ASTROSAT CZTI

Data Quality Report

Orbit 39217

Creation date: 2024-06-27T22:01:53.703966
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_054T04_9000005446_39217cztM0_level2.fits modeM0/AS1A12_054T04_9000005446_39217cztM0_level2_quad_clean.evt
Size (bytes)544,487,04081,552,960
Size519.3 MB 77.8 MB
Events in quadrant A2,978,443641,210
Events in quadrant B2,894,239638,561
Events in quadrant C2,501,935597,197
Events in quadrant D11,371,517223,945

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120063
B0120702
C0105852
D0374312

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5256470.894216%
B52561202.283105%
C525650.095129%
D5256365069.444444%

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 7318 5257 39 39 0.53% 0.74%
B 7318 5257 69 69 0.94% 1.31%
C 7318 5257 0 0 0.00% 0.00%
D 7318 5257 2789 2789 38.11% 53.05%

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 444699 3649.84 601 588 121.7
A 13 248 168889 1383.15 601 588 121.7
A 0 8 23448 187.87 601 588 121.7
B 5 255 379708 3404.48 590 575 111.4
B 5 172 184628 1652.73 590 575 111.4
B 12 111 13514 116.19 590 575 111.4
C 15 214 218070 1606.01 579 582 135.4
C 3 233 11066 77.42 579 582 135.4
C 0 10 6192 41.43 579 582 135.4
D 12 235 9312726 97518.03 390 377 95.5
D 2 249 293033 3064.67 390 377 95.5
D 1 47 98997 1032.74 390 377 95.5

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