ASTROSAT CZTI

Data Quality Report

Orbit 03468

Creation date: 2024-06-27T14:29:26.855537
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/AS1G05_209T01_9000000458_03468cztM0_level2.evt modeM0/AS1G05_209T01_9000000458_03468cztM0_level2_quad_clean.evt
Size (bytes)266,376,96061,113,600
Size254.0 MB 58.3 MB
Events in quadrant A1,881,169396,273
Events in quadrant B2,455,642390,951
Events in quadrant C1,695,615392,553
Events in quadrant D1,756,430383,517

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0820
C0820
D0820

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A085060
B099800
C082040
D084610

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A407060.147420%
B4070370.909091%
C407070.171990%
D407090.221130%

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 4070 4070 1 1 0.02% 0.02%
B 4070 4070 32 32 0.79% 0.79%
C 4070 4070 7 7 0.17% 0.17%
D 4070 4070 7 7 0.17% 0.17%

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 8 15 142375 1570.53 434 425 90.4
A 0 118 28212 307.43 434 425 90.4
A 0 50 23191 251.88 434 425 90.4
B 15 204 474448 5565.52 436 426 85.2
B 4 200 62787 732.18 436 426 85.2
B 15 54 53781 626.44 436 426 85.2
C 1 192 37925 379.74 419 421 98.8
C 15 208 5396 50.37 419 421 98.8
C 6 80 4687 43.19 419 421 98.8
D 4 160 80868 787.61 421 408 102.2
D 6 112 28191 271.96 421 408 102.2
D 13 70 13171 124.93 421 408 102.2

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