Instruments - SEM-2

SEM-2 performance


MEPED

Particles Detected
Electrons: 30 keV to >300 keV
Protons: 30 keV to >140 MeV
Sensors 2 - Solid State Detector Electron Telescopes
2 - Solid State Detector Proton Telescope
4 - SSD Omnidirectional Proton Sensors
Field of View Electron Telescopes: 30° Cone
Proton Telescopes: 30° Cone
Omni Sensors: 120° Cone
Data Entities
Electrons:3 integral channels from >30 to >300 keV
Protons:5 Differential channels from 30 to 7000 keV
5 integral channels from >7 to >140 MeV
Output Data Format 1 Serial Data (Data, Clock and Gate)
13 Analog Housekeeping Monitors
9 Bi-Level Housekeeping Monitors

Note: The MEPED interfaces to the spacecraft through a Data Processing Unit (DPU), which also supports the TED.
Command Requirements 7 Pulse Command Lines
6 Level Command Lines
Size
TED: 5.0" H x 9.9" W x 9.6" D
DPU: 3.1" H x 9.5" W x 11" D
Mass
TED: 8300 g
DPU: 4400 g
Power
TED: 3.9 Watts
DPU: 3.6 Watts
Temperature Range
Operating: -20°C to +25°C
Turn On: -30°C to +25°C
Non Operating: -30°C to +30°C

  
 
 TED

Particles Detected
Electrons: 0.05 - 20 keV
Protons: 0.05 - 20 keV
Sensors Electrostatic Analyzers for Energy Selection and Continuous Dynode Electron Mupltipliers for Particle Counting
Field of View 10° x 17° Cones : 0° Electrons
(full width) 30° Electrons
0° Positive Ions
30° Positive Ions
Data Entities For 0° and 30° Electrons and 0° and 30° Positive Ions:
  1. Total energy flux in 2 ranges (0.05-1 & 1-20 keV)
  2. Maximum energy flux density and energy at which it occurs
  3. 4 point particle spectra
  4. Background
Output Data Format 1 Serial Data (Data, Clock and Gate)
13 Analog Housekeeping Monitors
9 Bi-Level Housekeeping Monitors

Note: The TED interfaces to the spacecraft through a Data Processing Unit (DPU), which also supports the MEPED.
Command Requirements 7 Pulse Command Lines
6 Level Command Lines
Size
TED: 6.8" H x 5.7" W x 12" D
DPU: 3.1" H x 9.5" W x 11" D
Mass
TED: 4200 g
DPU: 4400 g
Power
TED: 2.2 Watts
DPU: 3.6 Watts
Temperature Range
Operating: -20°C to +30°C
Turn On: -30°C to +30°C
Non Operating: -30°C to +40°C

  
 
  
Last update: 29 June 2006


SEM

 •  About SEM (http://www.esa.int/esaLP/SEMD1DG23IE_LPmetop_0.html)
 •  Description (http://www.esa.int/esaLP/ESA8I1V9EYC_LPmetop_0.html)
 •  Products (http://www.esa.int/esaLP/ESAOL1V9EYC_LPmetop_0.html)

MetOp's instruments

 •  A/DCS (http://www.esa.int/esaLP/SEM3JGG23IE_LPmetop_0.html)
 •  AMSU-A1 (http://www.esa.int/esaLP/SEMAHGG23IE_LPmetop_0.html)
 •  AMSU-A2 (http://www.esa.int/esaLP/SEMIFGG23IE_LPmetop_0.html)
 •  ASCAT (http://www.esa.int/esaLP/SEMBWEG23IE_LPmetop_0.html)
 •  AVHRR (http://www.esa.int/esaLP/SEM9VEG23IE_LPmetop_0.html)
 •  GOME-2 (http://www.esa.int/esaLP/SEMTTEG23IE_LPmetop_0.html)
 •  GRAS (http://www.esa.int/esaLP/SEMTSEG23IE_LPmetop_0.html)
 •  HIRS (http://www.esa.int/esaLP/SEMUREG23IE_LPmetop_0.html)
 •  IASI (http://www.esa.int/esaLP/SEMNQEG23IE_LPmetop_0.html)
 •  MHS (http://www.esa.int/esaLP/SEM7ADG23IE_LPmetop_0.html)
 •  SARP-3 (http://www.esa.int/esaLP/SEMV4DG23IE_LPmetop_0.html)
 •  SARR (http://www.esa.int/esaLP/SEMU2DG23IE_LPmetop_0.html)
 •  SEM (http://www.esa.int/esaLP/SEMD1DG23IE_LPmetop_0.html)