ASTROSAT CZTI

Data Quality Report

Orbit 28259

Creation date: 2024-06-27T19:49:45.004720
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/AS1A10_067T01_9000004076_28259cztM0_level2.evt modeM0/AS1A10_067T01_9000004076_28259cztM0_level2_quad_clean.evt
Size (bytes)619,856,64093,274,560
Size591.1 MB 89.0 MB
Events in quadrant A3,648,995593,107
Events in quadrant B3,922,319599,331
Events in quadrant C3,721,681569,940
Events in quadrant D6,973,858543,087

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156010
B0162960
C0156930
D0257870

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74453474.660846%
B74463654.901961%
C74453724.996642%
D7445127517.125588%

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 7445 7445 5 5 0.07% 0.07%
B 7446 7446 12 12 0.16% 0.16%
C 7445 7445 0 0 0.00% 0.00%
D 7445 7445 787 787 10.57% 10.57%

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 96 35834 183.9 936 912 189.9
A 13 254 11673 56.67 936 912 189.9
A 3 137 9710 46.33 936 912 189.9
B 10 245 269841 1486.35 919 895 180.9
B 12 111 22964 121.97 919 895 180.9
B 11 111 21065 111.47 919 895 180.9
C 14 238 138667 649.84 893 900 212.0
C 3 233 98411 459.96 893 900 212.0
C 13 61 6171 24.86 893 900 212.0
D 1 52 2784288 13590.73 852 826 204.8
D 8 195 393718 1918.36 852 826 204.8
D 5 222 207916 1011.15 852 826 204.8

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