ASTROSAT CZTI

Data Quality Report

Orbit 02944

Creation date: 2024-06-27T14:22:33.335314
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/AS1P01_999T99_9000000414_02944cztM0_level2.evt modeM0/AS1P01_999T99_9000000414_02944cztM0_level2_quad_clean.evt
Size (bytes)270,066,24020,632,320
Size257.6 MB 19.7 MB
Events in quadrant A1,152,509101,829
Events in quadrant B1,361,724102,150
Events in quadrant C1,407,392111,255
Events in quadrant D4,056,921100,142

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A058762
B063411
C064221
D0140671

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0580
B0580
C0580
D0580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A292540.136752%
B2925331.128205%
C2925622.119658%
D292587229.811966%

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 2925 2925 0 0 0.00% 0.00%
B 2925 2925 33 33 1.13% 1.13%
C 2925 2925 20 20 0.68% 0.68%
D 2925 2925 703 703 24.03% 24.03%

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 13 251 15158 246.9 285 278 60.3
A 14 63 10907 176.37 285 278 60.3
A 12 133 9325 150.12 285 278 60.3
B 3 27 171770 2915.95 291 284 58.8
B 0 228 15921 265.89 291 284 58.8
B 8 3 11310 187.49 291 284 58.8
C 9 204 112555 1670.3 280 281 67.2
C 8 161 83739 1241.61 280 281 67.2
C 9 185 44009 650.54 280 281 67.2
D 14 97 1008834 16070.5 244 240 62.8
D 15 50 933896 14876.47 244 240 62.8
D 15 194 595371 9482.56 244 240 62.8

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
Veto Counter