ASTROSAT CZTI

Data Quality Report

Orbit 17211

Creation date: 2024-06-27T17:33:38.122370
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_185T04_9000002548_17211cztM0_level2.evt modeM0/AS1A05_185T04_9000002548_17211cztM0_level2_quad_clean.evt
Size (bytes)444,816,00089,153,280
Size424.2 MB 85.0 MB
Events in quadrant A2,972,902583,005
Events in quadrant B3,145,371591,700
Events in quadrant C3,520,339556,334
Events in quadrant D3,412,745537,490

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128182
B0133002
C0143002
D0144332

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6179140.226574%
B6179220.356045%
C6179560.906296%
D61791352.184820%

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 7484 6180 0 0 0.00% 0.00%
B 7484 6180 2 2 0.03% 0.03%
C 7484 6180 0 0 0.00% 0.00%
D 7484 6180 87 87 1.16% 1.41%

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 34347 218.81 764 749 153.5
A 0 226 6893 40.01 764 749 153.5
A 12 194 5745 32.54 764 749 153.5
B 0 197 43040 292.55 768 748 144.6
B 6 36 37703 255.64 768 748 144.6
B 0 189 20366 135.71 768 748 144.6
C 3 233 525165 3060.1 737 744 171.4
C 14 238 114863 665.91 737 744 171.4
C 13 61 5169 25.82 737 744 171.4
D 5 222 551071 3090.45 737 717 178.1
D 12 110 28195 154.3 737 717 178.1
D 2 234 27826 152.23 737 717 178.1

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