ASTROSAT CZTI

Data Quality Report

Orbit 48001

Creation date: 2024-08-13T13:09:37.170826
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/AS1A13_062T02_9000006384_48001cztM0_level2.fits modeM0/AS1A13_062T02_9000006384_48001cztM0_level2_quad_clean.evt
Size (bytes)578,373,120122,745,600
Size551.6 MB 117.1 MB
Events in quadrant A9,495,786741,800
Events in quadrant B3,536,698864,900
Events in quadrant C4,060,602815,524
Events in quadrant D3,708,718749,361

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0335141
B0162971
C0177671
D0170281

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7833108213.813354%
B7833390.497894%
C78341371.748787%
D7834390.497830%

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 7833 7833 892 892 11.39% 11.39%
B 7833 7833 4 4 0.05% 0.05%
C 7834 7834 116 116 1.48% 1.48%
D 7834 7834 36 36 0.46% 0.46%

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 4163750 23658.71 836 816 176.0
A 0 31 2090090 11873.72 836 816 176.0
A 13 254 12481 66.29 836 816 176.0
B 12 111 22502 123.19 878 850 175.8
B 11 111 20930 114.24 878 850 175.8
B 14 111 20196 110.07 878 850 175.8
C 14 254 525590 2536.1 867 870 206.9
C 1 3 91618 438.61 867 870 206.9
C 14 67 22074 102.48 867 870 206.9
D 11 224 159239 729.47 868 838 217.1
D 2 249 76177 346.95 868 838 217.1
D 14 34 65145 296.15 868 838 217.1

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