ASTROSAT CZTI

Data Quality Report

Orbit 45404

Creation date: 2024-06-27T23:11:04.067805
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_049T07_9000006056_45404cztM0_level2.fits modeM0/AS1A13_049T07_9000006056_45404cztM0_level2_quad_clean.evt
Size (bytes)438,068,160112,127,040
Size417.8 MB 106.9 MB
Events in quadrant A5,555,234741,118
Events in quadrant B3,483,968771,245
Events in quadrant C3,247,647739,746
Events in quadrant D3,403,076671,089

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0217292
B0151182
C0146282
D0150082

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67711582.333481%
B6771791.166741%
C6771500.738443%
D6771350.516910%

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 7691 6772 19 19 0.25% 0.28%
B 7691 6771 41 41 0.53% 0.61%
C 7691 6772 43 43 0.56% 0.63%
D 7691 6772 27 27 0.35% 0.40%

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 2629767 16940.13 749 732 155.2
A 9 191 22374 139.45 749 732 155.2
A 3 137 8628 50.87 749 732 155.2
B 15 201 392480 2679.89 754 733 146.2
B 5 255 30533 203.86 754 733 146.2
B 0 171 28208 187.95 754 733 146.2
C 14 96 162772 921.13 744 749 175.9
C 6 247 80529 453.56 744 749 175.9
C 14 254 42704 238.52 744 749 175.9
D 11 241 203907 1106.25 730 708 183.7
D 1 52 121270 656.36 730 708 183.7
D 5 222 99622 538.5 730 708 183.7

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