ASTROSAT CZTI

Data Quality Report

Orbit 36563

Creation date: 2024-06-27T21:28:25.798980
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/AS1A11_049T02_9000005220_36563cztM0_level2.evt modeM0/AS1A11_049T02_9000005220_36563cztM0_level2_quad_clean.evt
Size (bytes)437,088,96063,982,080
Size416.8 MB 61.0 MB
Events in quadrant A2,946,217399,609
Events in quadrant B3,466,603396,333
Events in quadrant C3,309,204392,706
Events in quadrant D3,153,360375,387

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118423
B0135372
C0129292
D0126632

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5332320.600150%
B53321793.357089%
C53321623.038260%
D53321021.912978%

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 7245 5333 22 22 0.30% 0.41%
B 7245 5333 110 110 1.52% 2.06%
C 7245 5333 113 113 1.56% 2.12%
D 7245 5333 52 52 0.72% 0.98%

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 201863 1504.2 672 662 133.8
A 15 223 105404 783.06 672 662 133.8
A 9 143 29139 212.9 672 662 133.8
B 5 172 487367 3925.65 658 643 124.0
B 5 255 250750 2017.23 658 643 124.0
B 0 182 35407 280.39 658 643 124.0
C 0 10 389278 2641.85 644 649 147.1
C 15 214 227613 1542.87 644 649 147.1
C 14 254 152530 1032.47 644 649 147.1
D 2 250 236858 1494.36 650 633 158.1
D 2 137 88075 553.16 650 633 158.1
D 2 153 72342 453.63 650 633 158.1

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