ASTROSAT CZTI

Data Quality Report

Orbit 39330

Creation date: 2024-06-27T22:03:18.533701
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/AS1A12_061T07_9000005468_39330cztM0_level2.fits modeM0/AS1A12_061T07_9000005468_39330cztM0_level2_quad_clean.evt
Size (bytes)389,234,88097,968,960
Size371.2 MB 93.4 MB
Events in quadrant A2,952,894665,847
Events in quadrant B3,156,322689,575
Events in quadrant C2,849,950665,720
Events in quadrant D5,049,320584,824

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0350

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117693
B0124512
C0112962
D0187402

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5145370.719145%
B5145991.924198%
C514550.097182%
D51452324.509232%

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 7177 5146 17 17 0.24% 0.33%
B 7177 5146 47 47 0.65% 0.91%
C 7177 5146 0 0 0.00% 0.00%
D 7177 5146 203 203 2.83% 3.94%

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 10 83 414427 3290.52 626 614 125.8
A 13 248 78719 621.07 626 614 125.8
A 15 223 21263 164.19 626 614 125.8
B 5 172 539658 4538.88 628 613 118.8
B 5 255 125765 1053.81 628 613 118.8
B 5 184 16581 134.45 628 613 118.8
C 15 214 236274 1617.11 630 636 145.7
C 9 187 111943 763.86 630 636 145.7
C 14 254 19031 126.24 630 636 145.7
D 12 235 2196761 14896.8 610 595 147.4
D 2 249 228190 1543.8 610 595 147.4
D 2 16 142838 964.85 610 595 147.4

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