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Athena

Instruments
 

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The baseline payload for Athena consists of two focal plane instruments: the X-ray Microcalorimeter Spectrometer (XMS) and the Wide-Field Imager (WFI). They have the following key parameters

  WFI XMS
pixel size 130 µm 250 µm
array format (pixels) 640 x 640 32 x 32
detector size 80 x 80 mm 8 x 8 mm
Pixel size (arcsec) 2.3" 4.5"
Resulting FoV (arcmin) 25 x 25 2.4 x 2.4
Readout modes Full frame: frame time = 1.3 ms
Window : Δt = 20 µs (TBC)
Na
Filer wheel Open/close/Cal/filter
(default observing with filter for contamination reasons)
Open/closed/Cal/filter/diffusor
(polarizing filter?)
 
Resources
Mass 61 kg 409 kg
Power 180 W 1100 W
Typ/max data rate 45/450 kbit/s 64/840 kbit/s


© High-Energy-Group at MPE
last update: 24-Apr-2011, by Thomas Boller and Joachim Paul


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