ASTROSAT CZTI

Data Quality Report

Orbit 09254

Creation date: 2024-06-27T15:43:15.883844
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/AS1A03_091T02_9000001292_09254cztM0_level2.evt modeM0/AS1A03_091T02_9000001292_09254cztM0_level2_quad_clean.evt
Size (bytes)220,760,64044,904,960
Size210.5 MB 42.8 MB
Events in quadrant A1,728,407281,263
Events in quadrant B1,642,763285,622
Events in quadrant C1,508,193275,633
Events in quadrant D1,567,114269,587

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0734431
B0719536
C0705447
D0722349

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0700
B0700
C0700
D0700

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A349480.228964%
B349140.114580%
C348520.057389%
D3487100.286779%

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 3509 3509 2 2 0.06% 0.06%
B 3509 3507 3 3 0.09% 0.09%
C 3509 3508 1 1 0.03% 0.03%
D 3509 3508 11 11 0.31% 0.31%

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 5 160377 1893.9 399 391 84.5
A 1 162 19591 227.29 399 391 84.5
A 0 226 3743 39.68 399 391 84.5
B 0 214 45976 589.86 397 389 77.3
B 4 173 18673 236.58 397 389 77.3
B 0 187 18441 233.58 397 389 77.3
C 9 68 15132 164.16 382 383 89.8
C 13 61 2912 28.15 382 383 89.8
C 8 222 2044 18.49 382 383 89.8
D 10 199 38091 383.69 383 373 98.3
D 2 136 20519 204.94 383 373 98.3
D 7 71 20420 203.93 383 373 98.3

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