ASTROSAT CZTI

Data Quality Report

Orbit 08198

Creation date: 2024-06-27T15:29:21.803073
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/AS1A03_106T01_9000001130_08198cztM0_level2.evt modeM0/AS1A03_106T01_9000001130_08198cztM0_level2_quad_clean.evt
Size (bytes)488,491,200107,737,920
Size465.9 MB 102.7 MB
Events in quadrant A3,538,022687,757
Events in quadrant B3,968,783697,305
Events in quadrant C3,350,228682,367
Events in quadrant D3,414,635661,257

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01613633
B01705726
C01580731
D01604329

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01602
D01600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76801441.875000%
B76822343.046082%
C7680971.263021%
D7681891.158703%

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 8374 7697 0 0 0.00% 0.00%
B 8374 7697 71 71 0.85% 0.92%
C 8374 7697 0 0 0.00% 0.00%
D 8374 7697 9 9 0.11% 0.12%

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 79 106484 572.65 884 861 184.4
A 8 15 27157 142.57 884 861 184.4
A 0 226 8312 40.4 884 861 184.4
B 10 16 333435 1946.63 890 868 170.8
B 0 214 65247 376.83 890 868 170.8
B 4 81 38687 221.37 890 868 170.8
C 13 61 6566 28.62 857 857 199.5
C 12 4 3469 13.09 857 857 199.5
C 7 159 3360 12.55 857 857 199.5
D 1 52 93257 440.25 854 825 210.0
D 2 234 28779 133.14 854 825 210.0
D 13 105 20929 95.76 854 825 210.0

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