ASTROSAT CZTI

Data Quality Report

Orbit 42929

Creation date: 2024-06-27T22:45:55.601519
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_143T01_9000005830_42929cztM0_level2.fits modeM0/AS1T05_143T01_9000005830_42929cztM0_level2_quad_clean.evt
Size (bytes)544,455,36081,443,520
Size519.2 MB 77.7 MB
Events in quadrant A3,300,440628,890
Events in quadrant B9,544,351263,099
Events in quadrant C2,795,824619,690
Events in quadrant D4,051,242539,386

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133802
B0325783
C0121902
D0164552

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5932260.438301%
B5931352859.484067%
C593150.084303%
D59314106.912831%

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 7245 5933 17 17 0.23% 0.29%
B 7244 5931 3312 3312 45.72% 55.84%
C 7244 5932 2 2 0.03% 0.03%
D 7244 5932 376 376 5.19% 6.34%

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 633937 4819.46 634 619 131.4
A 15 222 192390 1459.35 634 619 131.4
A 13 248 13230 95.97 634 619 131.4
B 4 81 7859057 103015.83 388 377 76.3
B 5 172 52387 681.78 388 377 76.3
B 3 112 33740 437.34 388 377 76.3
C 15 214 260044 1785.13 622 626 145.3
C 14 254 66398 452.6 622 626 145.3
C 12 249 16767 111.07 622 626 145.3
D 10 118 589966 4004.98 600 583 147.2
D 12 6 465749 3160.9 600 583 147.2
D 2 249 285133 1933.58 600 583 147.2

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