ASTROSAT CZTI

Data Quality Report

Orbit 14339

Creation date: 2024-06-27T16:53:44.652858
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/AS1G08_078T01_9000002110_14339cztM0_level2.evt modeM0/AS1G08_078T01_9000002110_14339cztM0_level2_quad_clean.evt
Size (bytes)609,442,56099,328,320
Size581.2 MB 94.7 MB
Events in quadrant A3,950,521632,569
Events in quadrant B4,049,946639,344
Events in quadrant C3,744,149635,976
Events in quadrant D6,222,287596,081

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162853
B0168122
C0154642
D0235542

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72421181.629384%
B72421852.554543%
C7242520.718034%
D72423084.252969%

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 9178 7244 70 70 0.76% 0.97%
B 9178 7243 74 74 0.81% 1.02%
C 9178 7244 1 1 0.01% 0.01%
D 9178 7245 202 202 2.20% 2.79%

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 12 189 369610 2072.74 884 865 177.9
A 8 15 132530 740.1 884 865 177.9
A 4 2 42670 234.99 884 865 177.9
B 0 229 301949 1770.5 883 860 170.1
B 10 16 218280 1278.5 883 860 170.1
B 0 189 28128 160.34 883 860 170.1
C 3 233 355456 1761.29 867 872 201.3
C 14 234 10851 49.57 867 872 201.3
C 13 61 6134 26.14 867 872 201.3
D 1 52 2076800 10317.5 845 824 201.2
D 5 222 350789 1739.31 845 824 201.2
D 12 110 192378 952.01 845 824 201.2

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