ASTROSAT CZTI

Data Quality Report

Orbit 03039

Creation date: 2024-06-27T14:23:49.129378
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_237T02_9000000422_03039cztM0_level2.evt modeM0/AS1G05_237T02_9000000422_03039cztM0_level2_quad_clean.evt
Size (bytes)338,529,60081,760,320
Size322.8 MB 78.0 MB
Events in quadrant A2,207,489538,362
Events in quadrant B2,755,920539,280
Events in quadrant C2,391,445532,763
Events in quadrant D2,563,829522,004

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A098422
B0112631
C0105221
D0110131

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A488940.081816%
B4889190.388628%
C4889240.490898%
D4889270.552260%

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 7045 4890 0 0 0.00% 0.00%
B 7045 4890 8 8 0.11% 0.16%
C 7045 4890 17 17 0.24% 0.35%
D 7045 4890 26 26 0.37% 0.53%

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 13 251 16949 144.72 558 547 113.3
A 0 50 15547 132.35 558 547 113.3
A 12 247 12453 105.05 558 547 113.3
B 15 204 318476 3064.51 558 547 103.7
B 0 219 75992 727.21 558 547 103.7
B 6 36 69405 663.72 558 547 103.7
C 1 192 214582 1751.29 533 536 122.2
C 6 80 53645 434.53 533 536 122.2
C 1 16 15205 120.02 533 536 122.2
D 2 152 133946 1051.93 537 524 126.8
D 12 217 132054 1037.02 537 524 126.8
D 7 80 60929 476.25 537 524 126.8

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