ASTROSAT CZTI

Data Quality Report

Orbit 16949

Creation date: 2024-06-27T17:29:54.034201
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_206T01_9000002518_16949cztM0_level2.evt modeM0/AS1A05_206T01_9000002518_16949cztM0_level2_quad_clean.evt
Size (bytes)427,608,00099,020,160
Size407.8 MB 94.4 MB
Events in quadrant A3,388,238644,799
Events in quadrant B3,150,859668,671
Events in quadrant C2,995,675650,008
Events in quadrant D3,026,220634,983

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136431
B0127351
C0121781
D0124121

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5728891.553771%
B5729611.064758%
C5729611.064758%
D5729280.488741%

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 7054 5730 42 42 0.60% 0.73%
B 7055 5731 16 16 0.23% 0.28%
C 7055 5731 0 0 0.00% 0.00%
D 7055 5731 8 8 0.11% 0.14%

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 15 174 543243 3740.86 727 713 145.0
A 4 2 23696 158.47 727 713 145.0
A 0 23 14022 91.77 727 713 145.0
B 15 35 79893 589.65 730 713 134.3
B 7 220 65735 484.22 730 713 134.3
B 0 229 49716 364.92 730 713 134.3
C 14 238 111086 664.29 723 729 166.1
C 3 233 60062 357.15 723 729 166.1
C 13 61 4897 25.09 723 729 166.1
D 10 199 90702 517.79 731 710 173.8
D 1 52 61656 350.67 731 710 173.8
D 15 0 45584 258.19 731 710 173.8

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