ASTROSAT CZTI

Data Quality Report

Orbit 40112

Creation date: 2024-06-27T22:12:28.678573
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/AS1A12_004T01_9000005520_40112cztM0_level2.fits modeM0/AS1A12_004T01_9000005520_40112cztM0_level2_quad_clean.evt
Size (bytes)351,270,72089,323,200
Size335.0 MB 85.2 MB
Events in quadrant A2,935,171603,530
Events in quadrant B2,353,081634,204
Events in quadrant C3,815,586595,328
Events in quadrant D3,511,209523,088

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119433
B0101942
C0146272
D0139392

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4979150.301265%
B497940.080337%
C49791633.273750%
D49793416.848765%

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 7011 4980 9 9 0.13% 0.18%
B 7011 4980 0 0 0.00% 0.00%
C 7011 4980 165 165 2.35% 3.31%
D 7011 4980 296 296 4.22% 5.94%

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 10 83 432507 3774.69 565 553 114.4
A 12 189 235873 2056.38 565 553 114.4
A 2 79 61853 535.68 565 553 114.4
B 0 189 44558 397.19 571 557 110.8
B 4 171 33828 300.33 571 557 110.8
B 0 230 23799 209.8 571 557 110.8
C 9 187 1342579 10404.83 556 562 129.0
C 15 214 206955 1600.19 556 562 129.0
C 0 10 50260 385.32 556 562 129.0
D 2 249 857687 6484.24 539 526 132.2
D 13 249 180896 1364.46 539 526 132.2
D 5 32 110788 834.11 539 526 132.2

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