ASTROSAT CZTI

Data Quality Report

Orbit 03705

Creation date: 2024-06-27T14:32:38.741690
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/AS1G05_009T01_9000000482_03705cztM0_level2.evt modeM0/AS1G05_009T01_9000000482_03705cztM0_level2_quad_clean.evt
Size (bytes)584,354,88069,514,560
Size557.3 MB 66.3 MB
Events in quadrant A3,336,645427,298
Events in quadrant B7,190,039403,894
Events in quadrant C3,139,099420,913
Events in quadrant D3,596,799404,948

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0181
C0181
D0191

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137853
B0258092
C0133742
D0146722

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64141532.385407%
B6414122719.130028%
C64141041.621453%
D64141562.432180%

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 7634 6414 12 12 0.16% 0.19%
B 7633 6413 887 887 11.62% 13.83%
C 7634 6414 0 0 0.00% 0.00%
D 7634 6415 45 45 0.59% 0.70%

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 82579 479.27 836 819 170.6
A 15 174 18827 105.56 836 819 170.6
A 0 226 9115 48.63 836 819 170.6
B 14 167 2011997 13509.18 779 764 148.9
B 5 70 1427421 9582.66 779 764 148.9
B 3 0 546246 3663.93 779 764 148.9
C 13 61 6834 32.22 800 805 187.1
C 2 53 3947 16.79 800 805 187.1
C 14 67 3360 13.66 800 805 187.1
D 1 84 117246 602.58 799 775 193.3
D 2 37 109270 561.31 799 775 193.3
D 5 233 69726 356.73 799 775 193.3

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
Veto Counter