ASTROSAT CZTI

Data Quality Report

Orbit 33119

Creation date: 2024-06-27T20:45:11.717924
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/AS1A11_046T06_9000004764_33119cztM0_level2.evt modeM0/AS1A11_046T06_9000004764_33119cztM0_level2_quad_clean.evt
Size (bytes)510,134,400100,128,960
Size486.5 MB 95.5 MB
Events in quadrant A2,729,501698,042
Events in quadrant B4,084,222675,509
Events in quadrant C3,260,454659,170
Events in quadrant D5,011,400623,562

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112662
B0155581
C0130471
D0185771

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A536880.149031%
B53684678.699702%
C5368871.620715%
D53684398.178092%

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 7431 5369 0 0 0.00% 0.00%
B 7431 5369 311 311 4.19% 5.79%
C 7431 5369 63 63 0.85% 1.17%
D 7431 5369 370 370 4.98% 6.89%

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 13 254 10764 71.36 704 694 141.1
A 13 6 6275 39.55 704 694 141.1
A 0 226 6041 37.89 704 694 141.1
B 5 172 1150474 9013.33 674 662 127.6
B 5 200 153300 1196.52 674 662 127.6
B 0 189 43936 339.22 674 662 127.6
C 7 221 449894 3001.02 654 662 149.7
C 0 10 207177 1379.59 654 662 149.7
C 8 79 12099 76.4 654 662 149.7
D 7 223 634255 4047.73 643 628 156.5
D 8 195 597536 3813.16 643 628 156.5
D 12 6 487682 3111.39 643 628 156.5

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