ASTROSAT CZTI

Data Quality Report

Orbit 09396

Creation date: 2024-06-27T15:45:30.540738
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/AS1G07_069T01_9000001332_09396cztM0_level2.evt modeM0/AS1G07_069T01_9000001332_09396cztM0_level2_quad_clean.evt
Size (bytes)444,643,20093,965,760
Size424.0 MB 89.6 MB
Events in quadrant A3,652,428590,607
Events in quadrant B3,164,100600,008
Events in quadrant C2,981,775605,720
Events in quadrant D3,212,823582,820

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01532712
B01416014
C01366713
D01450118

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6693530.791872%
B6690370.553064%
C6691120.179345%
D6689480.717596%

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 7576 6697 14 14 0.18% 0.21%
B 7576 6697 3 3 0.04% 0.04%
C 7576 6697 0 0 0.00% 0.00%
D 7576 6697 19 19 0.25% 0.28%

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 8 5 521244 3322.49 764 747 156.7
A 5 112 57412 361.71 764 747 156.7
A 4 2 45511 285.74 764 747 156.7
B 5 174 85098 575.13 773 755 146.6
B 0 214 40316 269.77 773 755 146.6
B 8 234 17194 112.1 773 755 146.6
C 13 61 5723 28.2 762 765 175.8
C 10 22 5368 26.18 762 765 175.8
C 12 4 3215 13.93 762 765 175.8
D 1 52 89377 482.09 748 732 183.9
D 12 233 75166 404.81 748 732 183.9
D 13 104 62680 336.9 748 732 183.9

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