ASTROSAT CZTI

Data Quality Report

Orbit 03692

Creation date: 2024-06-27T14:32:29.517898
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_009T01_9000000482_03692cztM0_level2.evt modeM0/AS1G05_009T01_9000000482_03692cztM0_level2_quad_clean.evt
Size (bytes)451,474,56079,649,280
Size430.6 MB 76.0 MB
Events in quadrant A3,094,133512,542
Events in quadrant B3,881,239508,148
Events in quadrant C2,726,730504,226
Events in quadrant D3,580,460485,271

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128642
B0155511
C0119171
D0146811

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57501352.347826%
B57501662.886957%
C5750851.478261%
D57502163.756522%

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 6895 5750 20 20 0.29% 0.35%
B 6895 5751 41 41 0.59% 0.71%
C 6895 5751 0 0 0.00% 0.00%
D 6895 5751 108 108 1.57% 1.88%

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 13 164 140318 964.32 703 687 144.8
A 13 251 86171 590.37 703 687 144.8
A 0 118 62297 425.49 703 687 144.8
B 14 167 407205 2985.39 701 683 136.2
B 15 204 373582 2738.47 701 683 136.2
B 5 172 203312 1488.05 701 683 136.2
C 2 53 52002 321.8 680 683 159.5
C 9 247 7343 41.76 680 683 159.5
C 13 61 5809 32.14 680 683 159.5
D 9 35 588518 3598.26 676 658 163.4
D 13 239 200266 1221.79 676 658 163.4
D 2 37 104934 638.27 676 658 163.4

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
Veto Counter