ASTROSAT CZTI

Data Quality Report

Orbit 03298

Creation date: 2024-06-27T14:27:16.734955
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_228T02_9000000446_03298cztM0_level2.evt modeM0/AS1G05_228T02_9000000446_03298cztM0_level2_quad_clean.evt
Size (bytes)451,512,00068,209,920
Size430.6 MB 65.1 MB
Events in quadrant A3,061,074407,823
Events in quadrant B3,682,289412,066
Events in quadrant C3,573,556402,778
Events in quadrant D2,918,180391,823

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135182
B0151041
C0149911
D0134631

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6466630.974327%
B6466721.113517%
C6466831.283637%
D6466250.386638%

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 7626 6467 25 25 0.33% 0.39%
B 7626 6467 5 5 0.07% 0.08%
C 7626 6467 65 65 0.85% 1.01%
D 7626 6467 18 18 0.24% 0.28%

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 0 50 93422 588.4 762 748 157.5
A 0 118 27152 167.64 762 748 157.5
A 0 226 10654 62.89 762 748 157.5
B 15 204 563513 3726.2 781 764 151.0
B 2 249 55210 360.51 781 764 151.0
B 4 81 17018 107.62 781 764 151.0
C 1 192 244345 1423.76 732 737 171.1
C 14 223 186107 1083.39 732 737 171.1
C 6 80 94469 547.81 732 737 171.1
D 13 223 86412 484.3 729 707 177.0
D 2 206 21773 119.04 729 707 177.0
D 14 34 15908 85.9 729 707 177.0

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