ASTROSAT CZTI

Data Quality Report

Orbit 59296

Creation date: 2026-09-12T21:24:38.733168
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_59296cztM0_level2.fits modeM0/AS1A14_021T06_9000006606_59296cztM0_level2_quad_clean.evt
Size (bytes)658,964,16071,985,600
Size628.4 MB 68.7 MB
Events in quadrant A2,885,966584,115
Events in quadrant B5,377,196533,612
Events in quadrant C2,915,362543,010
Events in quadrant D12,770,097119,774

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123851
B0198701
C0128561
D0417463

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5709621.086005%
B5710107518.826620%
C57101131.978984%
D5709463081.100018%

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 6844 5709 18 18 0.26% 0.32%
B 6845 5710 909 909 13.28% 15.92%
C 6845 5710 65 65 0.95% 1.14%
D 6843 5708 4387 4387 64.11% 76.86%

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 8 206 127979 823.91 626 611 154.6
A 7 64 103768 667.3 626 611 154.6
A 3 14 103632 666.42 626 611 154.6
B 4 236 2756047 22465.57 574 553 122.7
B 10 247 107288 870.21 574 553 122.7
B 5 236 79370 642.6 574 553 122.7
C 15 147 152904 912.77 607 600 166.9
C 12 252 137553 820.77 607 600 166.9
C 14 96 101184 602.81 607 600 166.9
D 12 110 6910801 65679.36 365 347 105.2
D 11 129 3457058 32853.78 365 347 105.2
D 12 2 806368 7660.7 365 347 105.2

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