ASTROSAT CZTI

Data Quality Report

Orbit 11061

Creation date: 2024-06-27T16:07:42.388297
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/AS1C03_006T01_9000001608_11061cztM0_level2.evt modeM0/AS1C03_006T01_9000001608_11061cztM0_level2_quad_clean.evt
Size (bytes)526,089,60085,518,720
Size501.7 MB 81.6 MB
Events in quadrant A3,502,195531,799
Events in quadrant B4,733,825526,938
Events in quadrant C3,335,381532,875
Events in quadrant D3,881,144505,434

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150643
B0187042
C0147382
D0163312

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70711492.107198%
B70714526.392307%
C7071961.357658%
D70711612.276906%

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 7631 7072 6 6 0.08% 0.08%
B 7631 7071 185 185 2.42% 2.62%
C 7631 7072 0 0 0.00% 0.00%
D 7631 7072 43 43 0.56% 0.61%

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 14 238 38246 207.49 886 869 180.1
A 15 174 21819 116.3 886 869 180.1
A 14 254 19598 103.97 886 869 180.1
B 4 239 1202731 7243.39 865 843 165.9
B 15 204 37861 223.1 865 843 165.9
B 3 189 27018 157.75 865 843 165.9
C 8 222 28654 141.25 846 851 196.8
C 13 61 6286 27.61 846 851 196.8
C 14 234 5625 24.25 846 851 196.8
D 1 52 205822 1001.93 849 827 204.6
D 13 152 150191 730.03 849 827 204.6
D 2 136 77757 376.0 849 827 204.6

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter