ASTROSAT CZTI

Data Quality Report

Orbit 31347

Creation date: 2024-06-27T20:27:06.453933
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_101T01_9000004546_31347cztM0_level2.evt modeM0/AS1A10_101T01_9000004546_31347cztM0_level2_quad_clean.evt
Size (bytes)471,438,72080,340,480
Size449.6 MB 76.6 MB
Events in quadrant A2,680,818518,470
Events in quadrant B4,415,558518,116
Events in quadrant C3,082,301498,224
Events in quadrant D3,705,727492,954

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118901
B0175551
C0129931
D0151481

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5803330.568671%
B5803851.464760%
C58031843.170774%
D5803370.637601%

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 6623 5804 0 0 0.00% 0.00%
B 6623 5804 4 4 0.06% 0.07%
C 6623 5804 7 7 0.11% 0.12%
D 6623 5804 1 1 0.02% 0.02%

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 13 254 10897 73.03 694 682 139.9
A 3 137 7119 46.02 694 682 139.9
A 0 226 5718 36.01 694 682 139.9
B 6 159 1627995 12201.07 686 667 133.4
B 0 190 45457 335.82 686 667 133.4
B 10 247 21752 158.09 686 667 133.4
C 3 233 250773 1593.93 663 668 156.9
C 14 238 131242 832.15 663 668 156.9
C 0 10 63588 400.99 663 668 156.9
D 8 195 1164346 7221.57 669 650 161.1
D 2 234 22936 138.3 669 650 161.1
D 11 176 7939 45.23 669 650 161.1

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