ASTROSAT CZTI

Data Quality Report

Orbit 05193

Creation date: 2024-06-27T14:52:28.035627
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/AS1G05_104T01_9000000656_05193cztM0_level2.evt modeM0/AS1G05_104T01_9000000656_05193cztM0_level2_quad_clean.evt
Size (bytes)423,480,96078,315,840
Size403.9 MB 74.7 MB
Events in quadrant A2,994,825482,254
Events in quadrant B3,082,887485,937
Events in quadrant C2,889,735486,395
Events in quadrant D3,414,270462,067

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134623
B0135202
C0132032
D0148542

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6522220.337320%
B6522330.505980%
C652240.061331%
D6522711.088623%

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 7647 6523 4 4 0.05% 0.06%
B 7647 6523 4 4 0.05% 0.06%
C 7647 6523 0 0 0.00% 0.00%
D 7647 6523 60 60 0.78% 0.92%

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 50 61170 394.86 751 734 153.1
A 4 2 36148 231.38 751 734 153.1
A 12 194 7459 43.94 751 734 153.1
B 4 48 45167 306.6 765 749 144.9
B 0 219 33235 224.24 765 749 144.9
B 0 183 16080 105.83 765 749 144.9
C 1 16 22555 130.07 733 737 167.7
C 13 61 6112 32.04 733 737 167.7
C 14 67 4570 22.85 733 737 167.7
D 2 136 209533 1178.91 726 706 177.1
D 13 53 158136 888.75 726 706 177.1
D 13 105 100961 565.98 726 706 177.1

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