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