ASTROSAT CZTI

Data Quality Report

Orbit 40523

Creation date: 2024-06-27T22:17:09.157454
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_070T01_9000005544_40523cztM0_level2.fits modeM0/AS1T05_070T01_9000005544_40523cztM0_level2_quad_clean.evt
Size (bytes)352,733,76094,622,400
Size336.4 MB 90.2 MB
Events in quadrant A3,111,701651,956
Events in quadrant B2,744,065661,649
Events in quadrant C2,749,035632,965
Events in quadrant D3,994,092507,697

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128253
B0121542
C0118512
D0157912

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5873170.289460%
B5873250.425677%
C587340.068108%
D587383614.234633%

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 7246 5874 5 5 0.07% 0.09%
B 7246 5874 17 17 0.23% 0.29%
C 7246 5874 0 0 0.00% 0.00%
D 7246 5874 341 341 4.71% 5.81%

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 556865 4149.56 646 631 134.0
A 2 79 14759 105.4 646 631 134.0
A 7 3 12832 91.02 646 631 134.0
B 5 32 66004 517.49 642 624 126.3
B 3 112 43902 342.55 642 624 126.3
B 0 230 42611 332.33 642 624 126.3
C 15 214 256458 1704.22 631 633 150.1
C 10 20 12287 77.63 631 633 150.1
C 0 10 9474 58.89 631 633 150.1
D 12 227 961313 6505.82 589 571 147.7
D 12 191 174219 1175.89 589 571 147.7
D 2 250 164823 1112.26 589 571 147.7

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