ASTROSAT CZTI

Data Quality Report

Orbit 16593

Creation date: 2024-06-27T17:24:50.410875
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/AS1C04_001T01_9000002446_16593cztM0_level2.evt modeM0/AS1C04_001T01_9000002446_16593cztM0_level2_quad_clean.evt
Size (bytes)454,593,600124,470,720
Size433.5 MB 118.7 MB
Events in quadrant A3,140,529836,429
Events in quadrant B3,642,514837,206
Events in quadrant C3,361,548812,556
Events in quadrant D3,150,879800,247

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142432
B0155371
C0147031
D0145381

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6945540.777538%
B6945931.339093%
C6945610.878330%
D6945390.561555%

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 7271 6947 7 7 0.10% 0.10%
B 7271 6947 14 14 0.19% 0.20%
C 7271 6947 0 0 0.00% 0.00%
D 7271 6947 5 5 0.07% 0.07%

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 40686 247.78 793 776 161.1
A 9 143 37021 225.02 793 776 161.1
A 15 223 8317 46.82 793 776 161.1
B 15 35 150668 986.4 792 769 152.0
B 0 85 142936 935.52 792 769 152.0
B 0 229 60483 392.94 792 769 152.0
C 3 233 256556 1434.53 760 763 178.3
C 14 238 119249 664.49 760 763 178.3
C 8 128 9576 49.42 760 763 178.3
D 1 52 139980 736.48 769 745 189.1
D 10 70 28616 147.42 769 745 189.1
D 2 234 28280 145.65 769 745 189.1

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