ASTROSAT CZTI

Data Quality Report

Orbit 54113

Creation date: 2025-09-29T04:52:20.798044
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_012T01_9000006512_54113cztM0_level2.fits modeM0/AS1A14_012T01_9000006512_54113cztM0_level2_quad_clean.evt
Size (bytes)549,233,28097,721,280
Size523.8 MB 93.2 MB
Events in quadrant A3,732,961648,845
Events in quadrant B5,420,397644,127
Events in quadrant C4,568,134587,906
Events in quadrant D6,020,358550,065

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0168853
B0217673
C0195013
D0232483

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75801321.741425%
B758078110.303430%
C75805046.649077%
D75804976.556728%

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 8032 7859 63 63 0.78% 0.80%
B 8032 7859 353 353 4.39% 4.49%
C 8032 7859 303 303 3.77% 3.86%
D 8032 7856 336 336 4.18% 4.28%

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 8 211733 1063.14 800 781 198.4
A 4 249 105890 529.72 800 781 198.4
A 15 174 78931 393.86 800 781 198.4
B 5 236 499307 3061.06 771 742 162.9
B 5 185 485864 2978.52 771 742 162.9
B 8 234 351607 2154.22 771 742 162.9
C 15 147 894547 4223.76 769 762 211.6
C 13 3 380881 1796.33 769 762 211.6
C 15 157 111940 525.39 769 762 211.6
D 2 165 799070 3645.7 768 732 219.0
D 2 172 604794 2758.52 768 732 219.0
D 8 176 392572 1789.38 768 732 219.0

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