ASTROSAT CZTI

Data Quality Report

Orbit 46367

Creation date: 2024-06-27T23:22:17.056232
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/AS1A13_068T02_9000006200_46367cztM0_level2.fits modeM0/AS1A13_068T02_9000006200_46367cztM0_level2_quad_clean.evt
Size (bytes)1,503,414,720288,233,280
Size1.4 GB 274.9 MB
Events in quadrant A17,826,1511,873,413
Events in quadrant B10,606,5241,966,111
Events in quadrant C9,973,9621,914,768
Events in quadrant D15,784,2961,667,313

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03860
B03860
C03860
D03860

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0656213
B0445663
C0432133
D0602913

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A189258834.665786%
B189265212.752827%
C189262541.342069%
D1892516628.782034%

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 20445 18929 403 403 1.97% 2.13%
B 20446 18930 229 229 1.12% 1.21%
C 20446 18930 132 132 0.65% 0.70%
D 20445 18929 1210 1210 5.92% 6.39%

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 8381452 19693.18 2056 2008 425.5
A 15 223 1341396 3147.8 2056 2008 425.5
A 0 243 43812 98.25 2056 2008 425.5
B 5 255 1051549 2554.32 2073 2005 410.9
B 5 172 543000 1316.64 2073 2005 410.9
B 0 189 276225 667.38 2073 2005 410.9
C 14 254 1751607 3626.94 2056 2066 482.4
C 12 2 103370 210.01 2056 2066 482.4
C 2 14 27964 53.69 2056 2066 482.4
D 1 52 5291798 10592.73 1997 1940 499.4
D 12 233 1330440 2660.27 1997 1940 499.4
D 13 249 453564 904.36 1997 1940 499.4

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