ASTROSAT CZTI

Data Quality Report

Orbit 56323

Creation date: 2026-02-24T23:24:42.043950
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_049T01_9000006552_56323cztM0_level2.fits modeM0/AS1A14_049T01_9000006552_56323cztM0_level2_quad_clean.evt
Size (bytes)983,995,20076,158,720
Size938.4 MB 72.6 MB
Events in quadrant A9,032,150536,145
Events in quadrant B4,965,124697,412
Events in quadrant C7,592,252536,638
Events in quadrant D14,264,01123,537

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0318972
B0199320
C0279110
D0474930

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7350185525.238095%
B73505427.374150%
C7351152120.691062%
D7351713597.061624%

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 7350 7350 1635 1635 22.24% 22.24%
B 7350 7350 334 334 4.54% 4.54%
C 7351 7351 1205 1205 16.39% 16.39%
D 7350 7350 4175 4175 56.80% 56.80%

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 11 31 3039329 17219.99 703 686 176.5
A 7 64 723697 4097.3 703 686 176.5
A 0 8 707481 4005.41 703 686 176.5
B 5 172 736873 4565.18 750 722 161.3
B 0 231 533514 3304.07 750 722 161.3
B 5 185 352673 2182.6 750 722 161.3
C 15 198 3105025 16366.63 688 683 189.7
C 15 148 636917 3354.34 688 683 189.7
C 12 252 441089 2321.9 688 683 189.7
D 8 129 13465404 389770.41 116 110 34.5
D 2 249 101650 2939.21 116 110 34.5
D 6 239 67133 1940.07 116 110 34.5

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