|
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
v |
Chandra (NASA):
|
|
|
Launched
July 23, 1999
|
|
|
1 telescope
|
|
|
2 CCD
cameras
|
|
|
2
transmission grating
|
|
|
spectrometers (spectroscopy
|
|
|
mode is alternative to imaging)
|
|
|
v |
XMM-Newton (ESA):
|
|
|
Launched
December 10, 1999
|
|
|
3 telescopes
|
|
|
2 reflection
grating spectrometers
|
|
1 Optical/UV
monitor
|
|
|
|