ASTROSAT CZTI

Data Quality Report

Orbit 03202

Creation date: 2024-06-27T14:26:12.565888
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_233T10_9000000438_03202cztM0_level2.evt modeM0/AS1G05_233T10_9000000438_03202cztM0_level2_quad_clean.evt
Size (bytes)861,094,08074,229,120
Size821.2 MB 70.8 MB
Events in quadrant A3,382,485475,602
Events in quadrant B3,768,529473,578
Events in quadrant C14,499,270361,893
Events in quadrant D3,963,767456,100

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154443
B0159322
C0481592
D0170022

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73672393.244197%
B73672313.135605%
C7367389152.816615%
D73672913.950048%

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 8652 7368 4 4 0.05% 0.05%
B 8652 7367 0 0 0.00% 0.00%
C 8651 7366 3788 3788 43.79% 51.43%
D 8652 7368 41 41 0.47% 0.56%

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 8 15 48578 275.4 847 826 173.4
A 0 118 35378 199.27 847 826 173.4
A 0 226 13214 71.44 847 826 173.4
B 15 204 223691 1334.36 863 839 167.0
B 4 80 154102 917.69 863 839 167.0
B 3 0 25730 149.04 863 839 167.0
C 12 206 11414269 72356.96 684 685 157.7
C 14 223 301812 1909.01 684 685 157.7
C 1 192 70416 442.06 684 685 157.7
D 13 114 322274 1615.05 821 795 199.1
D 13 223 203390 1017.8 821 795 199.1
D 13 239 109201 544.61 821 795 199.1

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