ASTROSAT CZTI

Data Quality Report

Orbit 06904

Creation date: 2024-06-27T15:12:54.024062
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/AS1A02_005T01_9000000948_06904cztM0_level2.evt modeM0/AS1A02_005T01_9000000948_06904cztM0_level2_quad_clean.evt
Size (bytes)468,878,40063,244,800
Size447.2 MB 60.3 MB
Events in quadrant A3,278,514370,415
Events in quadrant B3,570,963372,742
Events in quadrant C3,256,959370,848
Events in quadrant D3,661,114356,409

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136122
B0146651
C0135171
D0148861

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6372961.506591%
B63721101.726303%
C6372781.224105%
D63721231.930320%

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 7682 6373 0 0 0.00% 0.00%
B 7682 6373 13 13 0.17% 0.20%
C 7682 6373 0 0 0.00% 0.00%
D 7682 6373 43 43 0.56% 0.67%

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 8 15 40515 236.9 832 815 167.6
A 13 14 35838 208.99 832 815 167.6
A 0 226 8243 44.32 832 815 167.6
B 4 48 140390 900.05 829 812 155.1
B 0 219 67118 427.57 829 812 155.1
B 0 214 56850 361.35 829 812 155.1
C 9 247 60536 323.45 810 816 184.6
C 9 54 22953 119.9 810 816 184.6
C 13 61 6490 30.73 810 816 184.6
D 2 216 246309 1251.86 813 788 196.1
D 2 152 131019 664.02 813 788 196.1
D 8 195 59904 301.42 813 788 196.1

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