ASTROSAT CZTI

Data Quality Report

Orbit 05315

Creation date: 2024-06-27T14:53:50.180803
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/AS1G05_240T01_9000000674_05315cztM0_level2.evt modeM0/AS1G05_240T01_9000000674_05315cztM0_level2_quad_clean.evt
Size (bytes)509,411,52094,011,840
Size485.8 MB 89.7 MB
Events in quadrant A3,559,462584,208
Events in quadrant B3,906,975593,470
Events in quadrant C3,551,111578,286
Events in quadrant D3,884,205552,776

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160203
B0168312
C0159942
D0171402

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77311231.590997%
B77311672.160135%
C77311131.461648%
D77311652.134265%

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 9021 7732 0 0 0.00% 0.00%
B 9021 7734 36 36 0.40% 0.47%
C 9021 7734 0 0 0.00% 0.00%
D 9021 7734 42 42 0.47% 0.54%

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 13 251 51335 273.03 902 881 184.8
A 15 236 28046 147.0 902 881 184.8
A 12 194 8855 43.15 902 881 184.8
B 10 16 296946 1679.89 912 887 176.2
B 4 48 29482 162.25 912 887 176.2
B 4 80 21712 118.16 912 887 176.2
C 1 16 72159 344.26 891 895 207.0
C 13 61 7131 30.12 891 895 207.0
C 12 4 3147 10.88 891 895 207.0
D 2 234 250169 1145.32 883 854 217.7
D 2 14 119571 545.37 883 854 217.7
D 8 195 57175 258.73 883 854 217.7

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