ASTROSAT CZTI

Data Quality Report

Orbit 29359

Creation date: 2024-06-27T20:03:12.031303
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/AS1T03_279T01_9000004218_29359cztM0_level2.evt modeM0/AS1T03_279T01_9000004218_29359cztM0_level2_quad_clean.evt
Size (bytes)907,796,16074,485,440
Size865.7 MB 71.0 MB
Events in quadrant A3,540,240493,979
Events in quadrant B3,799,437491,947
Events in quadrant C4,889,166470,746
Events in quadrant D14,775,598294,636

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151051
B0157121
C0191251
D0487831

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72221632.256993%
B72231892.616641%
C72234335.994739%
D7223509170.483179%

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 7537 7224 9 9 0.12% 0.12%
B 7538 7225 11 11 0.15% 0.15%
C 7538 7225 96 96 1.27% 1.33%
D 7538 7225 4617 4617 61.25% 63.90%

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 13 42107 225.57 904 884 182.8
A 13 254 14486 74.43 904 884 182.8
A 3 137 8532 41.85 904 884 182.8
B 5 255 118614 698.25 890 868 168.6
B 10 245 58065 339.19 890 868 168.6
B 0 244 24908 142.56 890 868 168.6
C 3 233 1335851 6691.39 854 859 199.5
C 14 238 161327 804.31 854 859 199.5
C 14 254 40055 196.46 854 859 199.5
D 1 52 9980572 69092.21 601 584 144.4
D 12 233 1761132 12188.41 601 584 144.4
D 13 153 222573 1536.85 601 584 144.4

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