ASTROSAT CZTI

Data Quality Report

Orbit 43562

Creation date: 2024-06-27T22:53:11.878030
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/AS1A05_174T01_9000005880_43562cztM0_level2.fits modeM0/AS1A05_174T01_9000005880_43562cztM0_level2_quad_clean.evt
Size (bytes)897,946,56078,681,600
Size856.3 MB 75.0 MB
Events in quadrant A6,125,736660,506
Events in quadrant B3,005,458702,586
Events in quadrant C12,497,389465,547
Events in quadrant D11,158,829142,026

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0222811
B0128031
C0410681
D0371561

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A582572512.446352%
B58251051.802575%
C5824349760.044643%
D5824579299.450549%

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 6960 5825 236 236 3.39% 4.05%
B 6960 5825 7 7 0.10% 0.12%
C 6958 5823 3529 3529 50.72% 60.60%
D 6958 5823 2519 2519 36.20% 43.26%

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 0 228 1620840 12027.56 649 636 134.7
A 15 222 885038 6565.35 649 636 134.7
A 10 83 590163 4376.35 649 636 134.7
B 3 42 124365 941.58 675 658 131.4
B 3 25 70801 533.89 675 658 131.4
B 0 230 29532 219.77 675 658 131.4
C 15 142 6644849 60816.79 463 464 109.3
C 15 158 2051893 18776.96 463 464 109.3
C 15 174 695761 6364.13 463 464 109.3
D 4 216 3864068 73528.91 168 162 52.5
D 4 212 3160366 60137.68 168 162 52.5
D 13 187 485698 9239.6 168 162 52.5

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