ASTROSAT CZTI

Data Quality Report

Orbit 29078

Creation date: 2024-06-27T20:00:02.709855
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/AS1A10_094T18_9000004174_29078cztM0_level2.evt modeM0/AS1A10_094T18_9000004174_29078cztM0_level2_quad_clean.evt
Size (bytes)282,150,72068,034,240
Size269.1 MB 64.9 MB
Events in quadrant A1,553,508476,601
Events in quadrant B1,704,294476,958
Events in quadrant C1,544,095445,035
Events in quadrant D3,509,544419,029

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A069050
B072790
C068800
D0127620

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A342120.058462%
B3421320.935399%
C342180.233850%
D34212818.213973%

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 3420 3420 0 0 0.00% 0.00%
B 3420 3420 20 20 0.58% 0.58%
C 3421 3421 0 0 0.00% 0.00%
D 3421 3421 329 329 9.62% 9.62%

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 13 254 7019 82.88 399 392 80.0
A 15 174 6803 80.18 399 392 80.0
A 13 6 4450 50.75 399 392 80.0
B 10 246 39375 516.83 398 389 75.4
B 5 255 34370 450.48 398 389 75.4
B 0 182 29678 388.28 398 389 75.4
C 14 238 62825 717.45 372 376 87.0
C 2 16 19298 217.39 372 376 87.0
C 2 114 8206 89.96 372 376 87.0
D 1 52 732200 8336.98 365 354 87.8
D 8 195 517985 5896.7 365 354 87.8
D 7 80 411494 4683.59 365 354 87.8

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