ASTROSAT CZTI

Data Quality Report

Orbit 10596

Creation date: 2024-06-27T16:01:16.883289
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/AS1T01_191T01_9000001536_10596cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10596cztM0_level2_quad_clean.evt
Size (bytes)494,337,60080,657,280
Size471.4 MB 76.9 MB
Events in quadrant A3,037,686511,104
Events in quadrant B4,626,575495,545
Events in quadrant C3,003,859516,759
Events in quadrant D3,876,524480,267

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129913
B0178192
C0129332
D0157252

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6280350.557325%
B62804947.866242%
C6280250.398089%
D6280781.242038%

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 7540 6281 0 0 0.00% 0.00%
B 7540 6281 239 239 3.17% 3.81%
C 7540 6281 0 0 0.00% 0.00%
D 7540 6281 24 24 0.32% 0.38%

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 0 226 7129 39.63 785 771 160.4
A 1 162 6915 38.3 785 771 160.4
A 12 194 6230 34.03 785 771 160.4
B 4 239 1488382 10308.7 772 759 144.3
B 0 214 47610 324.66 772 759 144.3
B 11 51 23253 155.88 772 759 144.3
C 1 0 6006 29.85 766 775 175.3
C 13 61 5726 28.25 766 775 175.3
C 12 4 3845 17.52 766 775 175.3
D 8 195 416422 2311.5 751 734 179.8
D 2 16 342894 1902.63 751 734 179.8
D 5 222 155510 860.66 751 734 179.8

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