ASTROSAT CZTI

Data Quality Report

Orbit 03185

Creation date: 2024-06-27T14:25:39.890211
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/AS1G05_127T01_9000000436_03185cztM0_level2.evt modeM0/AS1G05_127T01_9000000436_03185cztM0_level2_quad_clean.evt
Size (bytes)687,481,92069,485,760
Size655.6 MB 66.3 MB
Events in quadrant A2,809,165482,027
Events in quadrant B3,011,718488,093
Events in quadrant C11,778,085256,843
Events in quadrant D2,814,342456,812

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123652
B0128261
C0391111
D0127251

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6000450.750000%
B6000761.266667%
C6000416969.483333%
D6000340.566667%

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 7250 6001 0 0 0.00% 0.00%
B 7250 6001 14 14 0.19% 0.23%
C 7250 6000 3490 3490 48.14% 58.17%
D 7250 6001 7 7 0.10% 0.12%

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 3 1 8284 51.12 726 714 148.1
A 12 194 7639 46.77 726 714 148.1
A 0 226 7609 46.57 726 714 148.1
B 2 249 51739 365.42 732 717 139.6
B 4 81 47854 337.6 732 717 139.6
B 4 80 36812 258.51 732 717 139.6
C 12 206 10329698 128878.85 343 347 80.1
C 6 80 71736 890.72 343 347 80.1
C 1 192 12410 150.51 343 347 80.1
D 13 120 50960 298.86 692 672 168.3
D 5 233 49960 292.92 692 672 168.3
D 13 223 39029 227.96 692 672 168.3

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
Veto Counter