ASTROSAT CZTI

Data Quality Report

Orbit 32029

Creation date: 2024-06-27T20:35:37.421111
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/AS1T04_046T01_9000004680_32029cztM0_level2.evt modeM0/AS1T04_046T01_9000004680_32029cztM0_level2_quad_clean.evt
Size (bytes)439,081,92061,899,840
Size418.7 MB 59.0 MB
Events in quadrant A2,444,586393,812
Events in quadrant B4,689,522382,297
Events in quadrant C2,812,508380,849
Events in quadrant D3,021,728376,669

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0102561
B0174663
C0112191
D0121801

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4856440.906096%
B48554669.598352%
C48551463.007209%
D4855671.380021%

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 5951 4856 16 16 0.27% 0.33%
B 5950 4855 254 254 4.27% 5.23%
C 5950 4855 59 59 0.99% 1.22%
D 5950 4855 44 44 0.74% 0.91%

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 15 174 73455 591.22 610 598 123.2
A 13 6 11182 85.89 610 598 123.2
A 13 254 8358 62.97 610 598 123.2
B 6 159 1275288 11378.93 584 569 112.0
B 12 18 815827 7277.5 584 569 112.0
B 0 190 122530 1088.7 584 569 112.0
C 0 10 228609 1677.92 579 582 135.9
C 3 233 181675 1332.56 579 582 135.9
C 14 238 95102 695.52 579 582 135.9
D 8 195 457402 3302.69 588 573 138.3
D 2 250 169051 1218.03 588 573 138.3
D 12 218 113739 818.15 588 573 138.3

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