ASTROSAT CZTI

Data Quality Report

Orbit 31429

Creation date: 2024-06-27T20:28:20.706990
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/AS1A10_094T31_9000004568_31429cztM0_level2.evt modeM0/AS1A10_094T31_9000004568_31429cztM0_level2_quad_clean.evt
Size (bytes)308,891,52076,749,120
Size294.6 MB 73.2 MB
Events in quadrant A1,769,159517,783
Events in quadrant B3,017,770508,340
Events in quadrant C1,879,417511,809
Events in quadrant D2,414,690503,067

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080420
B0123720
C081750
D098640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A401720.049788%
B4018461.144848%
C4018411.020408%
D4018441.095072%

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 4017 4017 0 0 0.00% 0.00%
B 4018 4018 28 28 0.70% 0.70%
C 4018 4018 0 0 0.00% 0.00%
D 4018 4018 46 46 1.14% 1.14%

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 13 254 8434 85.79 458 449 93.1
A 3 137 4529 43.84 458 449 93.1
A 0 226 3984 37.98 458 449 93.1
B 6 159 1076216 12332.88 449 436 87.2
B 12 1 124442 1421.62 449 436 87.2
B 0 190 24401 274.74 449 436 87.2
C 14 238 89099 858.8 437 440 103.2
C 3 233 45318 434.71 437 440 103.2
C 14 254 24970 237.61 437 440 103.2
D 8 195 342920 3224.94 442 430 106.2
D 12 218 162548 1526.53 442 430 106.2
D 10 203 44423 414.25 442 430 106.2

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