ASTROSAT CZTI

Data Quality Report

Orbit 05306

Creation date: 2024-06-27T14:53:43.422610
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/AS1G05_240T01_9000000674_05306cztM0_level2.evt modeM0/AS1G05_240T01_9000000674_05306cztM0_level2_quad_clean.evt
Size (bytes)1,962,086,400310,737,600
Size1.8 GB 296.3 MB
Events in quadrant A14,150,6561,867,529
Events in quadrant B14,115,0061,889,960
Events in quadrant C13,834,2711,843,257
Events in quadrant D15,315,7551,771,030

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0647582393
B0645392599
C0637242517
D0689262851

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A062824
B062814
C062836
D062822

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0225
B0224
C0223
D0224

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A296876002.021087%
B295945011.692911%
C296123211.084020%
D295875901.994119%

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 33126 30584 30 30 0.09% 0.10%
B 33126 30558 21 21 0.06% 0.07%
C 33126 30562 0 0 0.00% 0.00%
D 33126 30546 166 166 0.50% 0.54%

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 13 251 349243 494.26 3433 3353 699.8
A 0 50 307346 434.39 3433 3353 699.8
A 14 111 262137 369.79 3433 3353 699.8
B 4 48 253091 374.77 3471 3387 666.3
B 15 204 196419 289.71 3471 3387 666.3
B 12 111 61262 86.86 3471 3387 666.3
C 1 16 738407 946.17 3348 3363 776.9
C 13 61 27323 30.84 3348 3363 776.9
C 7 234 14810 14.73 3348 3363 776.9
D 12 233 721001 876.86 3341 3237 818.6
D 8 195 586491 712.54 3341 3237 818.6
D 1 239 517080 627.74 3341 3237 818.6

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