ASTROSAT CZTI

Data Quality Report

Orbit 43132

Creation date: 2024-06-27T22:48:27.502453
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/AS1A09_006T07_9000005852_43132cztM0_level2.fits modeM0/AS1A09_006T07_9000005852_43132cztM0_level2_quad_clean.evt
Size (bytes)384,707,52096,405,120
Size366.9 MB 91.9 MB
Events in quadrant A4,184,282634,892
Events in quadrant B3,131,774661,826
Events in quadrant C2,794,065629,507
Events in quadrant D3,663,479574,062

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163692
B0134832
C0121582
D0152622

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60031642.731967%
B6002641.066311%
C600240.066644%
D60021342.232589%

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 8660 6005 163 163 1.88% 2.71%
B 8659 6004 35 35 0.40% 0.58%
C 8659 6004 2 2 0.02% 0.03%
D 8659 6004 106 106 1.22% 1.77%

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 15 222 907525 6824.29 644 630 132.9
A 10 83 632928 4757.98 644 630 132.9
A 15 237 116327 870.61 644 630 132.9
B 0 229 206860 1643.21 644 626 125.5
B 5 255 186919 1484.32 644 626 125.5
B 0 186 146411 1161.57 644 626 125.5
C 15 214 249946 1667.95 634 638 149.5
C 0 207 39788 261.93 634 638 149.5
C 14 254 13422 85.53 634 638 149.5
D 1 52 1005145 6438.89 627 609 156.0
D 12 218 96513 614.73 627 609 156.0
D 13 249 31184 195.98 627 609 156.0

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