ASTROSAT CZTI

Data Quality Report

Orbit 40036

Creation date: 2024-06-27T22:11:32.671697
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/AS1A12_054T03_9000005516_40036cztM0_level2.fits modeM0/AS1A12_054T03_9000005516_40036cztM0_level2_quad_clean.evt
Size (bytes)411,039,36088,364,160
Size392.0 MB 84.3 MB
Events in quadrant A2,884,141610,617
Events in quadrant B3,144,095605,072
Events in quadrant C3,321,460602,640
Events in quadrant D5,439,913474,572

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0330

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121223
B0132932
C0134352
D0200372

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5471190.347286%
B54712624.788887%
C5471921.681594%
D547195617.473954%

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 8757 5473 5 5 0.06% 0.09%
B 8757 5473 134 134 1.53% 2.45%
C 8757 5473 71 71 0.81% 1.30%
D 8757 5473 859 859 9.81% 15.70%

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 460244 3720.62 601 589 123.5
A 6 10 56255 450.58 601 589 123.5
A 9 143 18262 143.05 601 589 123.5
B 4 171 744227 6365.42 594 577 116.8
B 5 32 42263 356.82 594 577 116.8
B 0 221 18349 152.12 594 577 116.8
C 9 187 738300 5385.28 587 591 137.0
C 15 214 239417 1743.43 587 591 137.0
C 0 10 23816 169.54 587 591 137.0
D 12 227 2940671 22632.31 528 514 129.9
D 1 47 182580 1401.48 528 514 129.9
D 2 250 143385 1099.77 528 514 129.9

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