ASTROSAT CZTI

Data Quality Report

Orbit 34365

Creation date: 2022-02-05T01:53:40.234485
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/AS1A05_019T01_9000004906_34365cztM0_level2.evt modeM0/AS1A05_019T01_9000004906_34365cztM0_level2_quad_clean.evt
Size (bytes)703,445,76056,833,920
Size670.9 MB 54.2 MB
Events in quadrant A2,374,504403,630
Events in quadrant B3,360,695403,204
Events in quadrant C4,666,100381,339
Events in quadrant D10,573,839189,752

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100093
B0130362
C0172132
D0346882

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A486840.082169%
B48682054.211175%
C486853210.928513%
D4868323966.536565%

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 6991 4869 0 0 0.00% 0.00%
B 6991 4869 129 129 1.85% 2.65%
C 6991 4869 481 481 6.88% 9.88%
D 6990 4868 3304 3304 47.27% 67.87%

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 33331 272.7 599 588 120.1
A 13 6 14982 119.88 599 588 120.1
A 9 143 9291 72.48 599 588 120.1
B 5 172 475873 4264.33 593 578 111.5
B 4 171 290889 2604.66 593 578 111.5
B 0 190 88204 786.18 593 578 111.5
C 4 254 2103845 16414.4 557 563 128.1
C 15 214 195014 1517.53 557 563 128.1
C 0 10 135727 1054.84 557 563 128.1
D 7 223 7819832 70933.82 409 401 110.2
D 8 195 624101 5657.88 409 401 110.2
D 13 249 167253 1513.59 409 401 110.2

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