ASTROSAT CZTI

Data Quality Report

Orbit 48097

Creation date: 2024-08-20T13:31:29.405662
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_071T07_9000006398_48097cztM0_level2.fits modeM0/AS1A13_071T07_9000006398_48097cztM0_level2_quad_clean.evt
Size (bytes)386,089,92080,853,120
Size368.2 MB 77.1 MB
Events in quadrant A6,779,677682,592
Events in quadrant B1,093,85742,014
Events in quadrant C2,645,378672,244
Events in quadrant D3,283,499615,749

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0244061
B067221
C0126431
D0143081

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62002754.435484%
B62016201100.000000%
C6201110.177391%
D6201661.064344%

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 7345 6200 90 90 1.23% 1.45%
B 7345 6200 1 1 0.01% 0.02%
C 7346 6202 5 5 0.07% 0.08%
D 7346 6202 66 66 0.90% 1.06%

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 4008741 28669.26 672 658 139.8
A 13 248 88679 629.6 672 658 139.8
A 14 248 50935 359.62 672 658 139.8
B 2 177 855261 76430.66 44 42 11.2
B 4 21 17709 1578.89 44 42 11.2
B 12 18 13778 1227.58 44 42 11.2
C 12 250 48022 308.31 658 661 153.6
C 14 254 18648 117.09 658 661 153.6
C 3 233 6871 40.43 658 661 153.6
D 12 2 400241 2424.65 658 636 164.8
D 2 165 129463 781.67 658 636 164.8
D 7 67 36835 219.64 658 636 164.8

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