ASTROSAT CZTI

Data Quality Report

Orbit 23107

Creation date: 2024-06-27T18:50:01.276663
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/AS1A07_138T05_9000003410_23107cztM0_level2.evt modeM0/AS1A07_138T05_9000003410_23107cztM0_level2_quad_clean.evt
Size (bytes)574,911,36098,470,080
Size548.3 MB 93.9 MB
Events in quadrant A5,892,215599,628
Events in quadrant B3,563,901644,220
Events in quadrant C3,453,736618,360
Events in quadrant D4,001,874607,438

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0223321
B0154341
C0151421
D0169861

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A735788912.083730%
B73581091.481381%
C73581151.562925%
D7358751.019299%

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 7592 7358 690 690 9.09% 9.38%
B 7593 7359 21 21 0.28% 0.29%
C 7593 7359 2 2 0.03% 0.03%
D 7593 7359 15 15 0.20% 0.20%

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 6 16 2684684 15856.28 832 814 169.3
A 13 254 10064 54.65 832 814 169.3
A 3 137 7336 38.53 832 814 169.3
B 0 189 86380 503.06 868 847 170.0
B 0 190 43456 250.61 868 847 170.0
B 12 111 21110 119.18 868 847 170.0
C 14 238 132151 664.87 837 842 197.5
C 2 16 17508 84.39 837 842 197.5
C 0 207 14415 68.73 837 842 197.5
D 7 238 335910 1603.46 849 825 209.0
D 1 52 189724 903.93 849 825 209.0
D 13 153 93755 444.69 849 825 209.0

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