ASTROSAT CZTI

Data Quality Report

Orbit 10127

Creation date: 2024-06-27T15:55:19.070246
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/AS1G07_013T01_9000001456_10127cztM0_level2.evt modeM0/AS1G07_013T01_9000001456_10127cztM0_level2_quad_clean.evt
Size (bytes)2,200,121,280580,115,520
Size2.0 GB 553.2 MB
Events in quadrant A14,535,2613,844,284
Events in quadrant B15,527,7063,885,797
Events in quadrant C14,180,8093,915,023
Events in quadrant D20,191,5373,694,432

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06600
B06600
C06600
D06600

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A066705130
B06871290
C065875127
D082235103

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A324942150.661661%
B325113220.990434%
C324941290.396996%
D325099692.980713%

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 44979 32555 29 29 0.06% 0.09%
B 44979 32556 40 40 0.09% 0.12%
C 44979 32554 5 5 0.01% 0.02%
D 44979 32556 724 724 1.61% 2.22%

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 234553 312.77 3673 3589 738.4
A 8 5 75847 97.85 3673 3589 738.4
A 8 15 49571 62.27 3673 3589 738.4
B 0 214 415089 599.26 3689 3603 686.7
B 0 189 166718 237.55 3689 3603 686.7
B 4 81 153899 218.88 3689 3603 686.7
C 14 67 44619 49.59 3612 3623 826.7
C 8 222 41607 45.94 3612 3623 826.7
C 13 61 27271 28.6 3612 3623 826.7
D 1 52 2778085 3271.17 3557 3452 848.2
D 8 195 1014467 1191.94 3557 3452 848.2
D 4 95 492071 576.06 3557 3452 848.2

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