ASTROSAT CZTI

Data Quality Report

Orbit 09081

Creation date: 2024-06-27T15:41:21.129029
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/AS1G07_057T04_9000001264_09081cztM0_level2.evt modeM0/AS1G07_057T04_9000001264_09081cztM0_level2_quad_clean.evt
Size (bytes)279,423,36049,573,440
Size266.5 MB 47.3 MB
Events in quadrant A4,011,222302,611
Events in quadrant B1,463,095339,651
Events in quadrant C1,274,764332,433
Events in quadrant D1,517,914322,030

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0580
B0580
C0580
D0580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014227334
B06442141
C06018111
D06520128

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A283171525.256093%
B2860501.748252%
C2861210.734009%
D2856531.855742%

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 2904 2883 542 542 18.66% 18.80%
B 2904 2889 1 1 0.03% 0.03%
C 2904 2895 0 0 0.00% 0.00%
D 2905 2895 19 19 0.65% 0.66%

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 8 5 2726393 40478.95 320 313 67.3
A 1 162 26697 391.77 320 313 67.3
A 1 178 6096 85.87 320 313 67.3
B 4 48 64799 954.28 338 330 67.6
B 0 214 56590 832.77 338 330 67.6
B 0 230 13804 199.45 338 330 67.6
C 13 61 2497 28.01 326 326 77.5
C 14 234 2256 24.9 326 326 77.5
C 3 202 842 6.66 326 326 77.5
D 7 71 123223 1466.43 331 320 83.8
D 6 225 46011 545.17 331 320 83.8
D 8 195 30845 364.21 331 320 83.8

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter