ASTROSAT CZTI

Data Quality Report

Orbit 04183

Creation date: 2024-06-27T14:38:29.539220
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/AS1G05_240T01_9000000536_04183cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04183cztM0_level2_quad_clean.evt
Size (bytes)506,116,80055,797,120
Size482.7 MB 53.2 MB
Events in quadrant A3,936,438318,205
Events in quadrant B3,418,781325,402
Events in quadrant C3,029,137312,632
Events in quadrant D4,521,837298,822

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158683
B0138922
C0129002
D0176322

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62182764.438726%
B62181522.444516%
C6218691.109682%
D62192013.232031%

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 7518 6219 100 100 1.33% 1.61%
B 7518 6219 48 48 0.64% 0.77%
C 7518 6219 0 0 0.00% 0.00%
D 7519 6220 107 107 1.42% 1.72%

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 0 118 420055 2636.34 793 779 159.0
A 3 1 350147 2196.77 793 779 159.0
A 0 226 46845 289.66 793 779 159.0
B 10 16 170799 1096.77 810 793 155.0
B 4 48 35019 220.8 810 793 155.0
B 7 252 25194 157.42 810 793 155.0
C 10 65 16219 86.39 769 773 178.8
C 13 61 6505 32.06 769 773 178.8
C 9 144 4560 21.18 769 773 178.8
D 12 233 992619 5399.77 763 743 183.7
D 13 46 437024 2375.11 763 743 183.7
D 13 239 81148 437.72 763 743 183.7

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