ASTROSAT CZTI

Data Quality Report

Orbit 03226

Creation date: 2024-06-27T14:26:03.641477
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_221T01_9000000438_03226cztM0_level2.evt modeM0/AS1G05_221T01_9000000438_03226cztM0_level2_quad_clean.evt
Size (bytes)485,084,16089,847,360
Size462.6 MB 85.7 MB
Events in quadrant A4,242,965556,610
Events in quadrant B3,603,602584,001
Events in quadrant C3,117,432576,866
Events in quadrant D3,283,227547,873

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0167872
B0151301
C0136171
D0144551

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65323875.924679%
B6532661.010410%
C6532300.459277%
D6532400.612370%

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 7742 6532 299 299 3.86% 4.58%
B 7742 6532 23 23 0.30% 0.35%
C 7742 6532 10 10 0.13% 0.15%
D 7742 6533 38 38 0.49% 0.58%

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 0 199 916994 6026.45 738 723 152.0
A 0 118 266419 1747.52 738 723 152.0
A 0 226 120721 789.25 738 723 152.0
B 15 204 339095 2293.22 781 766 147.5
B 5 200 151173 1019.47 781 766 147.5
B 2 249 61501 411.67 781 766 147.5
C 14 223 67986 384.1 749 755 175.0
C 6 80 61512 347.12 749 755 175.0
C 1 192 27344 151.91 749 755 175.0
D 13 223 166793 930.1 734 716 178.6
D 13 120 156069 870.04 734 716 178.6
D 13 239 89981 499.92 734 716 178.6

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