ASTROSAT CZTI

Data Quality Report

Orbit 14711

Creation date: 2024-06-27T16:58:46.874943
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/AS1G08_057T09_9000002174_14711cztM0_level2.evt modeM0/AS1G08_057T09_9000002174_14711cztM0_level2_quad_clean.evt
Size (bytes)340,044,48065,482,560
Size324.3 MB 62.4 MB
Events in quadrant A2,409,987409,980
Events in quadrant B2,430,659404,555
Events in quadrant C2,812,940402,055
Events in quadrant D2,286,901398,550

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107621
B0108131
C0113381
D0107381

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5252200.380807%
B5252400.761615%
C5252250.476009%
D525260.114242%

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 5528 5255 0 0 0.00% 0.00%
B 5528 5255 1 1 0.02% 0.02%
C 5528 5255 0 0 0.00% 0.00%
D 5528 5254 0 0 0.00% 0.00%

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 12 189 27289 216.36 610 599 123.4
A 1 162 14909 116.0 610 599 123.4
A 8 15 10287 78.54 610 599 123.4
B 0 85 16542 136.61 608 591 116.8
B 12 111 14271 117.16 608 591 116.8
B 0 214 13844 113.51 608 591 116.8
C 3 233 495989 3587.36 593 599 138.1
C 13 61 4210 26.15 593 599 138.1
C 3 234 3012 17.47 593 599 138.1
D 2 234 21517 147.33 592 578 142.1
D 2 120 7833 51.05 592 578 142.1
D 2 152 7743 50.42 592 578 142.1

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