ASTROSAT CZTI

Data Quality Report

Orbit 14729

Creation date: 2024-06-27T16:59:10.948480
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_9000002178_14729cztM0_level2.evt modeM0/AS1G08_081T01_9000002178_14729cztM0_level2_quad_clean.evt
Size (bytes)418,700,16080,475,840
Size399.3 MB 76.7 MB
Events in quadrant A3,158,241506,065
Events in quadrant B3,064,659501,649
Events in quadrant C3,089,725491,667
Events in quadrant D2,932,348490,915

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133472
B0131171
C0130531
D0131851

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6400440.687500%
B6400480.750000%
C6400300.468750%
D6400340.531250%

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 7296 6401 0 0 0.00% 0.00%
B 7296 6401 2 2 0.03% 0.03%
C 7296 6401 3 3 0.04% 0.05%
D 7296 6401 5 5 0.07% 0.08%

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 134569 852.45 768 750 157.0
A 12 189 52469 329.46 768 750 157.0
A 1 162 7581 43.51 768 750 157.0
B 0 205 26359 174.0 760 741 147.2
B 4 48 18856 123.04 760 741 147.2
B 12 111 17571 114.31 760 741 147.2
C 3 233 199298 1165.0 733 738 170.4
C 4 254 27850 159.07 733 738 170.4
C 13 61 5383 27.25 733 738 170.4
D 12 16 55799 312.06 738 718 176.5
D 10 70 22407 122.88 738 718 176.5
D 2 234 21861 119.79 738 718 176.5

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