Dark current calibration summary 2022-05-30

Date (mean): 2022:150:00:54:01
T_ccd (mean): -10.60 C

CCD readouts summary

The table below provides the number of pixels which have the specified number of readouts. This quantifies how many pixels have been excluded either by star masking or because an entire quadrant readout is missing due to lost telemetry.

readoutsn_pixels
684
72
815509
9278
101032703

The table below summarizes each of the 1024x1024 CCD readouts that were used to create the calibration image. Note that each readout is stitched together from four quadrant readouts that are not synchronous in time. This is reflected in the quad dt column which shows the min and max delta time from the mean.

datequad dt (sec)t_ccdint_time(s)n_masked
2022:141:11:46:08-97 to +103-8.565.0627, 921, 738, 756
2022:141:11:46:46-105 to +105-8.5610.0627, 917, 740, 751
2022:146:20:21:28-97 to +103-11.275.01015, 1176, 340, 835
2022:146:20:22:06-105 to +105-11.2710.01014, 1185, 341, 840
2022:149:13:37:41-97 to +103-11.215.01025, 799, 629, 1124
2022:149:13:38:19-105 to +105-11.2110.01031, 804, 626, 1122
2022:154:18:17:07-97 to +101-7.655.01007, 784, 797, 504
2022:154:18:17:45-105 to +105-7.6510.0998, 781, 797, 503
2022:157:12:26:08-96 to +103-14.325.0765, 480, 786, 708
2022:157:12:26:43-112 to +107-14.3210.0766, 481, 788, 710

Plots (all scaled to -10 C)






Reference information

See the legacy dark current calibration pages for useful information.