ASTROSAT CZTI

Data Quality Report

Orbit 14549

Creation date: 2024-06-27T16:56:43.977169
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/AS1G08_081T01_9000002144_14549cztM0_level2.evt modeM0/AS1G08_081T01_9000002144_14549cztM0_level2_quad_clean.evt
Size (bytes)512,043,84094,916,160
Size488.3 MB 90.5 MB
Events in quadrant A3,850,567605,498
Events in quadrant B3,597,436598,071
Events in quadrant C3,847,471591,278
Events in quadrant D3,729,007584,202

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160073
B0154402
C0159442
D0161652

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7116670.941540%
B7116811.138280%
C7116300.421585%
D7116660.927487%

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 9222 7119 1 1 0.01% 0.01%
B 9222 7119 0 0 0.00% 0.00%
C 9222 7119 1 1 0.01% 0.01%
D 9222 7119 16 16 0.17% 0.22%

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 401649 2254.26 878 860 177.8
A 12 189 33055 181.08 878 860 177.8
A 0 23 23011 124.59 878 860 177.8
B 0 219 43372 254.14 877 854 167.3
B 3 209 24051 138.66 877 854 167.3
B 5 29 23389 134.7 877 854 167.3
C 3 233 520311 2641.26 851 854 196.7
C 6 96 10426 48.67 851 854 196.7
C 13 61 6309 27.74 851 854 196.7
D 12 110 231450 1122.27 852 828 205.5
D 10 199 153737 744.1 852 828 205.5
D 2 152 79508 382.88 852 828 205.5

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