ASTROSAT CZTI

Data Quality Report

Orbit 34310

Creation date: 2024-06-27T20:58:58.591387
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/AS1A11_091T01_9000004894_34310cztM0_level2.evt modeM0/AS1A11_091T01_9000004894_34310cztM0_level2_quad_clean.evt
Size (bytes)504,472,32074,315,520
Size481.1 MB 70.9 MB
Events in quadrant A2,614,631467,974
Events in quadrant B4,044,862474,349
Events in quadrant C2,899,263472,063
Events in quadrant D5,332,576436,821

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01168810
B01592311
C01214811
D01989776

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0360

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5708130.227751%
B57091953.415659%
C5707340.595760%
D56983796.651457%

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 9267 5714 9 9 0.10% 0.16%
B 9267 5714 117 117 1.26% 2.05%
C 9267 5714 22 22 0.24% 0.39%
D 9267 5713 339 339 3.66% 5.93%

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 9 191 56609 433.3 649 638 129.2
A 10 83 27861 210.75 649 638 129.2
A 13 6 15063 111.67 649 638 129.2
B 5 31 649187 5314.18 642 626 122.0
B 5 172 374074 3059.96 642 626 122.0
B 5 15 143748 1172.71 642 626 122.0
C 15 214 242766 1668.03 631 637 145.2
C 0 10 128512 880.93 631 637 145.2
C 14 67 26869 180.71 631 637 145.2
D 10 118 735089 4448.89 610 597 165.1
D 12 235 693020 4194.07 610 597 165.1
D 8 195 635373 3844.9 610 597 165.1

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