ASTROSAT CZTI

Data Quality Report

Orbit 36029

Creation date: 2022-08-09T21:35:12.789738
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_36029cztM0_level2.evt modeM0/AS1T04_069T01_9000005158_36029cztM0_level2_quad_clean.evt
Size (bytes)436,654,08047,511,360
Size416.4 MB 45.3 MB
Events in quadrant A2,640,158276,692
Events in quadrant B3,047,023274,059
Events in quadrant C3,350,025273,200
Events in quadrant D3,842,034258,075

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 7169 5078 0 0 0.00% 0.00%
B 7169 5078 92 92 1.28% 1.81%
C 7169 5078 135 135 1.88% 2.66%
D 7169 5078 229 229 3.19% 4.51%

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 163567 1280.54 636 624 127.2
A 13 254 7805 56.43 636 624 127.2
A 8 144 7454 53.68 636 624 127.2
B 5 236 212536 1792.67 629 614 118.2
B 5 255 112969 950.42 629 614 118.2
B 5 172 91420 768.14 629 614 118.2
C 9 187 524960 3706.28 615 620 141.5
C 0 10 211128 1487.97 615 620 141.5
C 15 214 210131 1480.92 615 620 141.5
D 13 249 653832 4458.14 606 591 146.5
D 12 227 461647 3146.54 606 591 146.5
D 12 233 88256 598.28 606 591 146.5

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