.5 m
0.8
0.4
0.1-0.2
7. Power (W) 150
8. Weight (kg) 88
9. Lifetime of basic and reserve units (years) 10
May 2004 Page: 9
200200
Scan geometry of IR module (MSU-GS)
Objective
Two-axis scan mirror
Multi-element detector array
УZ
96 lines
Direction of line-by-line scanning
Direction of frame scanning
Х
Scan mirror
Direction of frame scanning
Direction of line-by-line scanning
Y
200
190
Scan geometry of VIS module (MSU-GS)
Objective
Detector CCD(6000
elements)
X
General Scheme of MSU-GS Scan Geometry
Z
Page: 10
AN ISOMETRIC VIEW OF THE MSU-GS
Blenda
VIS module
IR module
Panel with multi-element detector arrays
Passive (radiative) cooler
May 2004 Page: 11
VIS
3.5-4.0 μm
8.2-9.2 μm
IR
0.5-0.65 μm
0.65-0.8 μm
0.8-0.9 μm
Data from MSU-GS(repeat 30-min cycle)
Cycle time – 30 minDuration of measurements in 7 IR channels – 7 minDuration of measurements in 3 Vis channels –6 minRandom image selection and more frequent regime are envisaged
9.2-10.2 μm
10.2-11.2 μm
11.2-12.5 μm
5.7-7.0 μm
7.5-8.5 μm
May 2004 Page: 12
MSU-GS IR Data Applications
IR CHANNELS
Ground Resolution 4 Km
3.5 – 4.0 μm – Detecting of low-level clouds, fogs
SST, LST estimation
Detection of fires
9.2 – 10.2 μm - Total Ozone amount monitoring, AMW derivation (lower stratosphere)
10.2 – 11.2 , 11.2 – 12.5 μm -
SST, LST derivation, estimating total precipitable water
5.7 – 7.0 μm - AMW derivation
CTH assessment (semi-transparent clouds)
7.5 – 8.5 μm – Detection of stratiform clouds
May 2004 Page: 13
MSU-GS VIS Data Applications
VIS CHANNELS
Ground Resolution
1 Km
0.5-0.65, 0.65-0.8 μm –Cloud and Aerosol Detection
0.8 – 0.9 μm – Cloud Tracking
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