ASTROSAT CZTI

Data Quality Report

Orbit 36030

Creation date: 2022-08-09T21:47:31.680907
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/AS1T04_069T01_9000005158_36030cztM0_level2.evt modeM0/AS1T04_069T01_9000005158_36030cztM0_level2_quad_clean.evt
Size (bytes)475,971,84049,487,040
Size453.9 MB 47.2 MB
Events in quadrant A2,548,453303,825
Events in quadrant B2,865,204305,440
Events in quadrant C4,158,691275,396
Events in quadrant D4,509,682268,714

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 7060 4908 0 0 0.00% 0.00%
B 7060 4908 56 56 0.79% 1.14%
C 7060 4908 425 425 6.02% 8.66%
D 7060 4908 356 356 5.04% 7.25%

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 10 83 161368 1307.7 614 603 122.9
A 13 254 7570 56.67 614 603 122.9
A 13 6 7077 52.66 614 603 122.9
B 5 236 177810 1554.32 607 591 114.0
B 5 255 166261 1453.03 607 591 114.0
B 4 171 54542 473.18 607 591 114.0
C 9 187 1466264 11083.74 578 584 132.2
C 0 10 224117 1690.4 578 584 132.2
C 15 214 200882 1514.69 578 584 132.2
D 12 227 1623073 11397.49 584 571 142.4
D 10 118 138426 968.38 584 571 142.4
D 12 233 89985 628.1 584 571 142.4

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