Chip name                               SITe2

Year of manufacture              1995

Serial number                         4321ADR01-01

First light on La Palma          December 1997

Description                        Photo of Site chip in cryostat

Operational Characteristics

 

.	Full Frame Readout(s)	1K Square Readout	Gain e/ADU	Noise e	Bias ADU	Linearity
Standard	255	87	1.13	6.6	906	+/-0.6% to 65K
Quick	126	55	1.41	7.5	625	+/-0.8% to 65k
Turbo	91	45	1.95	11.7	301	+/-1.1% to 55k
2x2 Binned	80	-	1.1	5.4	1061	+/-0.3% to 62k

Vertical CTE                        0.9999993

Horizontal CTE                    0.999999
 

Physical Characteristics

Pixel Scale (JKT A&G)                       0.33 arc/pixel

Field of view (JKT A&G)             10 x 10 arcmin (unvignetted)
                                                             11 x 11 arcmin (vignetted,70% light loss)

X Pixel size                                    24 microns

Y Pixel size                                    24 microns

X size in pixels of digitised area      2148

Y size in pixels of digitised area      2148

X size of useful imaging area            2048

Y size of useful imaging area          2048

X start of useful imaging area        20

Ystart of useful imaging area         1

LN2 capacity of cryostat             2.5 litres

Cryostat window thickness                4 mm

Distance from window to CCD       10.3 mm

Cryostat window size                  80mm diameter
 

Operational Parameters

Flooding type                              none

Operating temperature                    156K

Preferred amplifier                        A, (B is possible backup but noisy >20e)

Network name                             CCD4

Anti-blooming available              no
 

Measured characteristics

Quantum Efficiency

Dark current                          1 e/hour

Full well bloom limit               130000 e

Chip flatness                           230 micron convex bow

Cosmetics                               Two blocked column clusters close to edges of chip