ASTROSAT CZTI

Data Quality Report

Orbit 01392

Creation date: 2024-06-27T14:12:00.257616
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/AS1G04_014T02_9000000232_01392cztM0_level2.evt modeM0/AS1G04_014T02_9000000232_01392cztM0_level2_quad_clean.evt
Size (bytes)1,116,622,08094,798,080
Size1.0 GB 90.4 MB
Events in quadrant A11,036,611585,900
Events in quadrant B7,945,740625,794
Events in quadrant C7,252,357612,949
Events in quadrant D7,155,771596,293

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0374021
B0281720
C0261200
D0258870

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64505518.542636%
B6450140.217054%
C645030.046512%
D6450701.085271%

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 7185 6450 1708 1708 23.77% 26.48%
B 7185 6451 246 246 3.42% 3.81%
C 7185 6451 139 139 1.93% 2.15%
D 7185 6451 271 271 3.77% 4.20%

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 15 127 3804326 8549.49 1854 1869 444.8
A 4 32 108327 239.36 1854 1869 444.8
A 3 80 8575 15.08 1854 1869 444.8
B 12 52 119132 246.5 1999 2009 475.1
B 6 53 61241 124.66 1999 2009 475.1
B 8 219 51958 105.13 1999 2009 475.1
C 15 241 227319 452.69 1784 1842 498.1
C 7 220 24812 46.12 1784 1842 498.1
C 3 111 20035 36.53 1784 1842 498.1
D 9 53 225345 429.21 1718 1770 520.9
D 2 16 212864 405.25 1718 1770 520.9
D 1 83 200683 381.86 1718 1770 520.9

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