ASTROSAT CZTI

Data Quality Report

Orbit 30044

Creation date: 2024-06-27T20:10:23.722092
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/AS1A10_082T06_9000004318_30044cztM0_level2.evt modeM0/AS1A10_082T06_9000004318_30044cztM0_level2_quad_clean.evt
Size (bytes)568,825,92089,884,800
Size542.5 MB 85.7 MB
Events in quadrant A3,482,428567,144
Events in quadrant B5,794,012561,608
Events in quadrant C3,561,227546,550
Events in quadrant D3,896,880540,757

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150142
B0223552
C0150202
D0162112

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72621021.404572%
B72631962.698609%
C72631492.051494%
D72631161.597136%

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 8077 7264 3 3 0.04% 0.04%
B 8078 7265 13 13 0.16% 0.18%
C 8078 7265 0 0 0.00% 0.00%
D 8078 7265 48 48 0.59% 0.66%

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 8 192 25558 135.31 894 875 182.4
A 13 254 14428 74.29 894 875 182.4
A 3 137 9113 45.16 894 875 182.4
B 6 159 2103525 12300.48 881 859 170.9
B 5 255 130092 756.01 881 859 170.9
B 0 190 68413 395.19 881 859 170.9
C 14 238 138161 681.87 855 860 201.4
C 3 233 52333 255.63 855 860 201.4
C 2 114 17619 83.23 855 860 201.4
D 8 195 232157 1062.77 857 836 217.7
D 13 138 127679 582.76 857 836 217.7
D 7 238 69644 316.13 857 836 217.7

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