ASTROSAT CZTI

Data Quality Report

Orbit 12954

Creation date: 2024-06-27T16:34:21.779937
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/AS1G08_043T01_9000001902_12954cztM0_level2.evt modeM0/AS1G08_043T01_9000001902_12954cztM0_level2_quad_clean.evt
Size (bytes)513,581,76092,226,240
Size489.8 MB 88.0 MB
Events in quadrant A3,188,923630,930
Events in quadrant B5,945,402507,190
Events in quadrant C2,999,398635,350
Events in quadrant D3,016,572603,876

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129842
B0214271
C0124641
D0126431

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5937540.909550%
B5937143324.136769%
C5937410.690584%
D5937420.707428%

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 7268 5939 0 0 0.00% 0.00%
B 7267 5938 902 902 12.41% 15.19%
C 7268 5939 0 0 0.00% 0.00%
D 7268 5939 13 13 0.18% 0.22%

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 12 189 152928 979.07 777 763 155.4
A 1 162 20461 126.74 777 763 155.4
A 1 178 8838 51.96 777 763 155.4
B 4 239 3017386 24889.56 654 640 121.2
B 3 64 285036 2346.4 654 640 121.2
B 0 85 52596 428.66 654 640 121.2
C 13 61 5600 27.52 768 775 175.3
C 8 222 2792 11.5 768 775 175.3
C 3 248 2612 10.48 768 775 175.3
D 1 52 84377 467.33 764 746 179.0
D 10 253 21055 113.49 764 746 179.0
D 2 234 18029 96.58 764 746 179.0

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