ASTROSAT CZTI

Data Quality Report

Orbit 13574

Creation date: 2024-06-27T16:42:53.287396
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_047T01_9000002002_13574cztM0_level2.evt modeM0/AS1G08_047T01_9000002002_13574cztM0_level2_quad_clean.evt
Size (bytes)460,632,96063,852,480
Size439.3 MB 60.9 MB
Events in quadrant A3,153,030372,867
Events in quadrant B3,392,640379,932
Events in quadrant C3,391,859376,561
Events in quadrant D3,580,773359,995

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132713
B0140382
C0138232
D0146212

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6358430.676313%
B6358831.305442%
C6358490.770683%
D6358941.478452%

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 7519 6359 0 0 0.00% 0.00%
B 7519 6359 19 19 0.25% 0.30%
C 7519 6359 1 1 0.01% 0.02%
D 7519 6359 58 58 0.77% 0.91%

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 1 162 23526 141.58 805 791 160.6
A 2 250 7781 43.53 805 791 160.6
A 0 226 7489 41.71 805 791 160.6
B 0 182 57963 377.87 810 793 151.3
B 0 85 57796 376.77 810 793 151.3
B 0 214 47490 308.65 810 793 151.3
C 3 233 293276 1624.32 785 791 180.1
C 8 128 11849 61.41 785 791 180.1
C 0 207 9567 48.74 785 791 180.1
D 5 222 232442 1250.96 778 756 185.2
D 1 20 117455 630.1 778 756 185.2
D 8 195 90573 484.96 778 756 185.2

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