ASTROSAT CZTI

Data Quality Report

Orbit 42869

Creation date: 2024-06-27T22:45:12.211708
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_138T01_9000005828_42869cztM0_level2.fits modeM0/AS1T05_138T01_9000005828_42869cztM0_level2_quad_clean.evt
Size (bytes)351,993,60088,001,280
Size335.7 MB 83.9 MB
Events in quadrant A3,020,913586,434
Events in quadrant B2,561,303604,822
Events in quadrant C2,711,358586,471
Events in quadrant D4,309,717504,067

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123122
B0113982
C0114242
D0166182

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5473350.639503%
B5473240.438516%
C5473100.182715%
D54734568.331811%

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 7117 5474 17 17 0.24% 0.31%
B 7117 5474 12 12 0.17% 0.22%
C 7117 5474 4 4 0.06% 0.07%
D 7117 5474 463 463 6.51% 8.46%

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 592526 4846.97 589 577 122.1
A 15 237 72573 589.51 589 577 122.1
A 12 189 55730 451.6 589 577 122.1
B 0 190 56018 485.66 590 574 114.2
B 5 172 51538 446.42 590 574 114.2
B 4 171 36172 311.82 590 574 114.2
C 15 214 219749 1592.34 582 585 137.6
C 0 207 78424 565.54 582 585 137.6
C 12 2 51892 372.77 582 585 137.6
D 12 6 1202668 8591.47 560 544 139.9
D 2 249 255867 1824.77 560 544 139.9
D 12 233 235048 1675.98 560 544 139.9

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