ASTROSAT CZTI

Data Quality Report

Orbit 05818

Creation date: 2024-06-27T14:59:46.738970
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/AS1G06_168T07_9000000750_05818cztM0_level2.evt modeM0/AS1G06_168T07_9000000750_05818cztM0_level2_quad_clean.evt
Size (bytes)463,101,12090,558,720
Size441.6 MB 86.4 MB
Events in quadrant A3,627,125576,639
Events in quadrant B3,049,604595,352
Events in quadrant C3,000,223586,184
Events in quadrant D3,921,710546,001

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149143
B0129832
C0129192
D0156212

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6285500.795545%
B6285140.222753%
C6285190.302307%
D62851852.943516%

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 7620 6286 25 25 0.33% 0.40%
B 7620 6286 0 0 0.00% 0.00%
C 7620 6286 0 0 0.00% 0.00%
D 7620 6286 124 124 1.63% 1.97%

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 15 236 347977 2257.83 764 748 153.8
A 15 79 275237 1784.84 764 748 153.8
A 15 223 47883 306.49 764 748 153.8
B 11 51 14536 95.6 779 762 144.1
B 12 111 13122 85.79 779 762 144.1
B 11 111 10215 65.61 779 762 144.1
C 13 61 6245 31.11 766 771 175.9
C 1 16 4261 19.84 766 771 175.9
C 12 4 3287 14.3 766 771 175.9
D 8 230 804200 4479.96 744 724 179.3
D 11 241 257036 1429.12 744 724 179.3
D 8 195 28166 153.01 744 724 179.3

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