ASTROSAT CZTI

Data Quality Report

Orbit 16354

Creation date: 2024-06-27T17:21:28.041731
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/AS1A05_069T02_9000002414_16354cztM0_level2.evt modeM0/AS1A05_069T02_9000002414_16354cztM0_level2_quad_clean.evt
Size (bytes)490,985,28086,898,240
Size468.2 MB 82.9 MB
Events in quadrant A3,164,407561,774
Events in quadrant B3,519,470576,172
Events in quadrant C3,228,385543,078
Events in quadrant D4,524,386505,369

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133763
B0144642
C0135072
D0177942

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6378260.407651%
B6378701.097523%
C6378590.925055%
D63782764.327375%

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 8809 6381 0 0 0.00% 0.00%
B 8809 6381 8 8 0.09% 0.13%
C 8809 6381 0 0 0.00% 0.00%
D 8809 6381 225 225 2.55% 3.53%

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 15 174 18670 109.13 814 798 163.8
A 15 223 8648 47.93 814 798 163.8
A 3 1 8167 45.0 814 798 163.8
B 15 35 128185 826.52 823 803 154.1
B 0 189 44431 283.08 823 803 154.1
B 0 219 37832 240.26 823 803 154.1
C 14 238 122906 673.03 785 792 181.4
C 3 233 30999 166.49 785 792 181.4
C 0 207 9499 47.99 785 792 181.4
D 12 218 1119406 5959.82 769 748 187.7
D 1 52 371426 1974.84 769 748 187.7
D 12 250 34691 180.84 769 748 187.7

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter