ASTROSAT CZTI

Data Quality Report

Orbit 47093

Creation date: 2024-06-27T23:31:38.916617
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/AS1C09_003T01_9000006298_47093cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47093cztM0_level2_quad_clean.evt
Size (bytes)510,382,080109,071,360
Size486.7 MB 104.0 MB
Events in quadrant A6,955,676723,879
Events in quadrant B4,117,628738,707
Events in quadrant C3,906,407691,806
Events in quadrant D3,372,255662,231

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0251422
B0172373
C0169922
D0153402

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69702974.261119%
B69692423.472521%
C69693054.376525%
D6969400.573970%

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 7905 6971 116 116 1.47% 1.66%
B 7904 6970 136 136 1.72% 1.95%
C 7904 6970 224 224 2.83% 3.21%
D 7904 6970 39 39 0.49% 0.56%

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 10 83 3938045 25444.55 746 731 154.7
A 9 191 28066 176.65 746 731 154.7
A 7 3 26312 165.31 746 731 154.7
B 3 112 473563 3271.57 744 721 144.5
B 5 32 267775 1847.73 744 721 144.5
B 5 172 214110 1476.43 744 721 144.5
C 15 208 926953 5392.4 728 729 171.8
C 14 254 107932 624.13 728 729 171.8
C 12 2 16084 89.4 728 729 171.8
D 1 52 87948 471.21 735 711 185.1
D 12 233 69098 369.39 735 711 185.1
D 5 171 62148 331.85 735 711 185.1

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