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 kg - Payload mass kg - Lifetime - 10 years - Power (end of life) W

May 2004 Page: 5 GOMS / ELECTRO MISSION GOMS/ELECTRO #2 (ELECTRO-L) Geostationary Orbit, 76°E, Satellite Launch Date Primary mission objectives Continuous observation of the Earth within a radius of 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

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 Spectral Range at half maximum of spectral response function (  m) ; ; ; ; ; ; ; ; ; Image Frame (deg x deg) 20  0.5 x 20  HRIT Ground Resolution in Subsatellite Point (km)1.0 (VIS); 4.0 (IR) 5.S/N Ratio for VIS channels  NE  T at 300K (K)  in the band  m  in the band  m  in the band  m Power (W)  Weight (kg)  88 9.Lifetime of basic and reserve units (years)10

May 2004 Page: Scan geometry of IR module (MSU-GS) Objective Two-axis scan mirror Multi-element detector array У Z 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 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 μm μm IR μm μm μm Data from MSU-GS(repeat 30-min cycle) Cycle time – 30 min Duration of measurements in 7 IR channels – 7 min Duration of measurements in 3 Vis channels –6 min Random image selection and more frequent regime are envisaged μm μm μm μm 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 , μm –Cloud and Aerosol Detection 0.8 – 0.9 μm – Cloud Tracking