ASTROSAT CZTI

Data Quality Report

Orbit 17078

Creation date: 2024-06-27T17:31:45.161972
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/AS1A05_004T04_9000002534_17078cztM0_level2.evt modeM0/AS1A05_004T04_9000002534_17078cztM0_level2_quad_clean.evt
Size (bytes)457,482,24096,586,560
Size436.3 MB 92.1 MB
Events in quadrant A2,998,225633,428
Events in quadrant B3,301,391651,056
Events in quadrant C3,727,890615,006
Events in quadrant D3,403,408589,867

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129732
B0138102
C0151752
D0144322

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6239170.272480%
B6239360.577016%
C6238620.993908%
D62381151.843540%

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 7544 6240 0 0 0.00% 0.00%
B 7544 6240 7 7 0.09% 0.11%
C 7543 6239 0 0 0.00% 0.00%
D 7543 6239 83 83 1.10% 1.33%

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 4 2 12337 74.01 777 762 156.4
A 0 226 6770 38.41 777 762 156.4
A 12 194 5753 31.91 777 762 156.4
B 0 189 130686 893.69 784 767 145.4
B 0 197 39281 264.93 784 767 145.4
B 0 219 22763 151.31 784 767 145.4
C 3 233 647680 3673.94 756 762 176.1
C 14 238 117427 662.56 756 762 176.1
C 7 247 16014 86.62 756 762 176.1
D 5 222 331762 1840.9 750 729 179.8
D 10 70 170006 941.36 750 729 179.8
D 15 0 49684 272.24 750 729 179.8

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