ASTROSAT CZTI

Data Quality Report

Orbit 38322

Creation date: 2024-06-27T21:51:16.548935
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/AS1C07_001T12_9000005372_38322cztM0_level2.fits modeM0/AS1C07_001T12_9000005372_38322cztM0_level2_quad_clean.evt
Size (bytes)504,604,80089,556,480
Size481.2 MB 85.4 MB
Events in quadrant A2,868,322637,028
Events in quadrant B2,936,618646,453
Events in quadrant C2,679,065630,240
Events in quadrant D9,746,560394,213

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120892
B0127121
C0116991
D0329611

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A577070.121317%
B5770230.398614%
C577030.051993%
D5770196434.038128%

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 7084 5771 2 2 0.03% 0.03%
B 7084 5771 10 10 0.14% 0.17%
C 7084 5771 2 2 0.03% 0.03%
D 7084 5771 1834 1834 25.89% 31.78%

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 10 83 379343 2995.61 627 613 126.4
A 12 189 23734 182.88 627 613 126.4
A 13 6 20674 158.67 627 613 126.4
B 5 184 241917 2003.96 625 607 120.4
B 0 229 78816 649.49 625 607 120.4
B 0 183 69804 574.65 625 607 120.4
C 15 214 244632 1709.63 615 620 142.7
C 12 249 16723 112.82 615 620 142.7
C 12 254 6835 43.54 615 620 142.7
D 10 203 4927836 37672.98 529 513 130.8
D 2 16 1744482 13333.91 529 513 130.8
D 13 138 232341 1772.49 529 513 130.8

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