ASTROSAT CZTI

Data Quality Report

Orbit 22419

Creation date: 2024-06-27T18:40:44.928155
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/AS1A07_007T03_9000003320_22419cztM0_level2.evt modeM0/AS1A07_007T03_9000003320_22419cztM0_level2_quad_clean.evt
Size (bytes)460,298,880100,650,240
Size439.0 MB 96.0 MB
Events in quadrant A3,153,884667,929
Events in quadrant B3,303,034673,659
Events in quadrant C3,220,532644,983
Events in quadrant D3,831,927618,947

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135822
B0139644
C0137062
D0158212

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6346450.709108%
B6345540.851064%
C6345821.292356%
D63451902.994484%

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 7576 6347 0 0 0.00% 0.00%
B 7575 6346 4 4 0.05% 0.06%
C 7575 6345 0 0 0.00% 0.00%
D 7575 6346 128 128 1.69% 2.02%

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 9562 54.15 815 800 161.8
A 3 1 7863 43.65 815 800 161.8
A 0 226 7150 39.24 815 800 161.8
B 3 64 52614 343.15 809 788 151.0
B 0 190 39238 254.59 809 788 151.0
B 4 173 19435 123.47 809 788 151.0
C 14 238 124061 674.83 787 793 182.7
C 1 16 14659 75.91 787 793 182.7
C 0 10 12039 61.57 787 793 182.7
D 1 52 382526 2014.03 790 770 189.5
D 13 249 314200 1653.56 790 770 189.5
D 7 222 83647 437.23 790 770 189.5

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