ASTROSAT CZTI

Data Quality Report

Orbit 37367

Creation date: 2024-06-27T21:39:06.122213
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/AS1T05_048T01_9000005318_37367cztM0_level2.evt modeM0/AS1T05_048T01_9000005318_37367cztM0_level2_quad_clean.evt
Size (bytes)671,742,72078,753,600
Size640.6 MB 75.1 MB
Events in quadrant A2,969,247522,424
Events in quadrant B3,223,246526,908
Events in quadrant C3,129,989529,702
Events in quadrant D10,618,820388,791

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125843
B0134762
C0130002
D0356872

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A594980.134476%
B59491121.882669%
C5949520.874096%
D5949253842.662632%

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 7261 5950 5 5 0.07% 0.08%
B 7261 5950 67 67 0.92% 1.13%
C 7261 5950 40 40 0.55% 0.67%
D 7261 5950 2787 2787 38.38% 46.84%

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 308169 2249.71 672 660 136.7
A 13 6 20418 144.55 672 660 136.7
A 9 143 16952 119.19 672 660 136.7
B 5 172 223610 1727.98 662 645 129.0
B 5 255 142137 1096.56 662 645 129.0
B 4 171 108989 839.66 662 645 129.0
C 15 214 249596 1648.15 649 655 151.0
C 15 208 220154 1453.23 649 655 151.0
C 0 10 56462 369.48 649 655 151.0
D 12 235 6367080 44075.44 577 560 144.4
D 12 227 1144264 7917.87 577 560 144.4
D 12 17 503989 3485.24 577 560 144.4

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