ASTROSAT CZTI

Data Quality Report

Orbit 17243

Creation date: 2024-06-27T17:34:02.135686
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/AS1T03_063T01_9000002550_17243cztM0_level2.evt modeM0/AS1T03_063T01_9000002550_17243cztM0_level2_quad_clean.evt
Size (bytes)538,421,760100,696,320
Size513.5 MB 96.0 MB
Events in quadrant A3,758,163635,622
Events in quadrant B4,148,506644,178
Events in quadrant C3,814,337618,718
Events in quadrant D4,052,324605,298

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0164212
B0176952
C0163652
D0175992

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7844500.637430%
B78451331.695347%
C78451101.402167%
D78441401.784804%

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 8884 7846 0 0 0.00% 0.00%
B 8885 7847 17 17 0.19% 0.22%
C 8885 7847 0 0 0.00% 0.00%
D 8884 7846 89 89 1.00% 1.13%

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 23 52789 263.08 960 939 197.1
A 0 226 11422 53.19 960 939 197.1
A 3 254 7846 35.05 960 939 197.1
B 7 220 165478 875.33 965 940 188.0
B 15 35 65483 343.36 965 940 188.0
B 3 209 48385 252.4 965 940 188.0
C 14 238 140324 638.24 924 931 218.4
C 3 233 40295 180.24 924 931 218.4
C 1 16 29553 131.05 924 931 218.4
D 15 0 177127 772.41 925 898 228.2
D 10 70 148134 645.34 925 898 228.2
D 13 189 122085 531.16 925 898 228.2

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