ASTROSAT CZTI

Data Quality Report

Orbit 30714

Creation date: 2024-06-27T20:18:45.596084
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/AS1A10_071T44_9000004434_30714cztM0_level2.evt modeM0/AS1A10_071T44_9000004434_30714cztM0_level2_quad_clean.evt
Size (bytes)681,324,48066,942,720
Size649.8 MB 63.8 MB
Events in quadrant A3,867,868409,348
Events in quadrant B5,358,260413,031
Events in quadrant C4,472,999383,245
Events in quadrant D6,496,818367,544

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154382
B0200972
C0174292
D0239755

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65081091.674862%
B65081041.598033%
C65082754.225569%
D65072343.596127%

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 7753 6508 46 46 0.59% 0.71%
B 7753 6508 2 2 0.03% 0.03%
C 7753 6508 72 72 0.93% 1.11%
D 7752 6507 187 187 2.41% 2.87%

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 13 366001 2051.26 899 883 178.0
A 8 192 27653 150.4 899 883 178.0
A 13 254 12455 65.01 899 883 178.0
B 6 159 1782473 10578.8 896 876 168.4
B 0 230 27210 156.37 896 876 168.4
B 6 36 22748 129.87 896 876 168.4
C 3 233 543017 2760.75 841 848 196.4
C 10 22 462861 2352.59 841 848 196.4
C 14 238 137299 694.81 841 848 196.4
D 8 195 3090528 14083.3 840 827 219.4
D 13 174 135988 616.08 840 827 219.4
D 2 250 24769 109.13 840 827 219.4

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