ASTROSAT CZTI

Data Quality Report

Orbit 34413

Creation date: 2022-02-08T09:17:03.192518
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_108T02_9000004914_34413cztM0_level2.evt modeM0/AS1A05_108T02_9000004914_34413cztM0_level2_quad_clean.evt
Size (bytes)492,955,20077,385,600
Size470.1 MB 73.8 MB
Events in quadrant A2,921,333480,826
Events in quadrant B3,745,142484,379
Events in quadrant C3,296,979482,945
Events in quadrant D4,536,118453,346

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128723
B0152472
C0134842
D0177962

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A632680.126462%
B63262724.299715%
C6326180.284540%
D63261612.545052%

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 9011 6328 1 1 0.01% 0.02%
B 9011 6328 214 214 2.37% 3.38%
C 9011 6328 13 13 0.14% 0.21%
D 9011 6328 113 113 1.25% 1.79%

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 10 83 35570 235.75 737 722 147.8
A 9 143 23947 157.12 737 722 147.8
A 13 254 11808 75.0 737 722 147.8
B 5 172 807466 5853.68 716 694 137.8
B 0 190 51877 371.37 716 694 137.8
B 5 255 37708 268.56 716 694 137.8
C 15 214 265787 1567.99 724 729 169.0
C 14 67 97806 574.27 724 729 169.0
C 0 10 90532 531.24 724 729 169.0
D 8 195 688923 3917.2 716 696 175.7
D 2 249 293672 1667.54 716 696 175.7
D 1 47 193174 1095.53 716 696 175.7

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