ASTROSAT CZTI

Data Quality Report

Orbit 48162

Creation date: 2024-08-24T09:10:23.214955
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/AS1C09_004T05_9000006408_48162cztM0_level2.fits modeM0/AS1C09_004T05_9000006408_48162cztM0_level2_quad_clean.evt
Size (bytes)540,889,920110,370,240
Size515.8 MB 105.3 MB
Events in quadrant A9,093,588944,631
Events in quadrant B1,526,228119
Events in quadrant C4,376,021923,952
Events in quadrant D4,325,350855,557

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01780
B01780
C01780
D01780

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0327030
B094230
C0195851
D0194660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A88931721.934105%
B8894889399.988756%
C88931161.304397%
D8893850.955808%

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 8893 8893 20 20 0.22% 0.22%
B 8893 8862 0 0 0.00% 0.00%
C 8893 8893 65 65 0.73% 0.73%
D 8893 8893 76 76 0.85% 0.85%

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 10 83 5137175 25389.4 969 945 202.3
A 13 248 118105 579.14 969 945 202.3
A 0 31 53070 257.66 969 945 202.3
B 2 177 1227009 80865.31 65 63 15.2
B 4 21 23637 1553.71 65 63 15.2
B 5 32 6144 400.79 65 63 15.2
C 12 2 548632 2412.88 965 969 227.0
C 14 254 41638 179.18 965 969 227.0
C 12 250 10558 42.25 965 969 227.0
D 5 222 149731 625.29 959 928 238.0
D 5 32 58338 241.24 959 928 238.0
D 13 29 56832 234.92 959 928 238.0

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