ASTROSAT CZTI

Data Quality Report

Orbit 59083

Creation date: 2026-08-29T14:20:16.218864
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_004T02_9000006600_59083cztM0_level2.fits modeM0/AS1A14_004T02_9000006600_59083cztM0_level2_quad_clean.evt
Size (bytes)1,011,608,64091,814,400
Size964.7 MB 87.6 MB
Events in quadrant A4,980,754759,001
Events in quadrant B6,984,163750,760
Events in quadrant C4,400,217702,254
Events in quadrant D20,479,12827,215

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200761
B0260751
C0185741
D0659421

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77722563.293875%
B777391611.784382%
C77733554.567091%
D7773753196.886659%

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 7772 7772 95 95 1.22% 1.22%
B 7773 7773 479 479 6.16% 6.16%
C 7773 7773 179 179 2.30% 2.30%
D 7772 7772 7487 7487 96.33% 96.33%

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 24 1056929 4843.42 883 859 218.0
A 13 248 210895 963.28 883 859 218.0
A 3 14 82372 373.84 883 859 218.0
B 10 128 2631178 14519.47 851 817 181.2
B 5 236 507788 2798.46 851 817 181.2
B 4 236 135894 745.62 851 817 181.2
C 15 198 655860 2858.39 838 830 229.2
C 4 5 230563 1002.5 838 830 229.2
C 6 223 106408 460.72 838 830 229.2
D 12 1 17316275 276787.07 210 200 62.6
D 2 62 1613034 25780.18 210 200 62.6
D 2 207 349757 5587.46 210 200 62.6

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

TCT plots

Parameter TCT0 TCT_healed
Tct