ASTROSAT CZTI

Data Quality Report

Orbit 06135

Creation date: 2024-06-27T15:03:12.090749
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/AS1G06_019T01_9000000796_06135cztM0_level2.evt modeM0/AS1G06_019T01_9000000796_06135cztM0_level2_quad_clean.evt
Size (bytes)457,801,92098,311,680
Size436.6 MB 93.8 MB
Events in quadrant A3,262,402642,403
Events in quadrant B3,566,309651,856
Events in quadrant C3,068,468632,279
Events in quadrant D3,537,642609,609

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138223
B0146597
C01345010
D01465915

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01322
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63231582.498814%
B63211973.116595%
C63201021.613924%
D63181622.564103%

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 8669 6323 11 11 0.13% 0.17%
B 8669 6323 38 38 0.44% 0.60%
C 8669 6323 0 0 0.00% 0.00%
D 8669 6323 51 51 0.59% 0.81%

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 8 15 88321 532.15 805 789 164.5
A 0 254 78479 472.32 805 789 164.5
A 0 226 7694 41.98 805 789 164.5
B 3 64 379094 2447.89 806 789 154.5
B 4 81 33157 209.44 806 789 154.5
B 0 219 22717 141.89 806 789 154.5
C 1 16 67322 372.39 768 772 178.7
C 13 61 6202 30.38 768 772 178.7
C 9 54 2622 10.35 768 772 178.7
D 13 169 481629 2508.81 775 750 191.7
D 8 195 34176 174.39 775 750 191.7
D 5 97 24656 124.72 775 750 191.7

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