Space Image Sensors
C640 for 3D Terrain Mapping Camera (TMC)
- 4000 linear image sensor, PGA, 12 bit ADC output
- Destructive / Non destructive readout mode
- Global exposure control pin to control integration time
- Low fixed pattern noise, high dynamic range
C650 for Hyper-Spectral Imager Camera (HySI)
- 256 x 512 area sensor, PGA, 12 bit ADC output
- 50 μm x 50 μm pixel size
- Snap shot function, up to 250 ms integration time
- Row wise response compensation, dark voltage cancellation
- < 1 % of the linearity
C468 for CMOS MSOC
- 12,000 pixels of PAN and 6,000 pixels of four Multi-spectral (B, G, R, NIR)
- Extra high speed (0.3 ms / line integration time)
- 10 μm x 10 μm for PAN and 20 μm x 20 μm for Multi-spectral
Moon Missions
Japan | China | India | USA |
|
Satellite | Kaguya | Chang'e-1 | Chandrayaan-1 | Lunar Reconnaissance Orbiter |
Overall Weight [tons] | 3.0 | 2.3 | 1.4 | - |
Launch Date | September 2007 | October 2007 | October 2008 | June 2009 |
Camera Type | Terrain Camera & Multi-band | 3D Terrain Mapping | 3D Terrain Mapping | 3D Terrain Mapping |
Sensor | CCD | CCD | CMOS (C640) | CCD |
Camera Weight [Kg] | 9.4 | > 30 | 6.3 | 9.8 |
Camera Power [Watts] | > 10 | 1.8 | 20 |
Radiation
CCD | CMOS |
< 100 krad | < 300 krad |
Focal Plane Array (Space Camera)
- PAN: 12000 pixel, 10 um pitch, @297 us+/- 5% integration time
- MS (4 bands): 6000 pixels, 20um pitch, @594 us +/- 5% integration time
- Band to band registration error < 1um
- Band to band peak elevation < 1um
SNR Requirements
Band | Band Definition [nm] | Mean Irradiance [W/m2] |
Saturated Irradiance [W/m2] | SNR @ Mean Irradiance |
PAN | 400 ~ 700 | 0.1430 | 0.5460 | ≥ 100 |
B1 | 455 ~ 515 | 0.0318 | 0.1193 | ≥ 105 |
B2 | 525 ~ 595 | 0.0350 | 0.1402 | ≥ 105 |
B3 | 630 ~ 690 | 0.0319 | 0.1239 | ≥ 105 |
B4 | 762 ~ 897 | 0.0571 | 0.2445 | ≥ 105 |