ASTROSAT CZTI

Data Quality Report

Orbit 56193

Creation date: 2026-02-16T04:57:25.848398
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_083T04_9000006550_56193cztM0_level2.fits modeM0/AS1A14_083T04_9000006550_56193cztM0_level2_quad_clean.evt
Size (bytes)876,202,56080,542,080
Size835.6 MB 76.8 MB
Events in quadrant A12,533,876374,399
Events in quadrant B4,679,643635,519
Events in quadrant C8,338,297429,494
Events in quadrant D6,294,966470,233

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0424310
B0191890
C0301750
D0241121

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7593332643.803503%
B75942062.712668%
C7594188124.769555%
D75936238.204926%

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 7871 7869 2916 2916 37.05% 37.06%
B 7872 7872 97 97 1.23% 1.23%
C 7872 7692 1431 1431 18.18% 18.60%
D 7871 7839 581 581 7.38% 7.41%

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 32 5986574 37786.58 628 611 158.4
A 8 176 1452698 9166.34 628 611 158.4
A 7 64 1415138 8929.25 628 611 158.4
B 5 185 397189 2352.4 782 754 168.5
B 0 213 375922 2226.21 782 754 168.5
B 0 171 191518 1131.97 782 754 168.5
C 12 254 5215560 27774.47 670 664 187.8
C 12 252 292530 1554.47 670 664 187.8
C 6 223 50201 263.83 670 664 187.8
D 6 239 1007726 4847.85 732 699 207.7
D 11 129 502495 2415.66 732 699 207.7
D 8 129 330810 1589.16 732 699 207.7

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