ASTROSAT CZTI

Data Quality Report

Orbit 34116

Creation date: 2024-06-27T20:56:41.007370
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/AS1A11_097T08_9000004874_34116cztM0_level2.evt modeM0/AS1A11_097T08_9000004874_34116cztM0_level2_quad_clean.evt
Size (bytes)495,524,16081,377,280
Size472.6 MB 77.6 MB
Events in quadrant A2,532,558537,312
Events in quadrant B3,179,120552,415
Events in quadrant C3,692,427525,997
Events in quadrant D5,239,991473,489

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0370
B0370
C0370
D0370

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109373
B0129002
C0143132
D0193082

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A535850.093318%
B5358520.970511%
C53582013.751400%
D53585119.537141%

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 9003 5360 0 0 0.00% 0.00%
B 9003 5360 22 22 0.24% 0.41%
C 9003 5360 173 173 1.92% 3.23%
D 9003 5360 450 450 5.00% 8.40%

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 10 83 19962 148.97 643 632 129.8
A 13 6 14303 105.36 643 632 129.8
A 13 254 9487 68.24 643 632 129.8
B 0 189 182125 1486.45 644 629 122.1
B 5 172 153189 1249.47 644 629 122.1
B 0 190 80768 656.34 644 629 122.1
C 0 10 815381 5702.22 617 622 142.9
C 15 214 230676 1610.07 617 622 142.9
C 14 254 155102 1081.15 617 622 142.9
D 2 250 1452416 9269.57 594 580 156.6
D 8 195 733611 4680.2 594 580 156.6
D 13 249 206095 1312.16 594 580 156.6

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