ASTROSAT CZTI

Data Quality Report

Orbit 03702

Creation date: 2024-06-27T14:32:36.022057
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_009T01_9000000482_03702cztM0_level2.evt modeM0/AS1G05_009T01_9000000482_03702cztM0_level2_quad_clean.evt
Size (bytes)644,368,32063,933,120
Size614.5 MB 61.0 MB
Events in quadrant A7,752,362306,285
Events in quadrant B3,711,373392,593
Events in quadrant C3,218,638386,815
Events in quadrant D4,362,826366,784

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0277233
B0154662
C0142612
D0178912

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6922197128.474429%
B6922801.155735%
C6922330.476741%
D69222663.842820%

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 8956 6922 1797 1797 20.06% 25.96%
B 8957 6924 5 5 0.06% 0.07%
C 8957 6924 1 1 0.01% 0.01%
D 8957 6924 225 225 2.51% 3.25%

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 5081591 37205.8 670 656 136.6
A 13 164 62203 450.69 670 656 136.6
A 0 50 10898 75.0 670 656 136.6
B 15 204 304886 1885.47 837 816 161.3
B 5 70 63773 390.38 837 816 161.3
B 14 167 54061 330.16 837 816 161.3
C 2 53 76104 402.79 801 806 186.9
C 13 61 6821 32.18 801 806 186.9
C 9 247 6351 29.66 801 806 186.9
D 9 35 812100 4279.14 786 764 189.6
D 1 84 156860 823.28 786 764 189.6
D 13 223 111689 585.04 786 764 189.6

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