ASTROSAT CZTI

Data Quality Report

Orbit 47741

Creation date: 2024-07-27T11:06:30.688821
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_213T01_9000006344_47741cztM0_level2.fits modeM0/AS1T05_213T01_9000006344_47741cztM0_level2_quad_clean.evt
Size (bytes)1,661,310,720377,516,160
Size1.5 GB 360.0 MB
Events in quadrant A23,904,3592,455,974
Events in quadrant B12,180,3792,538,583
Events in quadrant C11,264,1812,498,134
Events in quadrant D12,307,5742,298,321

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04820
B04820
C04820
D04820

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0884972
B0530452
C0518422
D0541382

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2381311584.862890%
B238147153.002436%
C238144601.931637%
D238144521.898043%

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 25263 23815 155 155 0.61% 0.65%
B 25264 23816 142 142 0.56% 0.60%
C 25264 23816 259 259 1.03% 1.09%
D 25264 23816 207 207 0.82% 0.87%

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 13030524 24179.94 2608 2548 538.8
A 7 3 426205 786.31 2608 2548 538.8
A 9 191 192181 351.96 2608 2548 538.8
B 0 200 759884 1517.63 2596 2508 499.1
B 5 32 423438 843.46 2596 2508 499.1
B 5 255 395810 788.1 2596 2508 499.1
C 14 254 1042906 1734.09 2568 2578 599.9
C 12 2 150185 246.04 2568 2578 599.9
C 0 207 35287 54.52 2568 2578 599.9
D 10 181 812510 1264.64 2590 2507 640.5
D 2 165 714399 1111.46 2590 2507 640.5
D 2 249 271957 420.69 2590 2507 640.5

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