ASTROSAT CZTI

Data Quality Report

Orbit 03783

Creation date: 2024-06-27T14:33:37.497455
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_248T01_9000000486_03783cztM0_level2.evt modeM0/AS1G05_248T01_9000000486_03783cztM0_level2_quad_clean.evt
Size (bytes)554,420,16093,441,600
Size528.7 MB 89.1 MB
Events in quadrant A4,080,349581,128
Events in quadrant B4,242,502583,799
Events in quadrant C4,155,613565,517
Events in quadrant D3,787,150561,134

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0174983
B0178402
C0177262
D0168832

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77321642.121055%
B77321061.370926%
C77322523.259183%
D7732961.241593%

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 8037 7734 46 46 0.57% 0.59%
B 8037 7734 12 12 0.15% 0.16%
C 8037 7734 212 212 2.64% 2.74%
D 8037 7734 44 44 0.55% 0.57%

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 265617 1432.03 893 871 184.9
A 13 251 171909 925.16 893 871 184.9
A 0 50 59982 319.74 893 871 184.9
B 15 204 531647 3012.48 907 888 176.2
B 5 200 67061 375.58 907 888 176.2
B 4 81 56523 315.77 907 888 176.2
C 2 53 734439 3647.06 861 862 201.1
C 1 16 49642 242.52 861 862 201.1
C 13 61 7338 32.2 861 862 201.1
D 8 112 131855 612.49 874 848 213.9
D 1 84 74650 345.04 874 848 213.9
D 2 14 58740 270.66 874 848 213.9

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