ASTROSAT CZTI

Data Quality Report

Orbit 44701

Creation date: 2024-06-27T23:05:38.488656
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/AS1A13_080T01_9000006012_44701cztM0_level2.fits modeM0/AS1A13_080T01_9000006012_44701cztM0_level2_quad_clean.evt
Size (bytes)575,331,840101,419,200
Size548.7 MB 96.7 MB
Events in quadrant A5,252,547699,216
Events in quadrant B6,007,995644,396
Events in quadrant C3,160,196674,612
Events in quadrant D6,366,967593,589

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0207131
B0223651
C0142891
D0235418

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65751101.673004%
B657687513.305961%
C6576871.322993%
D65754697.133080%

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 7495 6576 22 22 0.29% 0.33%
B 7496 6577 610 610 8.14% 9.27%
C 7496 6577 66 66 0.88% 1.00%
D 7495 6576 492 492 6.56% 7.48%

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 2277082 15146.13 718 703 150.3
A 13 248 84173 555.38 718 703 150.3
A 12 227 51013 334.74 718 703 150.3
B 4 171 811438 6071.88 683 665 133.5
B 5 255 465783 3483.26 683 665 133.5
B 0 219 465596 3481.86 683 665 133.5
C 12 2 145048 884.27 689 692 163.2
C 15 208 95999 583.82 689 692 163.2
C 12 250 77169 468.47 689 692 163.2
D 11 241 1088241 6348.49 675 653 171.3
D 13 249 709627 4138.44 675 653 171.3
D 1 52 405839 2365.16 675 653 171.3

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