ASTROSAT CZTI

Data Quality Report

Orbit 44618

Creation date: 2024-06-27T23:04:34.642006
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_009T03_9000006006_44618cztM0_level2.fits modeM0/AS1A13_009T03_9000006006_44618cztM0_level2_quad_clean.evt
Size (bytes)561,542,400111,729,600
Size535.5 MB 106.6 MB
Events in quadrant A5,759,906765,620
Events in quadrant B3,266,972801,241
Events in quadrant C3,359,692751,891
Events in quadrant D7,899,174613,345

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0223462
B0138312
C0142902
D0279622

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64661592.459016%
B6466520.804207%
C6466580.897000%
D6465100915.607115%

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 7746 6467 118 118 1.52% 1.82%
B 7746 6466 30 30 0.39% 0.46%
C 7745 6466 46 46 0.59% 0.71%
D 7744 6465 1055 1055 13.62% 16.32%

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 1929338 12290.6 757 746 156.9
A 15 223 862865 5494.14 757 746 156.9
A 10 248 15333 92.96 757 746 156.9
B 5 172 121786 812.21 764 743 149.0
B 0 189 59112 391.66 764 743 149.0
B 5 171 35428 232.74 764 743 149.0
C 12 2 250131 1426.36 748 756 174.8
C 3 233 71692 405.74 748 756 174.8
C 14 254 63374 358.16 748 756 174.8
D 13 153 3455835 19079.36 711 691 181.1
D 1 52 1017108 5612.67 711 691 181.1
D 13 249 359643 1982.14 711 691 181.1

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