ASTROSAT CZTI

Data Quality Report

Orbit 14106

Creation date: 2024-06-27T16:50:25.051877
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/AS1G08_022T01_9000002078_14106cztM0_level2.evt modeM0/AS1G08_022T01_9000002078_14106cztM0_level2_quad_clean.evt
Size (bytes)1,631,888,640304,248,960
Size1.5 GB 290.2 MB
Events in quadrant A11,237,3501,981,374
Events in quadrant B13,699,4511,928,927
Events in quadrant C11,063,2001,882,820
Events in quadrant D11,854,5861,825,331

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04740
B04740
C04740
D04740

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0486944
B0561524
C0475734
D0514794

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A231941630.702768%
B231946772.918858%
C23194870.375097%
D231942801.207209%

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 24680 23201 26 26 0.11% 0.11%
B 24680 23201 240 240 0.97% 1.03%
C 24680 23201 9 9 0.04% 0.04%
D 24680 23201 157 157 0.64% 0.68%

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 9 143 311137 556.82 2756 2688 553.9
A 15 222 140804 249.33 2756 2688 553.9
A 12 189 108407 190.85 2756 2688 553.9
B 10 16 1235964 2386.68 2728 2659 516.7
B 0 189 727902 1403.48 2728 2659 516.7
B 10 245 453209 871.9 2728 2659 516.7
C 3 233 552485 891.84 2668 2679 616.5
C 14 234 50008 76.77 2668 2679 616.5
C 0 207 29574 43.63 2668 2679 616.5
D 12 110 851709 1360.2 2644 2580 624.3
D 1 52 377660 600.83 2644 2580 624.3
D 2 152 119099 186.65 2644 2580 624.3

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