ASTROSAT CZTI

Data Quality Report

Orbit 07393

Creation date: 2024-06-27T15:19:14.567597
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/AS1G06_117T01_9000001012_07393cztM0_level2.evt modeM0/AS1G06_117T01_9000001012_07393cztM0_level2_quad_clean.evt
Size (bytes)989,605,440152,807,040
Size943.8 MB 145.7 MB
Events in quadrant A7,181,716921,383
Events in quadrant B6,842,328935,386
Events in quadrant C6,656,675923,728
Events in quadrant D8,340,252878,555

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0342
B0353
C0351
D0342

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0382397334
B0364616829
C0362106806
D0428308499

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A035359
B035668
C035771
D034957

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A140201581.126961%
B140311421.012045%
C140241751.247861%
D139573462.479043%

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 21791 14459 31 31 0.14% 0.21%
B 21789 14440 14 14 0.06% 0.10%
C 21789 14427 57 57 0.26% 0.40%
D 21787 14358 186 186 0.85% 1.30%

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 0 23 356671 1036.59 1671 1635 342.5
A 0 128 203128 588.29 1671 1635 342.5
A 15 234 151009 436.12 1671 1635 342.5
B 0 214 210738 647.82 1689 1650 322.8
B 4 81 81016 245.9 1689 1650 322.8
B 12 111 32874 96.74 1689 1650 322.8
C 9 68 137257 358.31 1632 1641 378.5
C 1 16 132443 345.59 1632 1641 378.5
C 10 22 24283 59.82 1632 1641 378.5
D 2 216 1141449 2879.34 1612 1560 395.9
D 14 34 243382 610.84 1612 1560 395.9
D 5 233 231528 580.89 1612 1560 395.9

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