ASTROSAT CZTI

Data Quality Report

Orbit 08594

Creation date: 2024-06-27T15:34:43.562695
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/AS1A03_102T01_9000001202_08594cztM0_level2.evt modeM0/AS1A03_102T01_9000001202_08594cztM0_level2_quad_clean.evt
Size (bytes)395,703,360103,705,920
Size377.4 MB 98.9 MB
Events in quadrant A2,829,719675,765
Events in quadrant B3,104,976695,308
Events in quadrant C2,724,387684,300
Events in quadrant D2,903,112652,850

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128032
B0134491
C0125701
D0130801

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6197310.500242%
B6197420.677747%
C6197230.371147%
D6197540.871389%

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 7277 6198 7 7 0.10% 0.11%
B 7277 6197 6 6 0.08% 0.10%
C 7277 6197 0 0 0.00% 0.00%
D 7277 6197 26 26 0.36% 0.42%

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 15 223 41429 285.87 704 689 142.5
A 8 5 30159 206.79 704 689 142.5
A 5 16 15646 104.95 704 689 142.5
B 4 173 164497 1215.63 716 700 134.7
B 0 214 40854 298.0 716 700 134.7
B 0 219 38104 277.6 716 700 134.7
C 13 61 5269 28.41 697 700 160.8
C 14 67 4375 22.85 697 700 160.8
C 8 222 3402 16.8 697 700 160.8
D 7 71 135611 792.06 695 673 170.4
D 13 105 51064 295.79 695 673 170.4
D 2 234 24672 140.87 695 673 170.4

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