ASTROSAT CZTI

Data Quality Report

Orbit 53193

Creation date: 2025-07-29T05:44:53.460020
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/AS1C09_011T06_9000006490_53193cztM0_level2.fits modeM0/AS1C09_011T06_9000006490_53193cztM0_level2_quad_clean.evt
Size (bytes)805,029,12075,723,840
Size767.7 MB 72.2 MB
Events in quadrant A3,255,311615,939
Events in quadrant B2,915,876666,223
Events in quadrant C7,118,700513,612
Events in quadrant D16,024,38360,485

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143551
B0132741
C0255291
D0519091

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6256661.054987%
B6257320.511427%
C6257108217.292632%
D6257571091.257791%

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 7452 6257 67 67 0.90% 1.07%
B 7453 6257 12 12 0.16% 0.19%
C 7453 6258 1027 1027 13.78% 16.41%
D 7452 6256 5839 5839 78.35% 93.33%

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 7 206 149555 915.63 651 635 162.6
A 15 174 95026 580.36 651 635 162.6
A 3 62 94487 577.05 651 635 162.6
B 10 247 57990 413.39 653 629 138.8
B 10 254 46729 332.24 653 629 138.8
B 7 252 45506 323.42 653 629 138.8
C 15 224 1857256 11110.99 601 597 167.1
C 1 241 1434736 8582.46 601 597 167.1
C 10 22 597196 3570.29 601 597 167.1
D 15 125 13848575 164248.28 284 270 84.3
D 2 249 211561 2506.02 284 270 84.3
D 12 3 166025 1965.94 284 270 84.3

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