ASTROSAT CZTI

Data Quality Report

Orbit 13003

Creation date: 2024-06-27T16:34:58.225315
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/AS1G08_055T01_9000001912_13003cztM0_level2.evt modeM0/AS1G08_055T01_9000001912_13003cztM0_level2_quad_clean.evt
Size (bytes)558,506,88091,238,400
Size532.6 MB 87.0 MB
Events in quadrant A3,694,852583,049
Events in quadrant B5,630,971536,771
Events in quadrant C3,250,891583,871
Events in quadrant D3,845,609554,529

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156492
B0214521
C0148001
D0165221

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72421441.988401%
B7242103414.277824%
C7242540.745650%
D72422243.093068%

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 7513 7244 21 21 0.28% 0.29%
B 7513 7244 579 579 7.71% 7.99%
C 7513 7244 1 1 0.01% 0.01%
D 7513 7244 160 160 2.13% 2.21%

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 12 189 94977 547.87 846 827 171.8
A 15 223 75225 432.93 846 827 171.8
A 1 162 67269 386.64 846 827 171.8
B 4 239 1999655 13464.05 784 763 148.5
B 3 64 298806 2007.54 784 763 148.5
B 0 85 96170 642.64 784 763 148.5
C 8 128 10333 49.66 827 830 191.4
C 14 234 7604 35.4 827 830 191.4
C 8 112 5976 26.89 827 830 191.4
D 1 52 688371 3486.9 818 793 197.2
D 8 195 50071 249.9 818 793 197.2
D 2 234 32835 162.49 818 793 197.2

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