ASTROSAT CZTI

Data Quality Report

Orbit 23597

Creation date: 2024-06-27T18:56:37.598624
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/AS1A07_054T01_9000003486_23597cztM0_level2.evt modeM0/AS1A07_054T01_9000003486_23597cztM0_level2_quad_clean.evt
Size (bytes)475,513,920132,799,680
Size453.5 MB 126.6 MB
Events in quadrant A3,208,199906,073
Events in quadrant B3,611,393911,480
Events in quadrant C3,252,451864,498
Events in quadrant D3,849,342848,662

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142871
B0151881
C0143291
D0161021

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7051991.404056%
B70521462.070335%
C70521251.772547%
D70521422.013613%

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 7606 7051 0 0 0.00% 0.00%
B 7607 7052 18 18 0.24% 0.26%
C 7607 7052 0 0 0.00% 0.00%
D 7607 7052 74 74 0.97% 1.05%

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 12378 69.58 831 811 166.2
A 3 137 7343 39.29 831 811 166.2
A 0 226 6932 36.82 831 811 166.2
B 0 189 143518 917.44 825 804 155.6
B 3 64 133252 851.44 825 804 155.6
B 4 216 39808 250.74 825 804 155.6
C 14 238 126825 693.65 789 792 181.7
C 7 247 16050 83.98 789 792 181.7
C 0 10 10090 51.17 789 792 181.7
D 1 52 301498 1563.62 798 774 192.3
D 12 233 242794 1258.39 798 774 192.3
D 7 223 196522 1017.8 798 774 192.3

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