ASTROSAT CZTI

Data Quality Report

Orbit 41383

Creation date: 2024-06-27T22:28:25.642613
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/AS1T05_105T01_9000005662_41383cztM0_level2.fits modeM0/AS1T05_105T01_9000005662_41383cztM0_level2_quad_clean.evt
Size (bytes)79,810,56014,428,800
Size76.1 MB 13.8 MB
Events in quadrant A564,093105,481
Events in quadrant B467,291107,626
Events in quadrant C704,40786,329
Events in quadrant D1,150,95072,131

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A022312
B018941
C025581
D039861

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A829101.206273%
B82970.844391%
C82912515.078408%
D82919623.642943%

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 829 829 3 3 0.36% 0.36%
B 829 829 3 3 0.36% 0.36%
C 829 829 115 115 13.87% 13.87%
D 829 829 169 169 20.39% 20.39%

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 152561 6552.5 103 101 23.3
A 12 189 4169 174.84 103 101 23.3
A 13 248 3193 132.89 103 101 23.3
B 0 190 32767 1472.73 103 100 22.2
B 5 255 21093 946.43 103 100 22.2
B 0 229 3187 139.17 103 100 22.2
C 0 10 306004 13239.57 91 91 23.1
C 15 214 35883 1549.04 91 91 23.1
C 12 249 7676 328.27 91 91 23.1
D 1 47 406369 17161.05 88 86 23.7
D 5 222 272598 11510.67 88 86 23.7
D 12 79 67244 2836.7 88 86 23.7

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