ASTROSAT CZTI

Data Quality Report

Orbit 34367

Creation date: 2022-02-05T05:24:11.992506
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/AS1A05_019T01_9000004906_34367cztM0_level2.evt modeM0/AS1A05_019T01_9000004906_34367cztM0_level2_quad_clean.evt
Size (bytes)681,045,12054,800,640
Size649.5 MB 52.3 MB
Events in quadrant A2,340,169365,565
Events in quadrant B4,412,141348,733
Events in quadrant C3,328,494355,389
Events in quadrant D10,200,638231,297

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0103353
B0164972
C0131752
D0337772

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A509460.117786%
B50944769.344327%
C5094561.099333%
D5094300659.010601%

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 7007 5095 0 0 0.00% 0.00%
B 7007 5095 281 281 4.01% 5.52%
C 7007 5095 43 43 0.61% 0.84%
D 7007 5094 3145 3145 44.88% 61.74%

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 31625 260.37 591 579 119.2
A 13 6 10252 81.12 591 579 119.2
A 13 254 9043 70.98 591 579 119.2
B 4 171 971104 8805.01 572 559 110.2
B 5 172 866806 7858.8 572 559 110.2
B 5 31 186695 1688.67 572 559 110.2
C 4 254 707713 5246.95 577 582 134.8
C 15 214 213886 1582.73 577 582 134.8
C 0 10 97686 720.52 577 582 134.8
D 7 223 7249521 59834.04 448 440 121.2
D 8 195 620960 5121.78 448 440 121.2
D 13 249 224073 1845.87 448 440 121.2

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