ASTROSAT CZTI

Data Quality Report

Orbit 05650

Creation date: 2024-06-27T14:57:36.262539
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/AS1G06_032T02_9000000730_05650cztM0_level2.evt modeM0/AS1G06_032T02_9000000730_05650cztM0_level2_quad_clean.evt
Size (bytes)581,785,92086,184,000
Size554.8 MB 82.2 MB
Events in quadrant A3,489,187531,845
Events in quadrant B5,079,417516,506
Events in quadrant C3,968,586527,680
Events in quadrant D4,567,823505,765

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01562

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015836132
B020423155
C016883118
D019051198

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7582921.213400%
B75733394.476429%
C7590851.119895%
D75741612.125693%

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 7828 7626 2 2 0.03% 0.03%
B 7828 7623 134 134 1.71% 1.76%
C 7828 7631 12 12 0.15% 0.16%
D 7828 7618 27 27 0.34% 0.35%

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 25096 132.08 889 870 183.4
A 7 16 12231 61.94 889 870 183.4
A 0 254 11809 59.64 889 870 183.4
B 10 16 964908 5628.55 887 864 171.3
B 15 204 372047 2167.14 887 864 171.3
B 4 48 128366 744.42 887 864 171.3
C 1 16 525551 2603.72 858 860 201.5
C 5 250 69295 339.6 858 860 201.5
C 5 233 10826 49.45 858 860 201.5
D 1 20 780781 3707.45 854 827 210.4
D 2 136 221428 1048.61 854 827 210.4
D 8 195 131066 619.08 854 827 210.4

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