ASTROSAT CZTI

Data Quality Report

Orbit 05164

Creation date: 2024-06-27T14:52:09.766181
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/AS1G05_214T01_9000000652_05164cztM0_level2.evt modeM0/AS1G05_214T01_9000000652_05164cztM0_level2_quad_clean.evt
Size (bytes)435,438,72071,910,720
Size415.3 MB 68.6 MB
Events in quadrant A2,957,974438,834
Events in quadrant B3,150,992444,010
Events in quadrant C2,872,697444,622
Events in quadrant D3,772,101405,062

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131633
B0134952
C0129052
D0158562

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6372310.486503%
B6372360.564972%
C6372190.298180%
D63732684.205241%

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 7477 6373 5 5 0.07% 0.08%
B 7477 6373 5 5 0.07% 0.08%
C 7477 6373 0 0 0.00% 0.00%
D 7478 6374 200 200 2.67% 3.14%

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 0 50 69466 450.56 744 727 152.6
A 4 2 23919 152.02 744 727 152.6
A 12 194 7433 43.96 744 727 152.6
B 4 48 96410 657.41 757 737 145.5
B 4 80 60148 408.24 757 737 145.5
B 0 219 27483 183.78 757 737 145.5
C 1 16 26664 152.15 729 734 170.4
C 13 61 5892 30.27 729 734 170.4
C 0 207 2517 10.46 729 734 170.4
D 2 33 739469 4237.81 710 689 174.3
D 12 233 109798 625.87 710 689 174.3
D 13 53 79882 454.27 710 689 174.3

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