ASTROSAT CZTI

Data Quality Report

Orbit 06465

Creation date: 2024-06-27T15:07:35.365340
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_139T02_9000000862_06465cztM0_level2.evt modeM0/AS1G06_139T02_9000000862_06465cztM0_level2_quad_clean.evt
Size (bytes)703,995,840108,331,200
Size671.4 MB 103.3 MB
Events in quadrant A6,197,280657,170
Events in quadrant B4,618,043669,752
Events in quadrant C4,394,477654,253
Events in quadrant D5,453,844626,868

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0254203
B0201902
C0197692
D0231092

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01960
B01960
C01960
D01960

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A97081301.339102%
B9708650.669551%
C9708330.339926%
D97082042.101360%

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 11643 9710 0 0 0.00% 0.00%
B 11643 9710 1 1 0.01% 0.01%
C 11643 9710 0 0 0.00% 0.00%
D 11643 9710 51 51 0.44% 0.53%

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 1780231 7709.05 1136 1113 230.8
A 8 15 27218 113.11 1136 1113 230.8
A 10 133 14352 57.37 1136 1113 230.8
B 15 204 41412 181.42 1148 1121 222.1
B 0 219 26229 113.06 1148 1121 222.1
B 12 111 22965 98.36 1148 1121 222.1
C 1 16 46438 174.85 1111 1117 259.2
C 13 61 8729 29.37 1111 1117 259.2
C 12 4 8096 26.92 1111 1117 259.2
D 13 137 399136 1460.76 1107 1073 272.5
D 2 152 347932 1272.86 1107 1073 272.5
D 8 195 230728 842.76 1107 1073 272.5

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