ASTROSAT CZTI

Data Quality Report

Orbit 23454

Creation date: 2024-06-27T18:54:33.113588
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/AS1A07_100T02_9000003470_23454cztM0_level2.evt modeM0/AS1A07_100T02_9000003470_23454cztM0_level2_quad_clean.evt
Size (bytes)814,656,96094,849,920
Size776.9 MB 90.5 MB
Events in quadrant A3,765,526656,728
Events in quadrant B3,975,885660,949
Events in quadrant C3,838,950634,546
Events in quadrant D12,560,927373,684

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163672
B0168032
C0164472
D0427242

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78431882.397042%
B78442423.085161%
C78441922.447731%
D7844351244.773075%

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 8333 7844 1 1 0.01% 0.01%
B 8334 7844 1 1 0.01% 0.01%
C 8334 7845 0 0 0.00% 0.00%
D 8334 7844 3216 3216 38.59% 41.00%

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 15 174 16604 79.19 972 945 197.7
A 13 254 13140 61.68 972 945 197.7
A 0 226 8494 38.18 972 945 197.7
B 0 190 98973 537.65 963 937 182.3
B 0 229 35259 188.23 963 937 182.3
B 0 219 26181 138.44 963 937 182.3
C 14 238 145038 664.68 928 932 216.8
C 10 9 23452 103.87 928 932 216.8
C 7 247 22335 98.72 928 932 216.8
D 1 52 8385094 49304.08 693 672 170.1
D 7 238 861740 5063.46 693 672 170.1
D 12 233 231518 1357.48 693 672 170.1

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