ASTROSAT CZTI

Data Quality Report

Orbit 30186

Creation date: 2024-06-27T20:12:00.139705
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/AS1A10_050T05_9000004342_30186cztM0_level2.evt modeM0/AS1A10_050T05_9000004342_30186cztM0_level2_quad_clean.evt
Size (bytes)459,267,84044,354,880
Size438.0 MB 42.3 MB
Events in quadrant A1,728,165306,323
Events in quadrant B2,636,835303,611
Events in quadrant C6,907,265194,903
Events in quadrant D2,405,777296,273

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A072791
B0104521
C0228571
D093751

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0700
B0700
C0700
D0700

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A33921795.277123%
B33912427.136538%
C3391263077.558242%
D33912427.136538%

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 3592 3392 0 0 0.00% 0.00%
B 3591 3391 1 1 0.03% 0.03%
C 3591 3391 1915 1915 53.33% 56.47%
D 3591 3392 81 81 2.26% 2.39%

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 8 192 9635 99.73 445 432 92.3
A 13 254 5821 58.4 445 432 92.3
A 3 137 4793 47.26 445 432 92.3
B 6 159 922648 10538.57 432 420 87.5
B 0 190 11386 125.31 432 420 87.5
B 12 111 11112 122.18 432 420 87.5
C 3 233 5563983 69686.78 330 332 79.8
C 14 238 49047 610.17 330 332 79.8
C 2 114 6538 77.73 330 332 79.8
D 1 52 425777 3941.61 431 420 107.9
D 8 195 113591 1048.71 431 420 107.9
D 2 250 92713 855.24 431 420 107.9

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