ASTROSAT CZTI

Data Quality Report

Orbit 13418

Creation date: 2024-06-27T16:40:29.603017
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/AS1A04_103T01_9000001988_13418cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13418cztM0_level2_quad_clean.evt
Size (bytes)510,485,76099,152,640
Size486.8 MB 94.6 MB
Events in quadrant A3,414,583647,456
Events in quadrant B3,509,948664,300
Events in quadrant C3,372,613636,497
Events in quadrant D4,721,933601,327

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142363
B0145162
C0141492
D0184082

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65051672.567256%
B65051842.828593%
C65051051.614143%
D65053124.796311%

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 9116 6506 3 3 0.03% 0.05%
B 9116 6506 6 6 0.07% 0.09%
C 9116 6506 1 1 0.01% 0.02%
D 9116 6506 147 147 1.61% 2.26%

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 52227 292.81 869 853 175.5
A 15 69 14851 79.78 869 853 175.5
A 1 162 7880 40.05 869 853 175.5
B 4 142 54337 328.88 870 849 162.6
B 0 230 37836 227.42 870 849 162.6
B 12 111 18592 109.1 870 849 162.6
C 3 233 81527 422.45 835 840 191.0
C 14 220 36741 187.96 835 840 191.0
C 13 61 6003 27.03 835 840 191.0
D 8 195 611703 3126.2 821 799 195.4
D 13 249 578513 2956.35 821 799 195.4
D 1 52 401664 2051.36 821 799 195.4

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