ASTROSAT CZTI

Data Quality Report

Orbit 08210

Creation date: 2024-06-27T15:29:44.865203
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/AS1G07_034T01_9000001134_08210cztM0_level2.evt modeM0/AS1G07_034T01_9000001134_08210cztM0_level2_quad_clean.evt
Size (bytes)469,391,04097,410,240
Size447.6 MB 92.9 MB
Events in quadrant A3,603,458611,374
Events in quadrant B3,398,658621,122
Events in quadrant C3,192,041621,740
Events in quadrant D3,530,864593,180

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157463
B0150972
C0147462
D0156632

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7219540.748026%
B7219400.554093%
C7219180.249342%
D7219540.748026%

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 7694 7221 10 10 0.13% 0.14%
B 7694 7221 2 2 0.03% 0.03%
C 7694 7221 0 0 0.00% 0.00%
D 7694 7221 21 21 0.27% 0.29%

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 5 112 265259 1526.5 842 825 173.2
A 5 16 41548 235.08 842 825 173.2
A 15 79 27217 152.35 842 825 173.2
B 0 214 38846 231.3 849 828 164.4
B 12 111 16746 96.84 849 828 164.4
B 0 213 15738 90.71 849 828 164.4
C 13 61 6259 28.62 816 820 190.0
C 14 67 4027 16.88 816 820 190.0
C 12 4 2949 11.2 816 820 190.0
D 1 52 150550 743.9 816 790 201.3
D 2 152 110652 545.71 816 790 201.3
D 2 14 47191 230.49 816 790 201.3

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