ASTROSAT CZTI

Data Quality Report

Orbit 03715

Creation date: 2024-06-27T14:32:46.207187
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_182T01_9000000484_03715cztM0_level2.evt modeM0/AS1G05_182T01_9000000484_03715cztM0_level2_quad_clean.evt
Size (bytes)595,143,36057,398,400
Size567.6 MB 54.7 MB
Events in quadrant A6,055,130300,578
Events in quadrant B3,340,831341,418
Events in quadrant C5,144,499318,722
Events in quadrant D3,044,562324,691

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0223743
B0139262
C0196392
D0138132

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6473116918.059632%
B6473781.205005%
C647382112.683454%
D6473250.386220%

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 7503 6473 1025 1025 13.66% 15.84%
B 7503 6474 22 22 0.29% 0.34%
C 7503 6474 672 672 8.96% 10.38%
D 7503 6474 22 22 0.29% 0.34%

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 3263745 23203.61 682 666 140.6
A 0 50 120943 855.28 682 666 140.6
A 8 15 19878 136.62 682 666 140.6
B 15 204 172082 1158.28 769 751 147.9
B 0 173 110029 738.77 769 751 147.9
B 4 81 27119 178.26 769 751 147.9
C 2 53 2349173 14009.62 710 711 167.6
C 8 128 6937 37.14 710 711 167.6
C 13 61 6061 31.92 710 711 167.6
D 9 35 86241 483.09 727 706 177.1
D 2 37 71574 400.25 727 706 177.1
D 13 239 68800 384.58 727 706 177.1

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
Veto Counter