ASTROSAT CZTI

Data Quality Report

Orbit 03659

Creation date: 2024-06-27T14:32:03.689945
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/AS1G05_234T02_9000000474_03659cztM0_level2.evt modeM0/AS1G05_234T02_9000000474_03659cztM0_level2_quad_clean.evt
Size (bytes)210,504,96030,404,160
Size200.8 MB 29.0 MB
Events in quadrant A1,562,659173,462
Events in quadrant B1,671,743175,098
Events in quadrant C1,417,847170,604
Events in quadrant D1,496,200166,258

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0682
B0682
C0682
D0680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0698969
B0712690
C0675365
D0706270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3304230.696126%
B3304160.484262%
C3303100.302755%
D3300451.363636%

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 3307 3307 9 9 0.27% 0.27%
B 3318 3307 3 3 0.09% 0.09%
C 3312 3306 2 2 0.06% 0.06%
D 3302 3302 25 25 0.76% 0.76%

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 50 68733 884.96 377 369 77.3
A 13 251 19176 243.45 377 369 77.3
A 13 14 8267 102.24 377 369 77.3
B 15 204 135013 1786.88 381 372 75.3
B 7 252 19284 250.99 381 372 75.3
B 15 54 9508 121.25 381 372 75.3
C 7 220 11764 135.36 358 358 84.3
C 13 61 2986 31.19 358 358 84.3
C 1 16 2081 20.45 358 358 84.3
D 13 239 102776 1175.67 356 346 87.1
D 2 14 13798 154.4 356 346 87.1
D 13 223 13424 150.11 356 346 87.1

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
Veto Counter