ASTROSAT CZTI

Data Quality Report

Orbit 32211

Creation date: 2024-06-27T20:37:38.570598
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/AS1A10_057T01_9000004692_32211cztM0_level2.evt modeM0/AS1A10_057T01_9000004692_32211cztM0_level2_quad_clean.evt
Size (bytes)674,498,88098,801,280
Size643.3 MB 94.2 MB
Events in quadrant A3,467,812641,918
Events in quadrant B5,445,137639,862
Events in quadrant C3,575,853633,538
Events in quadrant D7,457,951581,247

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148802
B0217621
C0151291
D0271071

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71111191.673464%
B71112143.009422%
C71112373.332865%
D711177810.940796%

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 7376 7112 0 0 0.00% 0.00%
B 7376 7112 8 8 0.11% 0.11%
C 7376 7112 2 2 0.03% 0.03%
D 7376 7112 554 554 7.51% 7.79%

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 12 189 72381 410.75 862 843 174.2
A 0 230 42978 241.93 862 843 174.2
A 13 254 13491 72.62 862 843 174.2
B 6 159 1916103 11759.06 849 825 162.9
B 5 172 43239 260.41 849 825 162.9
B 12 18 42235 254.24 849 825 162.9
C 14 238 175567 899.4 821 826 194.3
C 14 254 59097 299.92 821 826 194.3
C 3 233 41062 207.09 821 826 194.3
D 5 172 1736617 9097.21 800 778 190.8
D 2 250 1091540 5716.48 800 778 190.8
D 12 233 829263 4341.94 800 778 190.8

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