ASTROSAT CZTI

Data Quality Report

Orbit 45329

Creation date: 2024-06-27T23:12:20.368079
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_166T01_9000006070_45329cztM0_level2.fits modeM0/AS1A05_166T01_9000006070_45329cztM0_level2_quad_clean.evt
Size (bytes)466,205,760113,152,320
Size444.6 MB 107.9 MB
Events in quadrant A5,742,552753,634
Events in quadrant B3,781,457793,451
Events in quadrant C3,220,361762,955
Events in quadrant D4,021,443674,541

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0216232
B0154052
C0139142
D0162412

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63342293.615409%
B63341682.652352%
C6334891.405115%
D63342153.394380%

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 7609 6334 64 64 0.84% 1.01%
B 7609 6334 46 46 0.60% 0.73%
C 7609 6335 60 60 0.79% 0.95%
D 7609 6335 169 169 2.22% 2.67%

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 2770629 18408.38 733 720 150.5
A 9 191 46585 304.81 733 720 150.5
A 0 243 22190 142.68 733 720 150.5
B 4 171 192547 1350.43 743 723 142.0
B 3 112 183240 1284.91 743 723 142.0
B 0 186 129067 903.53 743 723 142.0
C 14 254 268445 1577.27 732 738 169.7
C 12 2 68425 398.8 732 738 169.7
C 3 233 18227 103.04 732 738 169.7
D 13 29 286787 1597.06 717 695 179.1
D 1 52 216745 1206.06 717 695 179.1
D 13 249 167351 930.33 717 695 179.1

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