ASTROSAT CZTI

Data Quality Report

Orbit 08321

Creation date: 2024-06-27T15:30:56.831536
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/AS1A03_093T01_9000001156_08321cztM0_level2.evt modeM0/AS1A03_093T01_9000001156_08321cztM0_level2_quad_clean.evt
Size (bytes)444,565,44062,867,520
Size424.0 MB 60.0 MB
Events in quadrant A3,212,789365,180
Events in quadrant B3,390,367373,460
Events in quadrant C3,159,206366,585
Events in quadrant D3,268,690353,816

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133573
B0138272
C0133432
D0138342

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6370490.769231%
B6370661.036107%
C6370550.863422%
D63701141.789639%

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 7640 6371 0 0 0.00% 0.00%
B 7640 6371 2 2 0.03% 0.03%
C 7640 6371 0 0 0.00% 0.00%
D 7640 6371 47 47 0.62% 0.74%

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 0 254 11565 64.81 829 813 165.9
A 15 239 8632 47.13 829 813 165.9
A 0 226 7752 41.83 829 813 165.9
B 0 214 97335 612.75 838 821 157.5
B 4 81 32878 203.52 838 821 157.5
B 12 111 16589 100.11 838 821 157.5
C 13 61 6217 28.97 809 816 186.5
C 9 54 4594 20.26 809 816 186.5
C 3 202 2051 6.62 809 816 186.5
D 1 52 130604 645.67 799 781 201.1
D 12 221 30890 149.75 799 781 201.1
D 2 14 27608 133.42 799 781 201.1

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter