ASTROSAT CZTI

Data Quality Report

Orbit 45138

Creation date: 2024-06-27T23:09:50.734837
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_017T02_9000006046_45138cztM0_level2.fits modeM0/AS1A13_017T02_9000006046_45138cztM0_level2_quad_clean.evt
Size (bytes)1,725,269,760249,042,240
Size1.6 GB 237.5 MB
Events in quadrant A31,300,1711,049,773
Events in quadrant B8,932,0201,900,050
Events in quadrant C9,729,6161,793,405
Events in quadrant D12,560,2041,599,528

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01049032
B0386842
C0414172
D0494072

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03500
B03500
C03500
D03500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A17372814546.885793%
B173724102.360120%
C173736293.620561%
D173739645.548840%

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 20142 17373 7108 7108 35.29% 40.91%
B 20142 17374 163 163 0.81% 0.94%
C 20143 17375 456 456 2.26% 2.62%
D 20143 17376 790 790 3.92% 4.55%

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 15 223 20583563 68265.3 1473 1444 301.5
A 10 83 4636213 15372.27 1473 1444 301.5
A 13 248 383590 1267.47 1473 1444 301.5
B 3 112 435205 1128.04 1944 1888 384.1
B 4 170 215695 556.6 1944 1888 384.1
B 0 183 190961 492.21 1944 1888 384.1
C 14 254 1937910 4360.93 1891 1904 443.9
C 12 2 146276 325.2 1891 1904 443.9
C 1 3 69229 151.65 1891 1904 443.9
D 13 249 1974633 4176.4 1869 1811 472.4
D 13 29 700417 1478.92 1869 1811 472.4
D 5 235 666856 1407.88 1869 1811 472.4

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