ASTROSAT CZTI

Data Quality Report

Orbit 03245

Creation date: 2024-06-27T14:26:40.706800
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_104T01_9000000440_03245cztM0_level2.evt modeM0/AS1G05_104T01_9000000440_03245cztM0_level2_quad_clean.evt
Size (bytes)581,915,52087,384,960
Size555.0 MB 83.3 MB
Events in quadrant A3,705,912529,273
Events in quadrant B4,474,046531,693
Events in quadrant C4,281,412526,102
Events in quadrant D4,621,152504,678

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166825
B0181914
C0183684
D0194314

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79682272.848896%
B79682342.936747%
C79682853.576807%
D79683504.392570%

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 9638 7972 20 20 0.21% 0.25%
B 9638 7972 4 4 0.04% 0.05%
C 9638 7972 67 67 0.70% 0.84%
D 9638 7972 179 179 1.86% 2.25%

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 0 118 84894 439.58 930 908 191.1
A 0 226 18017 89.55 930 908 191.1
A 0 31 14578 71.55 930 908 191.1
B 15 204 687029 3747.8 950 928 183.1
B 2 249 93084 503.4 950 928 183.1
B 5 200 16400 84.52 950 928 183.1
C 14 48 324093 1519.95 908 912 212.6
C 14 223 288700 1353.49 908 912 212.6
C 6 80 85608 398.33 908 912 212.6
D 13 114 539711 2475.79 896 867 217.6
D 13 223 523771 2402.55 896 867 217.6
D 5 233 43126 194.16 896 867 217.6

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