ASTROSAT CZTI

Data Quality Report

Orbit 14185

Creation date: 2024-06-27T16:51:23.949228
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A04_229T01_9000002096_14185cztM0_level2.evt modeM0/AS1A04_229T01_9000002096_14185cztM0_level2_quad_clean.evt
Size (bytes)519,540,48067,870,080
Size495.5 MB 64.7 MB
Events in quadrant A3,472,264408,380
Events in quadrant B3,647,942423,737
Events in quadrant C3,682,544394,428
Events in quadrant D4,490,800375,064

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141693
B0147722
C0148312
D0179262

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64981151.769775%
B64981442.216066%
C64981472.262235%
D64981842.831641%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7789 6500 3 3 0.04% 0.05%
B 7789 6500 5 5 0.06% 0.08%
C 7789 6500 50 50 0.64% 0.77%
D 7789 6500 92 92 1.18% 1.42%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 12 189 36403 199.47 888 874 178.1
A 9 143 11296 58.51 888 874 178.1
A 15 69 11126 57.56 888 874 178.1
B 3 209 65169 392.29 885 867 163.9
B 4 142 39924 238.28 885 867 163.9
B 0 189 35009 208.29 885 867 163.9
C 0 207 264236 1374.41 842 848 191.6
C 3 233 112683 583.57 842 848 191.6
C 14 234 18997 94.7 842 848 191.6
D 8 195 483166 2433.8 843 825 198.2
D 10 157 338833 1705.52 843 825 198.2
D 2 152 108943 545.54 843 825 198.2

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter