ASTROSAT CZTI

Data Quality Report

Orbit 43159

Creation date: 2024-06-27T22:48:46.759418
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/AS1C07_001T10_9000005856_43159cztM0_level2.fits modeM0/AS1C07_001T10_9000005856_43159cztM0_level2_quad_clean.evt
Size (bytes)337,766,40089,568,000
Size322.1 MB 85.4 MB
Events in quadrant A3,516,150596,618
Events in quadrant B2,527,552620,035
Events in quadrant C2,498,115576,452
Events in quadrant D3,528,685530,631

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138632
B0114042
C0111893
D0144522

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A55521763.170029%
B555230.054035%
C555090.162162%
D55512023.638984%

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 7135 5553 106 106 1.49% 1.91%
B 7135 5553 2 2 0.03% 0.04%
C 7134 5552 2 2 0.03% 0.04%
D 7134 5552 182 182 2.55% 3.28%

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 620918 5187.88 580 568 119.6
A 15 237 412594 3445.71 580 568 119.6
A 15 222 139393 1160.97 580 568 119.6
B 0 229 123790 1091.86 582 566 112.9
B 0 189 51599 452.19 582 566 112.9
B 5 255 31411 273.31 582 566 112.9
C 15 214 245332 1849.11 566 569 132.4
C 14 254 34423 255.76 566 569 132.4
C 4 254 6388 43.96 566 569 132.4
D 12 16 605975 4386.26 565 549 138.0
D 1 52 440710 3188.93 565 549 138.0
D 13 249 99899 719.78 565 549 138.0

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