ASTROSAT CZTI

Data Quality Report

Orbit 20349

Creation date: 2024-06-27T18:14:14.316778
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/AS1A05_163T01_9000003010_20349cztM0_level2.evt modeM0/AS1A05_163T01_9000003010_20349cztM0_level2_quad_clean.evt
Size (bytes)433,077,12093,438,720
Size413.0 MB 89.1 MB
Events in quadrant A3,056,639603,120
Events in quadrant B3,198,203619,277
Events in quadrant C3,178,595592,949
Events in quadrant D3,261,407582,190

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130652
B0134352
C0133672
D0139082

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6192400.645995%
B6192510.823643%
C6192671.082041%
D6192510.823643%

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 7427 6193 0 0 0.00% 0.00%
B 7427 6192 0 0 0.00% 0.00%
C 7427 6192 0 0 0.00% 0.00%
D 7427 6193 38 38 0.51% 0.61%

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 6 16 8709 49.8 791 777 159.3
A 13 254 7149 40.01 791 777 159.3
A 0 226 6717 37.3 791 777 159.3
B 0 198 71569 476.84 793 775 148.5
B 12 111 18067 116.47 793 775 148.5
B 11 111 16136 103.47 793 775 148.5
C 14 238 121322 671.83 769 776 179.4
C 3 9 20761 111.38 769 776 179.4
C 3 233 16744 88.99 769 776 179.4
D 7 238 247173 1323.87 773 751 186.1
D 2 16 82261 437.9 773 751 186.1
D 2 234 22662 117.71 773 751 186.1

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