ASTROSAT CZTI

Data Quality Report

Orbit 46117

Creation date: 2024-06-27T23:19:26.294220
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/AS1A13_092T04_9000006172_46117cztM0_level2.fits modeM0/AS1A13_092T04_9000006172_46117cztM0_level2_quad_clean.evt
Size (bytes)750,983,040113,140,800
Size716.2 MB 107.9 MB
Events in quadrant A6,690,311817,618
Events in quadrant B4,024,600844,584
Events in quadrant C4,182,883791,488
Events in quadrant D12,296,745429,729

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0247230
B0172360
C0179820
D0418361

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77971071.372323%
B77981041.333675%
C77982322.975122%
D7797361346.338335%

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 7797 7797 58 58 0.74% 0.74%
B 7798 7798 45 45 0.58% 0.58%
C 7798 7798 180 180 2.31% 2.31%
D 7797 7796 2959 2959 37.95% 37.96%

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 3005213 16288.35 877 857 184.4
A 15 14 149237 804.45 877 857 184.4
A 9 191 76199 408.47 877 857 184.4
B 12 16 249508 1400.1 879 850 177.6
B 3 112 121608 679.94 879 850 177.6
B 0 190 87826 489.73 879 850 177.6
C 14 254 727581 3565.76 858 864 203.8
C 3 9 57089 275.88 858 864 203.8
C 2 14 32751 156.46 858 864 203.8
D 2 37 6851866 40245.83 667 646 170.2
D 1 52 1612110 9466.15 667 646 170.2
D 13 249 704844 4136.64 667 646 170.2

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