ASTROSAT CZTI

Data Quality Report

Orbit 07722

Creation date: 2024-06-27T15:23:08.477967
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/AS1G06_064T01_9000001066_07722cztM0_level2.evt modeM0/AS1G06_064T01_9000001066_07722cztM0_level2_quad_clean.evt
Size (bytes)567,017,28068,976,000
Size540.7 MB 65.8 MB
Events in quadrant A3,174,321452,350
Events in quadrant B2,991,253462,534
Events in quadrant C2,801,200448,273
Events in quadrant D7,790,138297,567

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135721
B0129471
C0126241
D0272211

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61092183.568505%
B61091422.324439%
C6109841.375020%
D6109206933.868064%

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 6374 6109 72 72 1.13% 1.18%
B 6374 6109 1 1 0.02% 0.02%
C 6374 6110 0 0 0.00% 0.00%
D 6373 6108 1937 1937 30.39% 31.71%

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 15 234 362404 2391.87 728 711 151.2
A 0 226 6904 40.95 728 711 151.2
A 12 194 6460 38.01 728 711 151.2
B 0 229 42698 293.14 736 717 143.2
B 0 219 15843 105.62 736 717 143.2
B 4 173 15629 104.13 736 717 143.2
C 8 128 10885 60.62 712 715 167.8
C 8 112 6482 34.38 712 715 167.8
C 13 61 5653 29.43 712 715 167.8
D 12 221 5316648 37310.67 575 557 142.5
D 13 104 95439 665.92 575 557 142.5
D 2 136 52526 364.74 575 557 142.5

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