ASTROSAT CZTI

Data Quality Report

Orbit 10376

Creation date: 2024-06-27T15:58:35.784086
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/AS1A03_073T01_9000001498_10376cztM0_level2.evt modeM0/AS1A03_073T01_9000001498_10376cztM0_level2_quad_clean.evt
Size (bytes)474,194,88066,663,360
Size452.2 MB 63.6 MB
Events in quadrant A3,102,277395,644
Events in quadrant B3,380,174402,990
Events in quadrant C3,085,020405,344
Events in quadrant D4,361,399370,146

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132232
B0139991
C0132151
D0171921

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6369470.737949%
B6369661.036269%
C6369400.628042%
D63691862.920396%

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 7609 6370 0 0 0.00% 0.00%
B 7609 6370 7 7 0.09% 0.11%
C 7609 6370 0 0 0.00% 0.00%
D 7609 6370 142 142 1.87% 2.23%

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 5 16 14972 88.91 798 782 159.6
A 3 1 14968 88.89 798 782 159.6
A 0 226 7373 41.3 798 782 159.6
B 0 214 108468 722.34 804 787 149.1
B 4 239 64270 425.86 804 787 149.1
B 11 51 37819 248.42 804 787 149.1
C 14 234 10317 53.11 787 792 179.3
C 13 61 5830 28.09 787 792 179.3
C 15 48 3709 16.27 787 792 179.3
D 8 195 540801 2970.48 764 745 181.8
D 1 52 349965 1920.82 764 745 181.8
D 14 34 208768 1144.19 764 745 181.8

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