ASTROSAT CZTI

Data Quality Report

Orbit 09465

Creation date: 2024-06-27T15:46:30.106834
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/AS1A03_051T01_9000001346_09465cztM0_level2.evt modeM0/AS1A03_051T01_9000001346_09465cztM0_level2_quad_clean.evt
Size (bytes)431,498,88097,819,200
Size411.5 MB 93.3 MB
Events in quadrant A3,633,699655,371
Events in quadrant B3,031,794647,047
Events in quadrant C2,798,981627,378
Events in quadrant D3,204,576622,658

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147772
B0128401
C0122471
D0134401

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58721292.196866%
B5872831.413488%
C5872570.970708%
D58721312.230926%

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 7152 5872 15 15 0.21% 0.26%
B 7152 5873 1 1 0.01% 0.02%
C 7152 5873 6 6 0.08% 0.10%
D 7152 5873 54 54 0.76% 0.92%

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 8 5 547296 3610.16 753 740 151.4
A 1 162 87896 575.69 753 740 151.4
A 1 178 30538 196.82 753 740 151.4
B 0 214 76596 542.32 741 727 139.9
B 0 219 27639 192.37 741 727 139.9
B 0 229 18606 127.8 741 727 139.9
C 14 234 34059 205.14 707 711 162.6
C 12 4 5488 29.39 707 711 162.6
C 13 61 5267 28.03 707 711 162.6
D 8 195 149110 814.52 717 700 182.2
D 12 233 110896 604.79 717 700 182.2
D 7 71 72864 396.06 717 700 182.2

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