ASTROSAT CZTI

Data Quality Report

Orbit 34063

Creation date: 2024-06-27T20:56:05.550649
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/AS1C07_001T04_9000004868_34063cztM0_level2.evt modeM0/AS1C07_001T04_9000004868_34063cztM0_level2_quad_clean.evt
Size (bytes)664,761,60076,331,520
Size634.0 MB 72.8 MB
Events in quadrant A5,346,656462,254
Events in quadrant B7,189,450493,056
Events in quadrant C3,171,222510,962
Events in quadrant D4,074,193480,783

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0191653
B0247752
C0124552
D0156342

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5186134725.973776%
B5186206239.760895%
C51861052.024682%
D51862464.743540%

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 7098 5186 1243 1243 17.51% 23.97%
B 7099 5187 1916 1916 26.99% 36.94%
C 7099 5187 90 90 1.27% 1.74%
D 7099 5187 259 259 3.65% 4.99%

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 15 169 3275050 30911.28 530 521 105.9
A 10 83 14429 131.29 530 521 105.9
A 13 254 7554 66.39 530 521 105.9
B 5 31 1882797 19607.83 501 490 96.0
B 5 15 1663955 17328.17 501 490 96.0
B 5 14 927938 9661.14 501 490 96.0
C 0 10 322034 2434.8 577 581 132.0
C 15 214 229318 1732.53 577 581 132.0
C 0 207 220159 1663.16 577 581 132.0
D 8 195 513079 3643.18 577 562 140.7
D 2 250 425651 3021.71 577 562 140.7
D 13 168 245815 1743.36 577 562 140.7

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