ASTROSAT CZTI

Data Quality Report

Orbit 12142

Creation date: 2024-06-27T16:22:58.373286
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/AS1G08_065T01_9000001796_12142cztM0_level2.evt modeM0/AS1G08_065T01_9000001796_12142cztM0_level2_quad_clean.evt
Size (bytes)505,944,00074,750,400
Size482.5 MB 71.3 MB
Events in quadrant A3,452,152467,838
Events in quadrant B4,508,669451,735
Events in quadrant C3,189,226456,603
Events in quadrant D3,738,093440,382

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142983
B0176902
C0135012
D0152882

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6396881.375860%
B63963655.706692%
C6396570.891182%
D63961302.032520%

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 7652 6397 9 9 0.12% 0.14%
B 7652 6398 191 191 2.50% 2.99%
C 7652 6398 0 0 0.00% 0.00%
D 7652 6397 43 43 0.56% 0.67%

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 1 162 57432 335.64 846 833 168.6
A 9 143 40760 236.78 846 833 168.6
A 1 178 26625 152.95 846 833 168.6
B 4 239 775299 5120.99 821 804 151.2
B 3 64 184779 1216.45 821 804 151.2
B 15 204 97096 636.69 821 804 151.2
C 15 208 14019 71.56 810 817 184.5
C 3 233 7301 35.14 810 817 184.5
C 13 61 5996 28.07 810 817 184.5
D 1 52 375777 1965.64 811 789 190.8
D 8 195 113052 588.47 811 789 190.8
D 12 221 47778 246.31 811 789 190.8

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