ASTROSAT CZTI

Data Quality Report

Orbit 32333

Creation date: 2024-06-27T20:38:59.046608
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/AS1A10_005T01_9000004700_32333cztM0_level2.evt modeM0/AS1A10_005T01_9000004700_32333cztM0_level2_quad_clean.evt
Size (bytes)669,078,72082,140,480
Size638.1 MB 78.3 MB
Events in quadrant A2,942,947574,887
Events in quadrant B7,020,162475,226
Events in quadrant C3,217,632527,663
Events in quadrant D6,674,453486,951

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126612
B0251761
C0132951
D0242551

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6043360.595731%
B6043115119.046831%
C60431402.316730%
D604372712.030448%

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 7118 6044 0 0 0.00% 0.00%
B 7118 6044 765 765 10.75% 12.66%
C 7118 6044 42 42 0.59% 0.69%
D 7118 6044 606 606 8.51% 10.03%

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 12 189 47779 319.79 740 727 147.1
A 13 6 17686 115.26 740 727 147.1
A 13 254 12316 78.76 740 727 147.1
B 5 172 2375631 18717.69 669 653 126.9
B 6 159 1770895 13951.64 669 653 126.9
B 0 190 87197 682.07 669 653 126.9
C 0 207 117978 718.14 700 704 163.3
C 14 238 116274 707.71 700 704 163.3
C 0 10 80749 490.17 700 704 163.3
D 8 195 1935088 11880.68 689 673 162.8
D 12 218 584036 3582.87 689 673 162.8
D 13 249 439687 2696.31 689 673 162.8

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