ASTROSAT CZTI

Data Quality Report

Orbit 30392

Creation date: 2024-06-27T20:14:37.997242
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/AS1T04_006T01_9000004370_30392cztM0_level2.evt modeM0/AS1T04_006T01_9000004370_30392cztM0_level2_quad_clean.evt
Size (bytes)1,896,534,720290,692,800
Size1.8 GB 277.2 MB
Events in quadrant A11,631,5831,813,401
Events in quadrant B18,192,5161,826,066
Events in quadrant C11,853,1961,781,337
Events in quadrant D14,148,9111,739,245

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0499644
B0722344
C0495645
D0566754

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04860
B04860
C04860
D04860

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A238963641.523267%
B238964401.841312%
C238954291.795355%
D238958013.352166%

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 26371 23896 60 60 0.23% 0.25%
B 26371 23896 3 3 0.01% 0.01%
C 26370 23895 2 2 0.01% 0.01%
D 26370 23895 520 520 1.97% 2.18%

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 0 13 351958 601.15 2898 2839 580.8
A 8 192 46383 74.98 2898 2839 580.8
A 13 254 46190 74.65 2898 2839 580.8
B 6 159 6521571 11821.94 2871 2792 551.4
B 0 229 147799 262.97 2871 2792 551.4
B 0 190 104083 183.69 2871 2792 551.4
C 14 238 454050 693.49 2801 2819 650.7
C 3 233 381708 582.31 2801 2819 650.7
C 2 114 55376 80.77 2801 2819 650.7
D 8 195 1072219 1566.44 2800 2734 682.7
D 13 104 965322 1409.87 2800 2734 682.7
D 12 233 417584 607.62 2800 2734 682.7

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