ASTROSAT CZTI

Data Quality Report

Orbit 10610

Creation date: 2024-06-27T16:01:27.200439
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_10610cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10610cztM0_level2_quad_clean.evt
Size (bytes)472,052,16083,459,520
Size450.2 MB 79.6 MB
Events in quadrant A2,923,867540,063
Events in quadrant B4,492,881519,390
Events in quadrant C2,848,149543,679
Events in quadrant D3,622,913503,913

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124362
B0172311
C0122611
D0146961

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6015110.182876%
B60154727.847049%
C601550.083126%
D6015100.166251%

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 7375 6016 0 0 0.00% 0.00%
B 7375 6016 301 301 4.08% 5.00%
C 7375 6016 0 0 0.00% 0.00%
D 7375 6016 6 6 0.08% 0.10%

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 16976 106.37 747 734 152.7
A 11 29 9182 55.33 747 734 152.7
A 0 226 6774 39.56 747 734 152.7
B 4 239 1412364 10195.73 732 718 138.5
B 0 219 93765 672.04 732 718 138.5
B 0 214 41590 295.2 732 718 138.5
C 13 61 5430 28.23 727 734 166.4
C 14 234 4868 24.85 727 734 166.4
C 4 175 3148 14.51 727 734 166.4
D 8 195 370147 2152.13 713 696 171.7
D 2 16 260357 1512.58 713 696 171.7
D 1 52 158969 921.97 713 696 171.7

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