ASTROSAT CZTI

Data Quality Report

Orbit 08167

Creation date: 2024-06-27T15:28:51.302475
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/AS1G07_043T01_9000001126_08167cztM0_level2.evt modeM0/AS1G07_043T01_9000001126_08167cztM0_level2_quad_clean.evt
Size (bytes)519,958,08093,225,600
Size495.9 MB 88.9 MB
Events in quadrant A3,769,360566,349
Events in quadrant B3,872,603574,688
Events in quadrant C3,703,629581,563
Events in quadrant D3,874,601561,499

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0164303
B0168182
C0163662
D0169182

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77561531.972666%
B77561902.449716%
C77561652.127385%
D77561792.307891%

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 8766 7759 15 15 0.17% 0.19%
B 8766 7759 11 11 0.13% 0.14%
C 8766 7759 0 0 0.00% 0.00%
D 8766 7759 19 19 0.22% 0.24%

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 15 79 112434 585.37 932 908 190.5
A 0 23 54671 282.19 932 908 190.5
A 0 226 12529 61.0 932 908 190.5
B 0 214 89994 493.53 937 910 180.5
B 10 16 61543 335.91 937 910 180.5
B 0 219 28612 153.47 937 910 180.5
C 1 16 121580 565.84 916 919 213.2
C 13 61 7133 29.14 916 919 213.2
C 8 128 4379 16.23 916 919 213.2
D 5 233 174344 778.1 916 888 222.9
D 6 225 67317 297.99 916 888 222.9
D 12 233 55844 246.53 916 888 222.9

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