ASTROSAT CZTI

Data Quality Report

Orbit 13530

Creation date: 2024-06-27T16:42:09.286713
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/AS1A04_048T01_9000001992_13530cztM0_level2.evt modeM0/AS1A04_048T01_9000001992_13530cztM0_level2_quad_clean.evt
Size (bytes)440,464,32090,158,400
Size420.1 MB 86.0 MB
Events in quadrant A3,108,909574,539
Events in quadrant B3,214,533587,851
Events in quadrant C3,383,479573,716
Events in quadrant D3,193,333543,568

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133473
B0135462
C0140542
D0138372

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6457470.727892%
B6457751.161530%
C6457711.099582%
D6457801.238965%

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 7528 6458 0 0 0.00% 0.00%
B 7528 6458 16 16 0.21% 0.25%
C 7528 6458 1 1 0.01% 0.02%
D 7528 6458 34 34 0.45% 0.53%

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 11 29 17112 100.74 798 780 162.1
A 2 250 11791 67.92 798 780 162.1
A 1 162 10812 61.88 798 780 162.1
B 3 64 61625 404.38 797 777 150.5
B 0 230 21004 134.42 797 777 150.5
B 12 111 17604 111.83 797 777 150.5
C 3 233 294155 1612.36 789 794 181.9
C 7 238 11762 60.28 789 794 181.9
C 13 61 5580 26.3 789 794 181.9
D 2 225 101615 546.84 775 755 184.4
D 2 136 54760 292.8 775 755 184.4
D 13 122 33426 177.13 775 755 184.4

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