ASTROSAT CZTI

Data Quality Report

Orbit 13644

Creation date: 2024-06-27T16:43:58.430862
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/AS1G08_083T03_9000002022_13644cztM0_level2.evt modeM0/AS1G08_083T03_9000002022_13644cztM0_level2_quad_clean.evt
Size (bytes)449,637,12092,825,280
Size428.8 MB 88.5 MB
Events in quadrant A3,110,388595,698
Events in quadrant B3,300,160603,178
Events in quadrant C3,265,646580,988
Events in quadrant D3,481,072559,539

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137393
B0141372
C0139442
D0147122

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6759270.399467%
B6759660.976476%
C6759420.621394%
D6759681.006066%

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 8620 6762 0 0 0.00% 0.00%
B 8620 6762 1 1 0.01% 0.01%
C 8620 6762 8 8 0.09% 0.12%
D 8620 6762 42 42 0.49% 0.62%

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 0 226 7126 38.42 806 788 165.0
A 12 194 6100 32.2 806 788 165.0
A 1 162 6006 31.63 806 788 165.0
B 0 214 50351 318.0 809 789 155.9
B 0 219 43984 277.15 809 789 155.9
B 0 229 24200 150.21 809 789 155.9
C 3 233 163882 901.32 779 783 181.0
C 14 234 60351 329.19 779 783 181.0
C 13 61 5430 25.68 779 783 181.0
D 5 222 269445 1440.67 770 748 186.5
D 8 195 138278 737.39 770 748 186.5
D 13 122 94901 504.82 770 748 186.5

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