ASTROSAT CZTI

Data Quality Report

Orbit 05654

Creation date: 2024-06-27T14:57:38.174261
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_05654cztM0_level2.evt modeM0/AS1G06_032T02_9000000730_05654cztM0_level2_quad_clean.evt
Size (bytes)473,443,20067,703,040
Size451.5 MB 64.6 MB
Events in quadrant A3,347,098395,380
Events in quadrant B3,698,938388,646
Events in quadrant C3,361,396395,671
Events in quadrant D3,458,319385,694

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460410
B01535619
C0147136
D0150748

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69581211.739005%
B69541161.668105%
C6958761.092268%
D69571011.451775%

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 8705 6962 29 29 0.33% 0.42%
B 8705 6961 7 7 0.08% 0.10%
C 8705 6962 1 1 0.01% 0.01%
D 8705 6962 27 27 0.31% 0.39%

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 93041 534.13 836 819 172.7
A 13 6 14788 80.91 836 819 172.7
A 0 254 9795 51.99 836 819 172.7
B 15 204 178423 1082.44 848 827 164.1
B 11 51 68254 410.96 848 827 164.1
B 0 214 67358 405.5 848 827 164.1
C 1 16 155873 798.78 817 821 194.1
C 9 16 6890 31.27 817 821 194.1
C 13 61 6597 29.76 817 821 194.1
D 2 152 123957 615.98 811 787 200.0
D 8 195 87980 436.05 811 787 200.0
D 2 33 71097 351.62 811 787 200.0

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