ASTROSAT CZTI

Data Quality Report

Orbit 11162

Creation date: 2024-06-27T16:09:03.247413
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/AS1A04_058T01_9000001628_11162cztM0_level2.evt modeM0/AS1A04_058T01_9000001628_11162cztM0_level2_quad_clean.evt
Size (bytes)2,149,018,560133,905,600
Size2.0 GB 127.7 MB
Events in quadrant A18,464,335581,677
Events in quadrant B14,782,795595,149
Events in quadrant C11,366,769603,377
Events in quadrant D18,760,451529,399

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09243521089
B07576114770
C06306110949
D09083917099

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0632112
B0637115
C0632122
D0631115

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07517
B07616
C07514
D07514

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2516119087.583164%
B253988563.370344%
C255261050.411345%
D2527910754.252542%

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 43277 25666 1138 1138 2.63% 4.43%
B 42237 25957 372 372 0.88% 1.43%
C 43734 26089 6 6 0.01% 0.02%
D 43723 25810 705 705 1.61% 2.73%

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 14 238 3125567 5552.28 2811 2748 562.4
A 8 5 3057517 5431.29 2811 2748 562.4
A 8 15 1235048 2190.99 2811 2748 562.4
B 4 239 2307742 4261.79 2945 2871 540.8
B 15 204 231422 422.6 2945 2871 540.8
B 0 214 165908 301.46 2945 2871 540.8
C 5 128 33110 45.7 2899 2908 660.8
C 13 61 21724 28.47 2899 2908 660.8
C 9 204 18881 24.17 2899 2908 660.8
D 10 157 3646271 5138.28 2757 2698 709.1
D 1 52 832317 1169.95 2757 2698 709.1
D 12 16 719870 1011.38 2757 2698 709.1

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