ASTROSAT CZTI

Data Quality Report

Orbit 59324

Creation date: 2026-09-14T18:21:22.464354
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/AS1A14_021T06_9000006606_59324cztM0_level2.fits modeM0/AS1A14_021T06_9000006606_59324cztM0_level2_quad_clean.evt
Size (bytes)446,460,480100,327,680
Size425.8 MB 95.7 MB
Events in quadrant A3,405,931678,124
Events in quadrant B5,800,269645,512
Events in quadrant C3,535,258634,904
Events in quadrant D3,252,322602,807

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149922
B0220452
C0154962
D0146332

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68411331.944160%
B6841106715.597135%
C68411321.929542%
D6841751.096331%

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 7861 6842 82 82 1.04% 1.20%
B 7861 6841 794 794 10.10% 11.61%
C 7861 6842 86 86 1.09% 1.26%
D 7861 6842 24 24 0.31% 0.35%

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 15 233 367983 1966.1 754 734 186.8
A 7 64 36304 190.43 754 734 186.8
A 10 251 24829 128.99 754 734 186.8
B 4 236 2596021 17245.39 705 680 150.5
B 4 201 180021 1191.68 705 680 150.5
B 5 185 49457 324.11 705 680 150.5
C 6 13 213256 1083.58 723 714 196.1
C 4 5 148130 751.55 723 714 196.1
C 14 254 128073 649.3 723 714 196.1
D 11 129 148596 727.76 725 693 203.2
D 2 249 121404 593.96 725 693 203.2
D 5 173 41089 198.77 725 693 203.2

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

TCT plots

Parameter TCT0 TCT_healed
Tct