ASTROSAT CZTI

Data Quality Report

Orbit 03005

Creation date: 2024-06-27T14:23:20.919196
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_03005cztM0_level2.evt modeM0/AS1G05_238T02_9000000420_03005cztM0_level2_quad_clean.evt
Size (bytes)452,692,80041,492,160
Size431.7 MB 39.6 MB
Events in quadrant A5,023,089217,438
Events in quadrant B3,280,493227,754
Events in quadrant C2,221,275227,916
Events in quadrant D2,835,825222,118

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0185003
B0131852
C0104552
D0123282

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0410
B0410
C0410
D0410

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A513859311.541456%
B5138601.167770%
C513890.175165%
D51381913.717400%

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 7293 5139 466 466 6.39% 9.07%
B 7293 5139 38 38 0.52% 0.74%
C 7293 5139 2 2 0.03% 0.04%
D 7293 5139 166 166 2.28% 3.23%

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 1962991 17823.5 532 522 110.1
A 14 249 834317 7572.68 532 522 110.1
A 0 50 114616 1036.22 532 522 110.1
B 8 3 867038 7958.38 564 553 108.9
B 10 249 89321 815.3 564 553 108.9
B 2 249 48357 439.06 564 553 108.9
C 0 219 59772 467.2 536 538 126.8
C 6 80 47446 369.98 536 538 126.8
C 1 192 7504 54.94 536 538 126.8
D 7 80 357123 2769.73 523 506 128.8
D 12 1 225918 1750.7 523 506 128.8
D 13 223 50632 389.31 523 506 128.8

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