ASTROSAT CZTI

Data Quality Report

Orbit 16428

Creation date: 2024-06-27T17:22:32.156385
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/AS1A05_069T03_9000002426_16428cztM0_level2.evt modeM0/AS1A05_069T03_9000002426_16428cztM0_level2_quad_clean.evt
Size (bytes)459,135,36082,324,800
Size437.9 MB 78.5 MB
Events in quadrant A3,262,214522,158
Events in quadrant B3,720,153542,178
Events in quadrant C3,178,497509,213
Events in quadrant D3,321,521485,010

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135353
B0150432
C0131382
D0140572

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6225661.060241%
B6225891.429719%
C6225530.851406%
D6225550.883534%

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 7566 6227 27 27 0.36% 0.43%
B 7566 6227 7 7 0.09% 0.11%
C 7566 6226 1 1 0.01% 0.02%
D 7566 6227 38 38 0.50% 0.61%

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 15 174 180604 1140.8 793 778 157.6
A 15 223 27068 166.78 793 778 157.6
A 15 239 7898 45.17 793 778 157.6
B 15 35 283536 1861.13 807 788 151.9
B 0 189 107209 700.5 807 788 151.9
B 7 220 45343 293.27 807 788 151.9
C 14 238 118534 656.14 769 774 179.5
C 7 247 39428 215.37 769 774 179.5
C 3 233 19978 107.0 769 774 179.5
D 12 218 154508 826.79 763 741 186.0
D 15 0 137743 736.65 763 741 186.0
D 12 110 55107 292.32 763 741 186.0

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