ASTROSAT CZTI

Data Quality Report

Orbit 35972

Creation date: 2024-06-27T21:21:09.016000
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/AS1T05_009T07_9000005152_35972cztM0_level2.evt modeM0/AS1T05_009T07_9000005152_35972cztM0_level2_quad_clean.evt
Size (bytes)590,587,20063,538,560
Size563.2 MB 60.6 MB
Events in quadrant A1,901,215514,053
Events in quadrant B10,145,360180,492
Events in quadrant C2,363,288493,977
Events in quadrant D3,212,707459,270

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0780
B0780
C0780
D0780

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A078420
B0328070
C093080
D0121950

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A388330.077260%
B3883388099.922740%
C3883782.008756%
D38833087.932011%

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 3883 3883 0 0 0.00% 0.00%
B 3882 3882 3784 3784 97.48% 97.48%
C 3883 3883 77 77 1.98% 1.98%
D 3883 3883 242 242 6.23% 6.23%

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 10 83 70433 739.28 469 461 94.6
A 8 144 7262 71.86 469 461 94.6
A 13 254 5990 58.42 469 461 94.6
B 5 31 3755837 105616.73 180 176 35.6
B 5 15 3610274 101523.21 180 176 35.6
B 5 14 1809970 50895.04 180 176 35.6
C 9 187 386256 3797.05 441 443 101.6
C 15 214 155727 1528.26 441 443 101.6
C 0 207 91596 897.1 441 443 101.6
D 7 223 688779 6524.33 433 420 105.5
D 10 118 279335 2643.58 433 420 105.5
D 12 17 172555 1631.51 433 420 105.5

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