ASTROSAT CZTI

Data Quality Report

Orbit 15116

Creation date: 2024-06-27T17:03:53.977117
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/AS1A04_130T03_9000002224_15116cztM0_level2.evt modeM0/AS1A04_130T03_9000002224_15116cztM0_level2_quad_clean.evt
Size (bytes)318,787,20038,027,520
Size304.0 MB 36.3 MB
Events in quadrant A1,935,536219,789
Events in quadrant B3,290,725220,399
Events in quadrant C2,297,091219,965
Events in quadrant D1,862,617213,100

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A083491
B0123691
C091741
D082741

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A39291152.926953%
B392960115.296513%
C39291062.697888%
D3929832.112497%

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 3960 3931 6 6 0.15% 0.15%
B 3960 3930 416 416 10.51% 10.59%
C 3960 3931 5 5 0.13% 0.13%
D 3960 3931 9 9 0.23% 0.23%

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 13 248 47908 474.91 478 468 99.9
A 12 189 13617 131.63 478 468 99.9
A 9 143 11237 107.81 478 468 99.9
B 10 245 1326245 15091.38 448 436 87.9
B 3 64 93816 1062.92 448 436 87.9
B 0 229 58191 657.41 448 436 87.9
C 3 233 420254 3864.43 461 464 108.6
C 4 254 59151 540.25 461 464 108.6
C 8 128 7096 61.05 461 464 108.6
D 7 38 29242 250.39 468 454 115.0
D 2 152 17873 151.5 468 454 115.0
D 2 234 17687 149.89 468 454 115.0

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