ASTROSAT CZTI

Data Quality Report

Orbit 03023

Creation date: 2024-06-27T14:23:33.901950
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/AS1G05_238T02_9000000420_03023cztM0_level2.evt modeM0/AS1G05_238T02_9000000420_03023cztM0_level2_quad_clean.evt
Size (bytes)392,932,80048,988,800
Size374.7 MB 46.7 MB
Events in quadrant A3,057,585284,495
Events in quadrant B2,807,930285,033
Events in quadrant C2,922,300273,960
Events in quadrant D2,752,201268,598

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126003
B0115812
C0123132
D0118202

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5301200.377287%
B5301330.622524%
C53011061.999623%
D5301721.358234%

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 9612 5303 7 7 0.07% 0.13%
B 9612 5303 27 27 0.28% 0.51%
C 9612 5303 105 105 1.09% 1.98%
D 9612 5303 55 55 0.57% 1.04%

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 8 15 562698 4524.66 615 605 124.2
A 0 50 93320 746.33 615 605 124.2
A 13 14 11058 84.14 615 605 124.2
B 0 230 112732 955.54 622 609 117.3
B 2 249 91313 773.0 622 609 117.3
B 15 204 86807 734.6 622 609 117.3
C 1 192 493196 3612.63 588 591 136.4
C 6 80 96436 702.9 588 591 136.4
C 15 208 13192 92.41 588 591 136.4
D 7 80 237809 1697.78 586 572 139.7
D 13 114 136736 974.46 586 572 139.7
D 15 35 47975 339.24 586 572 139.7

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
Veto Counter