ASTROSAT CZTI

Data Quality Report

Orbit 54111

Creation date: 2025-09-29T02:07:14.801628
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_54111cztM0_level2.fits modeM0/AS1A14_012T01_9000006512_54111cztM0_level2_quad_clean.evt
Size (bytes)397,658,88091,782,720
Size379.2 MB 87.5 MB
Events in quadrant A2,805,990606,089
Events in quadrant B4,616,927622,271
Events in quadrant C2,987,247579,074
Events in quadrant D3,828,072539,520

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130531
B0180942
C0135191
D0157041

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6193520.839658%
B61924246.847545%
C6193791.275634%
D6193691.114161%

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 7278 6194 23 23 0.32% 0.37%
B 7277 6193 255 255 3.50% 4.12%
C 7278 6194 46 46 0.63% 0.74%
D 7278 6194 31 31 0.43% 0.50%

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 4 249 87292 534.95 651 636 162.0
A 15 174 55888 341.08 651 636 162.0
A 12 17 34692 210.24 651 636 162.0
B 5 236 1017162 7563.71 633 611 134.4
B 15 20 290431 2156.42 633 611 134.4
B 0 213 276017 2049.17 633 611 134.4
C 1 241 114408 644.29 641 631 176.6
C 15 147 100296 564.37 641 631 176.6
C 15 157 54502 305.05 641 631 176.6
D 2 172 713364 3938.08 635 607 181.0
D 2 153 202164 1113.63 635 607 181.0
D 8 176 104958 576.55 635 607 181.0

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