ASTROSAT CZTI

Data Quality Report

Orbit 17093

Creation date: 2024-06-27T17:31:58.127927
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_004T06_9000002536_17093cztM0_level2.evt modeM0/AS1A05_004T06_9000002536_17093cztM0_level2_quad_clean.evt
Size (bytes)419,993,28096,117,120
Size400.5 MB 91.7 MB
Events in quadrant A2,979,077627,703
Events in quadrant B3,193,048649,466
Events in quadrant C3,171,201614,599
Events in quadrant D2,958,849590,620

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127852
B0134342
C0132542
D0129572

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6141120.195408%
B6141330.537372%
C6141510.830484%
D6141140.227976%

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 7511 6142 0 0 0.00% 0.00%
B 7511 6142 7 7 0.09% 0.11%
C 7511 6142 0 0 0.00% 0.00%
D 7511 6142 9 9 0.12% 0.15%

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 0 226 6750 38.57 774 758 155.4
A 12 194 5756 32.17 774 758 155.4
A 3 137 5245 28.88 774 758 155.4
B 0 197 48960 331.95 784 766 145.2
B 15 32 24134 160.96 784 766 145.2
B 0 189 18012 118.79 784 766 145.2
C 14 238 118398 674.47 754 762 174.4
C 3 233 67783 384.27 754 762 174.4
C 9 54 26537 147.78 754 762 174.4
D 10 70 58130 317.33 751 730 180.9
D 2 234 23828 127.7 751 730 180.9
D 12 235 20825 111.09 751 730 180.9

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