ASTROSAT CZTI

Data Quality Report

Orbit 22405

Creation date: 2024-06-27T18:40:33.238899
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/AS1T03_156T01_9000003312_22405cztM0_level2.evt modeM0/AS1T03_156T01_9000003312_22405cztM0_level2_quad_clean.evt
Size (bytes)438,658,560100,128,960
Size418.3 MB 95.5 MB
Events in quadrant A3,119,815661,059
Events in quadrant B3,268,361671,948
Events in quadrant C3,199,301641,520
Events in quadrant D3,273,176622,259

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133772
B0137162
C0135092
D0138562

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6237400.641334%
B6237681.090268%
C6237861.378868%
D6237430.689434%

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 7507 6238 1 1 0.01% 0.02%
B 7507 6238 20 20 0.27% 0.32%
C 7507 6238 0 0 0.00% 0.00%
D 7507 6238 16 16 0.21% 0.26%

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 9449 53.86 806 792 160.7
A 3 1 8495 47.92 806 792 160.7
A 0 226 7097 39.22 806 792 160.7
B 3 64 89500 599.65 803 785 147.9
B 12 111 17162 110.7 803 785 147.9
B 11 111 14982 95.96 803 785 147.9
C 14 238 124631 680.67 784 791 181.9
C 10 22 10402 52.82 784 791 181.9
C 0 10 9591 48.37 784 791 181.9
D 7 223 92158 481.02 789 766 190.0
D 12 227 68608 357.07 789 766 190.0
D 1 52 50891 263.82 789 766 190.0

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