Comparison of Future and Present X-ray Missions

Comparison of Various X-ray Observatories
Observatory XMM Chandra Suzaku Constellation X ASCA ROSAT RXTE
Detector EPIC MOS EPIC PN RGS ACIS back ACIS front HRC HETG LETG XRS XIS Calori- meter Grating SIS GIS PSPC HRI PCA
Energy Range (keV) 0.2-12 0.2-12 0.4-2.5 0.1-10 0.4-10 0.1-10 0.6-10 0.1-6 0.3-12 0.2-12 0.2-10 0.2-2 0.4-12 0.6-12 0.1-2.4 0.1-2.4 2-60
Effective Area (cm2)  
@0.25 keV 133 460 - 30 - 150 - 25 - - 3081 1235 - - 240 40 -
@0.4 keV 360 771 44 120 35 50 - 12 - - 864 2000 15 - 7 11 -
@0.6 keV 591 1061 94 345 70 65 - 25
 
 
5127 3720 35 - 70 8 -
@1.0 keV 922 1227 185 615 385 215 10 55 100 1600 11274 5327 230 50 210 80 -
@1.5 keV 1180 1304 160 500 525 162 45 105
 
 
13362 4100 300 145 180 60 -
@2.5 keV 696 779 - 320 320 65 20 50
 
 
7765 - 195 125 - - 700
@6.0 keV 768 851 - 205 235 45 25 20 150 1000 6600 - 160 125 - - 5000
@8.0 keV 390 557 - 45 60 10 7 4
 
 
4277 - 55 60 - - 6000
@12.0 keV 19 56 - - - - - -
 
 
638 - - - - - 4000
Energy Resolution (eV)  
@0.25 keV 35 35 - 130 37 - - 0.4 - - 2 0.25 - - 250 - -
@0.4 keV 45 45 0.5 120 42 - - 0.8 6.5 30 2 0.65 75 - 350 - -
@1.0 keV 55 55 2.9 100 56 - 1.0 5.4 6.5 50 2 4.1 100 190 500 - -
@2.5 keV 85 85 17 120 82 - 5.2 34 6.5 80 2 - 135 300 - - 725
@6.0 keV 130 130 - 170 130 - 29 - 6.5 120 2 - 240 460 - - 1125
@8.0 keV 150 150 - 190 150 - 50 - 6.5 140 2 - 265 540 - - 1300
Angular Resolution (FWHM) ~6" ~6" - 1" 1" <0.5" - - limited <1.5' 6" - 1' 1' 15" 5" 1 deg
Field of View 30' 30' - 17'x17' 17'x17' 31'x31' - - 3'x3' 19'x19' 2.5' - 22'x22' 20'x20' 114' dia 20'x20' 1 deg



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