ASTROSAT CZTI

Data Quality Report

Orbit 32414

Creation date: 2024-06-27T20:39:57.603390
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/AS1T04_059T01_9000004704_32414cztM0_level2.evt modeM0/AS1T04_059T01_9000004704_32414cztM0_level2_quad_clean.evt
Size (bytes)1,108,935,36069,514,560
Size1.0 GB 66.3 MB
Events in quadrant A3,495,632500,546
Events in quadrant B6,571,078494,100
Events in quadrant C17,433,984133,039
Events in quadrant D5,587,579462,443

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152752
B0249151
C0568841
D0215901

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73721221.654910%
B73723674.978296%
C7372644787.452523%
D73724215.710798%

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 7517 7374 2 2 0.03% 0.03%
B 7517 7374 63 63 0.84% 0.85%
C 7517 7372 5811 5811 77.30% 78.83%
D 7517 7374 270 270 3.59% 3.66%

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 13 254 13828 71.21 899 878 181.9
A 13 6 10661 53.8 899 878 181.9
A 3 137 9518 47.51 899 878 181.9
B 6 159 2036078 12058.12 885 862 168.8
B 4 80 888885 5261.3 885 862 168.8
B 0 190 45788 266.17 885 862 168.8
C 3 233 16243321 241295.01 284 284 67.3
C 14 238 43526 642.37 284 284 67.3
C 14 67 15754 229.81 284 284 67.3
D 8 195 996821 4843.68 854 830 205.6
D 12 233 550477 2673.03 854 830 205.6
D 1 47 321290 1558.45 854 830 205.6

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