E2V CCD#8 Read out times:

The tables below contain readout times for different setups and readout speeds of the CCD.
The four readout speeds offered are: 200 (default), 100, 400, and 800 Kpixels/sec.

Note : For every command you issue (exp, mexp) add an additional overhead of 2 seconds.
Note : One pixel corresponds to about 0.19 arcsec.

Examples : Total time spent for a full frame, bin 1x1, mexp 10 5 command at 200 Kpix/sec readout speed:
2 sec overhead for mexp command + (10 sec integration + 24.5 sec readout time) x 5 exposures = 174.5 sec

Total time spent for a full frame, bin 1x1, 5 times exp 10 command at 200 Kpix/sec readout speed:
(2 sec overhead for exp command + 10 sec integration + 24.5 sec readout time) x 5 exposures = 182.5 sec

200 Kpix/sec (default)
Readout times (in seconds) for 200Kpixels/sec read out rate.
The read out noise is about 12 ADU (3.9 e-)

Window	bin 1x1	bin 2x2
full frame 2148x2052	24.5	9.0
ysize full 2052:
xsize 1024	15.0	6.5
xsize 512	11.0	5.5
xsize 256	8.5	5.0
xsize 128	7.5	5.0
xsize 64	7.0	4.5
xsize 32	7.0	4.5
xsize full 2148:
ysize 1024	13.5	6.0
ysize 512	8.0	4.0
ysize 256	5.0	3.0
ysize 128	3.5	2.5
ysize 64	3.0	2.5
ysize 32	2.5	2.5
ysize = xsize:
1024	9.0	4.5
512	4.5	3.0
256	3.0	2.5
128	2.5	2.5
64	2.5	2.5
32	2.5	2.5

100 Kpix/sec
Readout times (in seconds) for 100Kpixels/sec read out rate.
The read out noise is about 11 ADU (3.5e-)

Window	bin 1x1	bin 2x2
full frame 2148x2052	41.5	13.5
ysize full 2052:
xsize 1024	23.0	5.5
xsize 512	14.5	6.5
xsize 256	10.5	5.5
xsize 128	8.5	5.0
xsize 64	7.5	4.5
xsize 32	7.0	4.5
xsize full 2148:
ysize 1024	22.0	7.5
ysize 512	12.0	5.0
ysize 256	7.5	3.5
ysize 128	4.5	3.0
ysize 64	3.5	2.5
ysize 32	3.0	2.5
ysize = xsize:
1024	12.5	5.5
512	5.5	3.5
256	3.5	2.5
128	2.5	2.5
64	2.5	2.5
32	2.5	2.5

400 Kpix/sec
Readout times (in seconds) for 400Kpixels/sec read out rate.
The read out noise is about 17.5 ADU (5.7 e-)

Window	bin 1x1	bin 2x2
full frame 2148x2052	13.5	6.0
ysize full 2052:
xsize 1024	10.0	5.5
xsize 512	8.0	5.0
xsize 256	7.5	5.0
xsize 128	7.0	4.5
xsize 64	6.5	4.5
xsize 32	6.5	4.5
xsize full 2148:
ysize 1024	8.0	4.0
ysize 512	5.5	3.5
ysize 256	4.0	2.5
ysize 128	3.0	2.5
ysize 64	2.5	2.5
ysize 32	2.5	2.5
ysize = xsize:
1024	6.0	4.0
512	4.0	3.0
256	3.0	2.5
128	2.5	2.5
64	2.5	2.5
32	2.5	2.5

800 Kpix/sec
Readout times (in seconds) for 800Kpixels/sec read out rate.
The read out noise is about 30.6 ADU (9.9e-)

Window	bin 1x1	bin 2x2
full frame 2148x2052	9.5	5.5
ysize full 2052:
xsize 1024	7.5	5.0
xsize 512	7.0	4.5
xsize 256	6.5	4.5
xsize 128	6.5	4.5
xsize 64	6.5	4.5
xsize 32	6.5	4.5
xsize full 2148:
ysize 1024	6.0	3.5
ysize 512	4.0	3.0
ysize 256	3.0	2.5
ysize 128	2.5	2.5
ysize 64	2.5	2.5
ysize 32	2.5	2.5
ysize = xsize:
1024	4.5	3.5
512	3.5	3.0
256	3.0	2.5
128	2.5	2.5
64	2.5	2.5
32	2.5	2.5