ASTROSAT CZTI

Data Quality Report

Orbit 48132

Creation date: 2024-08-24T09:37:29.194352
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/AS1T05_221T01_9000006404_48132cztM0_level2.fits modeM0/AS1T05_221T01_9000006404_48132cztM0_level2_quad_clean.evt
Size (bytes)348,304,32077,906,880
Size332.2 MB 74.3 MB
Events in quadrant A5,889,589660,776
Events in quadrant B1,031,51338,538
Events in quadrant C2,686,370640,335
Events in quadrant D2,800,618587,856

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0215167
B064410
C0127080
D0130780

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6138600.977517%
B61406140100.000000%
C614060.097720%
D6140180.293160%

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 6140 6139 0 0 0.00% 0.00%
B 6139 6127 0 0 0.00% 0.00%
C 6140 6140 2 2 0.03% 0.03%
D 6140 6140 13 13 0.21% 0.21%

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 3149554 22039.39 685 671 142.9
A 0 31 89591 622.36 685 671 142.9
A 13 254 12011 79.37 685 671 142.9
B 2 177 850580 81044.7 41 40 10.5
B 4 21 6326 598.97 41 40 10.5
B 0 200 5911 559.43 41 40 10.5
C 12 2 20709 125.17 675 677 160.0
C 14 254 13811 82.07 675 677 160.0
C 12 249 13230 78.44 675 677 160.0
D 2 165 104380 605.76 672 650 171.2
D 2 249 33384 191.16 672 650 171.2
D 2 234 31339 179.22 672 650 171.2

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