ASTROSAT CZTI

Data Quality Report

Orbit 48592

Creation date: 2024-09-23T14:31:59.454957
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_037T01_9000006436_48592cztM0_level2.fits modeM0/AS1A13_037T01_9000006436_48592cztM0_level2_quad_clean.evt
Size (bytes)442,500,480106,079,040
Size422.0 MB 101.2 MB
Events in quadrant A6,681,443690,851
Events in quadrant B3,630,383726,299
Events in quadrant C2,733,603709,497
Events in quadrant D2,834,934636,667

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0241732
B0154552
C0130972
D0135912

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64332353.653039%
B64332213.435411%
C643370.108814%
D6433200.310897%

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 7603 6434 89 89 1.17% 1.38%
B 7603 6434 73 73 0.96% 1.13%
C 7603 6434 0 0 0.00% 0.00%
D 7603 6434 20 20 0.26% 0.31%

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 3899093 27284.33 690 674 142.9
A 13 248 52014 359.32 690 674 142.9
A 7 3 38354 263.71 690 674 142.9
B 12 16 822359 6011.01 697 674 136.7
B 0 183 28810 205.83 697 674 136.7
B 0 197 19035 134.32 697 674 136.7
C 12 250 10492 59.8 695 700 163.7
C 3 233 8069 45.01 695 700 163.7
C 13 61 4638 24.05 695 700 163.7
D 2 249 134192 785.34 681 659 170.0
D 13 171 67992 396.0 681 659 170.0
D 2 234 31458 181.13 681 659 170.0

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