ASTROSAT CZTI

Data Quality Report

Orbit 33429

Creation date: 2024-06-27T20:48:44.905398
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_046T04_9000004792_33429cztM0_level2.evt modeM0/AS1A11_046T04_9000004792_33429cztM0_level2_quad_clean.evt
Size (bytes)571,438,08084,818,880
Size545.0 MB 80.9 MB
Events in quadrant A2,972,650565,060
Events in quadrant B4,367,244539,888
Events in quadrant C3,021,062548,818
Events in quadrant D6,551,563507,767

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120292
B0168171
C0124011
D0235121

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A581930.051555%
B58194467.664547%
C5819290.498367%
D58195148.833133%

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 7102 5820 0 0 0.00% 0.00%
B 7102 5820 349 349 4.91% 6.00%
C 7102 5820 29 29 0.41% 0.50%
D 7102 5820 462 462 6.51% 7.94%

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 47 367820 2707.08 669 656 135.6
A 13 254 11201 77.75 669 656 135.6
A 7 16 9542 65.52 669 656 135.6
B 5 172 1287161 10366.51 646 629 124.1
B 5 255 179018 1437.41 646 629 124.1
B 0 213 153358 1230.65 646 629 124.1
C 15 214 250901 1674.71 646 649 149.4
C 1 23 91290 606.58 646 649 149.4
C 0 10 82986 551.01 646 649 149.4
D 8 195 2563810 16411.52 634 617 156.2
D 1 52 420467 2688.2 634 617 156.2
D 13 249 280612 1792.74 634 617 156.2

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