ASTROSAT CZTI

Data Quality Report

Orbit 05530

Creation date: 2024-06-27T14:56:19.955200
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/AS1A02_199T01_9000000708_05530cztM0_level2.evt modeM0/AS1A02_199T01_9000000708_05530cztM0_level2_quad_clean.evt
Size (bytes)196,424,64051,505,920
Size187.3 MB 49.1 MB
Events in quadrant A1,397,649344,215
Events in quadrant B1,586,268342,249
Events in quadrant C1,353,983329,189
Events in quadrant D1,395,139320,460

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A064030
B068900
C063050
D064320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A314440.127226%
B3144130.413486%
C314430.095420%
D314410.031807%

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 3144 3144 0 0 0.00% 0.00%
B 3144 3144 8 8 0.25% 0.25%
C 3144 3144 1 1 0.03% 0.03%
D 3144 3144 1 1 0.03% 0.03%

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 15605 212.86 349 343 71.7
A 0 247 15422 210.31 349 343 71.7
A 0 50 8933 119.81 349 343 71.7
B 15 204 128315 1927.29 350 344 66.4
B 10 246 48416 723.98 350 344 66.4
B 4 48 17724 261.75 350 344 66.4
C 1 16 9742 117.84 343 345 79.7
C 9 16 3188 35.65 343 345 79.7
C 13 61 2853 31.45 343 345 79.7
D 2 152 63283 752.89 342 332 83.6
D 4 228 11360 131.89 342 332 83.6
D 13 238 8622 99.15 342 332 83.6

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