ASTROSAT CZTI

Data Quality Report

Orbit 30193

Creation date: 2024-06-27T20:12:03.202521
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/AS1A10_050T05_9000004342_30193cztM0_level2.evt modeM0/AS1A10_050T05_9000004342_30193cztM0_level2_quad_clean.evt
Size (bytes)708,036,48091,771,200
Size675.2 MB 87.5 MB
Events in quadrant A3,237,332603,555
Events in quadrant B5,063,468605,020
Events in quadrant C8,435,368552,034
Events in quadrant D4,278,522574,817

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137222
B0194022
C0295362
D0171002

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6347681.071372%
B63471021.607058%
C6347110817.457066%
D63471151.811880%

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 7507 6348 1 1 0.01% 0.02%
B 7507 6347 0 0 0.00% 0.00%
C 7507 6347 371 371 4.94% 5.85%
D 7507 6347 75 75 1.00% 1.18%

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 8 192 27369 161.48 830 816 164.4
A 13 254 11899 67.4 830 816 164.4
A 3 137 8201 44.91 830 816 164.4
B 6 159 1811702 11473.76 825 805 157.8
B 12 111 18820 114.14 825 805 157.8
B 11 111 17285 104.42 825 805 157.8
C 3 233 5262256 29155.24 773 780 180.5
C 14 238 126032 694.05 773 780 180.5
C 2 114 14484 75.94 773 780 180.5
D 7 223 336427 1685.72 803 786 199.1
D 13 104 281858 1411.65 803 786 199.1
D 1 52 260153 1302.64 803 786 199.1

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