ASTROSAT CZTI

Data Quality Report

Orbit 07453

Creation date: 2024-06-27T15:19:57.012436
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/AS1A02_108T01_9000001024_07453cztM0_level2.evt modeM0/AS1A02_108T01_9000001024_07453cztM0_level2_quad_clean.evt
Size (bytes)468,884,16074,407,680
Size447.2 MB 71.0 MB
Events in quadrant A3,224,418458,591
Events in quadrant B3,321,415465,196
Events in quadrant C3,211,674450,679
Events in quadrant D4,007,220431,193

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137613
B0140162
C0137742
D0165552

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6413841.309839%
B6413791.231873%
C6413510.795260%
D64131292.011539%

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 7683 6414 0 0 0.00% 0.00%
B 7683 6414 1 1 0.01% 0.02%
C 7683 6414 0 0 0.00% 0.00%
D 7683 6414 39 39 0.51% 0.61%

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 0 226 8153 44.13 833 817 166.2
A 0 128 7443 39.86 833 817 166.2
A 12 194 7115 37.88 833 817 166.2
B 0 214 63993 402.9 838 821 156.8
B 12 111 15533 93.83 838 821 156.8
B 11 111 12571 74.94 838 821 156.8
C 9 68 87354 471.44 800 804 183.6
C 13 61 6273 29.79 800 804 183.6
C 1 16 4284 18.96 800 804 183.6
D 1 20 342427 1759.69 795 770 194.2
D 12 221 183239 939.8 795 770 194.2
D 13 105 118195 604.79 795 770 194.2

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