ASTROSAT CZTI

Data Quality Report

Orbit 08882

Creation date: 2024-06-27T15:38:23.317373
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/AS1A03_065T01_9000001238_08882cztM0_level2.evt modeM0/AS1A03_065T01_9000001238_08882cztM0_level2_quad_clean.evt
Size (bytes)497,053,44066,032,640
Size474.0 MB 63.0 MB
Events in quadrant A3,918,800383,449
Events in quadrant B3,140,325396,642
Events in quadrant C3,109,742384,404
Events in quadrant D4,437,711375,659

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156773
B0135422
C0137324
D0172722

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65881832.777778%
B6588951.442016%
C6587981.487779%
D65882734.143898%

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 7538 6588 71 71 0.94% 1.08%
B 7538 6588 1 1 0.01% 0.02%
C 7538 6588 25 25 0.33% 0.38%
D 7538 6588 200 200 2.65% 3.04%

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 15 174 449416 2736.34 794 776 164.0
A 8 5 383242 2332.74 794 776 164.0
A 5 16 24099 142.25 794 776 164.0
B 12 111 17490 107.84 801 782 154.9
B 0 198 14432 88.1 801 782 154.9
B 11 111 14041 85.58 801 782 154.9
C 14 234 99886 548.6 770 776 180.7
C 13 61 5990 28.86 770 776 180.7
C 9 68 5626 26.85 770 776 180.7
D 2 152 540557 2907.34 759 742 185.7
D 8 195 510930 2747.77 759 742 185.7
D 1 52 227559 1221.59 759 742 185.7

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