ASTROSAT CZTI

Data Quality Report

Orbit 22415

Creation date: 2024-06-27T18:40:53.600946
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/AS1T03_149T03_9000003318_22415cztM0_level2.evt modeM0/AS1T03_149T03_9000003318_22415cztM0_level2_quad_clean.evt
Size (bytes)372,032,64071,671,680
Size354.8 MB 68.4 MB
Events in quadrant A2,541,183454,195
Events in quadrant B2,680,061458,858
Events in quadrant C2,577,080436,885
Events in quadrant D3,092,430433,761

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112681
B0115601
C0112741
D0129911

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5525681.230769%
B5525671.212670%
C5525811.466063%
D55251071.936652%

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 5524 5524 0 0 0.00% 0.00%
B 5524 5524 1 1 0.02% 0.02%
C 5524 5524 0 0 0.00% 0.00%
D 5524 5524 40 40 0.72% 0.72%

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 13 254 6930 46.84 656 642 134.2
A 3 137 5843 38.75 656 642 134.2
A 0 226 5654 37.34 656 642 134.2
B 0 244 72005 566.32 653 634 126.0
B 12 111 15605 118.79 653 634 126.0
B 0 197 15120 114.94 653 634 126.0
C 14 238 98905 657.84 631 635 149.4
C 1 16 19247 124.59 631 635 149.4
C 13 61 4283 24.42 631 635 149.4
D 1 52 594178 3768.82 639 620 157.5
D 9 85 47062 294.89 639 620 157.5
D 2 234 24826 153.7 639 620 157.5

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