ASTROSAT CZTI

Data Quality Report

Orbit 43401

Creation date: 2024-06-27T22:51:33.274110
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/AS1A12_018T01_9000005874_43401cztM0_level2.fits modeM0/AS1A12_018T01_9000005874_43401cztM0_level2_quad_clean.evt
Size (bytes)287,225,28086,774,400
Size273.9 MB 82.8 MB
Events in quadrant A2,969,727573,414
Events in quadrant B2,257,149607,586
Events in quadrant C2,485,191576,624
Events in quadrant D2,533,442522,769

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118882
B0100812
C0105843
D0110842

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0310
C0310
D0310

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A49561182.380952%
B495650.100888%
C4955120.242180%
D4955551.109990%

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 7019 4957 91 91 1.30% 1.84%
B 7019 4957 2 2 0.03% 0.04%
C 7018 4956 7 7 0.10% 0.14%
D 7018 4956 53 53 0.76% 1.07%

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 531717 4844.7 537 526 109.6
A 15 237 222617 2025.57 537 526 109.6
A 13 248 119657 1086.53 537 526 109.6
B 0 189 51559 492.04 548 533 103.7
B 0 245 30967 293.47 548 533 103.7
B 5 255 15033 139.82 548 533 103.7
C 15 214 205928 1637.82 537 541 125.4
C 3 233 85786 679.77 537 541 125.4
C 15 159 64885 513.1 537 541 125.4
D 1 47 178770 1379.25 528 512 129.2
D 12 6 122874 946.76 528 512 129.2
D 1 52 110315 849.59 528 512 129.2

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