ASTROSAT CZTI

Data Quality Report

Orbit 28568

Creation date: 2024-06-27T19:53:26.418298
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_110T01_9000004104_28568cztM0_level2.evt modeM0/AS1A10_110T01_9000004104_28568cztM0_level2_quad_clean.evt
Size (bytes)517,020,480102,499,200
Size493.1 MB 97.8 MB
Events in quadrant A3,529,903659,012
Events in quadrant B3,630,594671,756
Events in quadrant C3,679,188638,821
Events in quadrant D4,319,215622,776

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150052
B0152202
C0152753
D0173852

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7356690.938010%
B7357700.951475%
C7356961.305057%
D73561662.256661%

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 9021 7356 0 0 0.00% 0.00%
B 9022 7357 5 5 0.06% 0.07%
C 9021 7356 0 0 0.00% 0.00%
D 9021 7356 127 127 1.41% 1.73%

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 13 254 10622 52.52 912 893 185.2
A 8 192 9919 48.72 912 893 185.2
A 3 137 8857 42.99 912 893 185.2
B 4 171 101483 579.34 896 873 173.7
B 12 111 22067 122.04 896 873 173.7
B 11 111 20065 110.51 896 873 173.7
C 14 238 137910 667.17 869 873 205.4
C 7 247 107857 520.86 869 873 205.4
C 7 220 17521 81.05 869 873 205.4
D 1 52 679416 3265.92 873 852 207.8
D 8 195 254731 1221.91 873 852 207.8
D 2 250 69744 331.58 873 852 207.8

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