ASTROSAT CZTI

Data Quality Report

Orbit 34159

Creation date: 2024-06-27T20:57:14.155403
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_054T07_9000004878_34159cztM0_level2.evt modeM0/AS1A11_054T07_9000004878_34159cztM0_level2_quad_clean.evt
Size (bytes)469,290,24085,167,360
Size447.6 MB 81.2 MB
Events in quadrant A2,481,547558,426
Events in quadrant B3,902,962564,207
Events in quadrant C3,298,135562,868
Events in quadrant D4,173,096525,346

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0108103
B0150622
C0130862
D0162342

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350
B0350
C0350
D0350

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A526350.095003%
B52633336.327190%
C52631843.496105%
D52631402.660080%

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 8787 5265 0 0 0.00% 0.00%
B 8787 5265 221 221 2.52% 4.20%
C 8787 5265 112 112 1.27% 2.13%
D 8787 5265 89 89 1.01% 1.69%

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 21384 164.11 634 622 126.5
A 13 254 10124 75.11 634 622 126.5
A 13 6 8981 66.07 634 622 126.5
B 5 31 621061 5142.63 627 611 120.6
B 5 15 334145 2764.52 627 611 120.6
B 5 255 202840 1676.19 627 611 120.6
C 0 10 630929 4415.93 613 619 142.7
C 15 214 220345 1539.39 613 619 142.7
C 9 187 34225 235.44 613 619 142.7
D 8 195 996999 6646.7 612 595 149.9
D 8 230 236320 1572.45 612 595 149.9
D 10 118 124492 826.48 612 595 149.9

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