ASTROSAT CZTI

Data Quality Report

Orbit 06038

Creation date: 2024-06-27T15:02:03.093158
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/AS1A02_090T01_9000000778_06038cztM0_level2.evt modeM0/AS1A02_090T01_9000000778_06038cztM0_level2_quad_clean.evt
Size (bytes)554,503,68098,006,400
Size528.8 MB 93.5 MB
Events in quadrant A6,015,370617,589
Events in quadrant B3,985,435640,347
Events in quadrant C3,143,218630,794
Events in quadrant D3,178,630595,826

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0226302
B0164548
C0142053
D0144365

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69382273.271836%
B69373124.497621%
C6937120.172985%
D6936280.403691%

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 7723 6939 67 67 0.87% 0.97%
B 7723 6938 216 216 2.80% 3.11%
C 7723 6939 0 0 0.00% 0.00%
D 7723 6939 18 18 0.23% 0.26%

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 13 34 2782875 16526.74 815 799 168.3
A 8 15 55729 326.31 815 799 168.3
A 4 2 20591 117.57 815 799 168.3
B 3 64 776710 4946.53 815 798 156.9
B 15 204 32502 202.12 815 798 156.9
B 12 111 15024 90.69 815 798 156.9
C 1 16 22533 116.75 798 807 186.1
C 13 61 6389 30.0 798 807 186.1
C 8 79 4054 17.45 798 807 186.1
D 2 33 62827 315.87 792 769 196.5
D 8 195 58520 293.94 792 769 196.5
D 2 16 39606 197.67 792 769 196.5

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