ASTROSAT CZTI

Data Quality Report

Orbit 32709

Creation date: 2024-06-27T20:41:05.733507
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/AS1A10_123T04_9000004726_32709cztM0_level2.evt modeM0/AS1A10_123T04_9000004726_32709cztM0_level2_quad_clean.evt
Size (bytes)468,149,76090,529,920
Size446.5 MB 86.3 MB
Events in quadrant A3,398,947589,842
Events in quadrant B2,922,916604,181
Events in quadrant C2,826,100599,773
Events in quadrant D4,655,717561,877

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137443
B0123592
C0121632
D0177792

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A55161252.266135%
B5516490.888325%
C5516681.232777%
D55163426.200145%

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 7159 5517 87 87 1.22% 1.58%
B 7159 5517 23 23 0.32% 0.42%
C 7159 5517 30 30 0.42% 0.54%
D 7159 5517 244 244 3.41% 4.42%

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 15 249 537307 4145.63 641 628 129.5
A 15 237 355184 2738.8 641 628 129.5
A 12 189 10239 74.24 641 628 129.5
B 4 251 132399 1062.57 651 638 124.0
B 0 219 64323 513.58 651 638 124.0
B 0 199 60883 485.84 651 638 124.0
C 0 10 241756 1653.62 625 629 145.8
C 6 96 44799 302.91 625 629 145.8
C 3 233 41052 277.22 625 629 145.8
D 2 249 517936 3496.8 611 596 147.9
D 2 250 390060 2632.46 611 596 147.9
D 8 195 342882 2313.57 611 596 147.9

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