ASTROSAT CZTI

Data Quality Report

Orbit 03008

Creation date: 2024-06-27T14:23:22.866798
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_238T02_9000000420_03008cztM0_level2.evt modeM0/AS1G05_238T02_9000000420_03008cztM0_level2_quad_clean.evt
Size (bytes)471,219,84046,212,480
Size449.4 MB 44.1 MB
Events in quadrant A5,050,546252,953
Events in quadrant B2,993,474264,022
Events in quadrant C3,038,035258,856
Events in quadrant D2,829,511251,816

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0185373
B0121742
C0126512
D0121072

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A530459111.142534%
B5304200.377074%
C53041883.544495%
D5304771.451735%

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 9615 5306 484 484 5.03% 9.12%
B 9615 5306 8 8 0.08% 0.15%
C 9615 5306 172 172 1.79% 3.24%
D 9615 5306 68 68 0.71% 1.28%

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 9 2196920 18490.67 583 571 118.8
A 14 249 322293 2708.52 583 571 118.8
A 14 63 100423 840.64 583 571 118.8
B 8 3 466181 3949.43 614 600 117.9
B 0 219 51344 430.45 614 600 117.9
B 3 27 40613 339.42 614 600 117.9
C 0 219 520754 3864.9 576 579 134.6
C 1 192 173364 1283.79 576 579 134.6
C 6 80 55179 405.68 576 579 134.6
D 9 35 206558 1446.81 582 566 142.4
D 12 1 97521 680.98 582 566 142.4
D 13 114 96928 676.81 582 566 142.4

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