ASTROSAT CZTI

Data Quality Report

Orbit 30128

Creation date: 2024-06-27T20:11:16.529284
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_097T01_9000004334_30128cztM0_level2.evt modeM0/AS1A10_097T01_9000004334_30128cztM0_level2_quad_clean.evt
Size (bytes)652,976,64088,551,360
Size622.7 MB 84.4 MB
Events in quadrant A3,698,192556,496
Events in quadrant B5,478,069556,521
Events in quadrant C6,125,976530,493
Events in quadrant D3,991,308541,405

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157031
B0217011
C0231841
D0163471

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71311712.397981%
B71321942.720135%
C71324816.744251%
D7132791.107684%

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 7436 7132 61 61 0.82% 0.86%
B 7437 7133 9 9 0.12% 0.13%
C 7437 7133 131 131 1.76% 1.84%
D 7437 7133 27 27 0.36% 0.38%

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 0 13 392883 2282.31 854 835 171.8
A 13 254 11879 64.29 854 835 171.8
A 8 192 10833 58.2 854 835 171.8
B 6 159 2048295 12589.73 840 816 162.6
B 0 190 92771 565.42 840 816 162.6
B 15 201 27158 161.97 840 816 162.6
C 3 233 2770692 14536.45 808 814 190.5
C 14 238 143930 751.08 808 814 190.5
C 2 114 16852 84.17 808 814 190.5
D 8 195 283210 1378.95 830 809 204.8
D 13 104 222042 1080.27 830 809 204.8
D 12 227 208668 1014.97 830 809 204.8

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