ASTROSAT CZTI

Data Quality Report

Orbit 09783

Creation date: 2024-06-27T15:50:35.840968
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_080T01_9000001392_09783cztM0_level2.evt modeM0/AS1A03_080T01_9000001392_09783cztM0_level2_quad_clean.evt
Size (bytes)456,287,04088,404,480
Size435.1 MB 84.3 MB
Events in quadrant A3,167,535551,177
Events in quadrant B3,520,795565,807
Events in quadrant C3,183,744563,820
Events in quadrant D3,496,967534,942

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136563
B0147052
C0136582
D0148642

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6618400.604412%
B6618931.405258%
C6618470.710184%
D6618681.027501%

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 9119 6620 0 0 0.00% 0.00%
B 9119 6620 25 25 0.27% 0.38%
C 9119 6620 3 3 0.03% 0.05%
D 9119 6620 29 29 0.32% 0.44%

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 11057 62.93 817 801 163.0
A 0 226 7487 41.02 817 801 163.0
A 12 194 6843 37.07 817 801 163.0
B 4 239 138366 889.23 830 812 154.7
B 0 214 71645 457.91 830 812 154.7
B 0 187 51730 329.16 830 812 154.7
C 14 234 21782 112.86 809 814 185.8
C 13 61 6085 28.37 809 814 185.8
C 8 222 2867 11.05 809 814 185.8
D 2 152 309302 1596.08 791 772 193.3
D 2 14 72310 370.08 791 772 193.3
D 7 71 58740 299.88 791 772 193.3

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