ASTROSAT CZTI

Data Quality Report

Orbit 46416

Creation date: 2024-06-27T23:22:56.868901
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/AS1A13_033T03_9000006206_46416cztM0_level2.fits modeM0/AS1A13_033T03_9000006206_46416cztM0_level2_quad_clean.evt
Size (bytes)474,310,080118,065,600
Size452.3 MB 112.6 MB
Events in quadrant A6,168,732786,895
Events in quadrant B3,330,923829,648
Events in quadrant C3,457,555788,627
Events in quadrant D4,083,546705,958

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0222974
B0140032
C0145032
D0165782

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66552674.012021%
B66551482.223892%
C66551031.547708%
D66553645.469572%

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 7825 6655 15 15 0.19% 0.23%
B 7825 6655 3 3 0.04% 0.05%
C 7825 6656 24 24 0.31% 0.36%
D 7825 6656 261 261 3.34% 3.92%

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 10 83 3005703 17909.64 816 799 167.8
A 13 254 11598 64.36 816 799 167.8
A 13 248 10936 60.42 816 799 167.8
B 0 197 36615 221.31 818 796 161.8
B 0 245 25599 153.25 818 796 161.8
B 12 111 20599 122.36 818 796 161.8
C 1 3 160292 848.78 800 806 187.9
C 14 254 87661 462.24 800 806 187.9
C 3 233 66630 350.31 800 806 187.9
D 2 37 676892 3418.79 797 774 197.8
D 13 249 287186 1448.24 797 774 197.8
D 2 249 57772 288.21 797 774 197.8

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