ASTROSAT CZTI

Data Quality Report

Orbit 30348

Creation date: 2024-06-27T20:14:04.281031
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_053T15_9000004364_30348cztM0_level2.evt modeM0/AS1A10_053T15_9000004364_30348cztM0_level2_quad_clean.evt
Size (bytes)67,556,16017,176,320
Size64.4 MB 16.4 MB
Events in quadrant A425,004113,441
Events in quadrant B655,414114,770
Events in quadrant C432,117111,636
Events in quadrant D469,434109,936

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A017920
B026742
C018090
D019290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A89400.000000%
B89320.223964%
C89320.223964%
D89380.895857%

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 894 894 0 0 0.00% 0.00%
B 893 893 0 0 0.00% 0.00%
C 893 893 0 0 0.00% 0.00%
D 893 893 7 7 0.78% 0.78%

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 1586 61.37 110 107 24.1
A 3 137 1046 38.96 110 107 24.1
A 0 226 932 34.23 110 107 24.1
B 6 159 225914 9731.85 106 104 23.2
B 3 209 6669 282.94 106 104 23.2
B 12 111 2602 107.66 106 104 23.2
C 14 238 18465 699.94 103 104 26.2
C 3 233 3761 139.41 103 104 26.2
C 14 254 2698 98.89 103 104 26.2
D 13 249 23696 796.68 106 103 29.6
D 8 195 19946 670.05 106 103 29.6
D 2 250 19449 653.27 106 103 29.6

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