ASTROSAT CZTI

Data Quality Report

Orbit 18074

Creation date: 2024-06-27T17:44:43.656676
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/AS1A06_006T01_9000002684_18074cztM0_level2.evt modeM0/AS1A06_006T01_9000002684_18074cztM0_level2_quad_clean.evt
Size (bytes)502,816,32078,641,280
Size479.5 MB 75.0 MB
Events in quadrant A3,579,963489,141
Events in quadrant B3,353,691493,458
Events in quadrant C3,265,388477,390
Events in quadrant D4,586,352466,621

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148972
B0139932
C0138862
D0180202

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65193204.908728%
B6520911.395706%
C6520861.319018%
D65202353.604294%

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 7609 6520 0 0 0.00% 0.00%
B 7610 6521 13 13 0.17% 0.20%
C 7610 6521 0 0 0.00% 0.00%
D 7610 6521 141 141 1.85% 2.16%

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 14 111 415071 2529.43 817 801 163.8
A 15 174 12654 72.37 817 801 163.8
A 4 2 12333 70.41 817 801 163.8
B 3 64 113655 728.14 817 799 155.0
B 0 189 29149 182.91 817 799 155.0
B 12 111 18446 113.86 817 799 155.0
C 14 238 123951 671.34 789 796 183.4
C 3 233 48545 260.29 789 796 183.4
C 9 160 6428 30.7 789 796 183.4
D 7 238 821487 4228.18 792 770 194.1
D 5 222 312093 1603.88 792 770 194.1
D 1 52 153309 785.85 792 770 194.1

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