ASTROSAT CZTI

Data Quality Report

Orbit 19095

Creation date: 2024-06-27T17:59:00.753280
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_098T01_9000002836_19095cztM0_level2.evt modeM0/AS1T03_098T01_9000002836_19095cztM0_level2_quad_clean.evt
Size (bytes)487,765,44088,790,400
Size465.2 MB 84.7 MB
Events in quadrant A3,046,452558,669
Events in quadrant B3,427,523573,641
Events in quadrant C3,100,320556,366
Events in quadrant D4,749,643540,313

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135981
B0146891
C0136861
D0188381

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6593610.925224%
B65941422.153473%
C6594991.501365%
D65945097.719139%

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 7128 6594 0 0 0.00% 0.00%
B 7129 6595 29 29 0.41% 0.44%
C 7129 6595 0 0 0.00% 0.00%
D 7129 6595 329 329 4.61% 4.99%

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 9 143 9730 55.61 788 772 161.1
A 13 254 7039 38.91 788 772 161.1
A 0 226 6858 37.78 788 772 161.1
B 7 220 131002 862.14 787 768 151.1
B 10 245 66962 438.2 787 768 151.1
B 4 216 55663 363.4 787 768 151.1
C 14 238 117713 659.22 755 760 177.4
C 0 207 17626 95.07 755 760 177.4
C 5 112 11962 63.14 755 760 177.4
D 7 238 1051191 5672.57 747 725 185.2
D 1 52 465684 2510.8 747 725 185.2
D 11 176 340050 1832.37 747 725 185.2

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