ASTROSAT CZTI

Data Quality Report

Orbit 38190

Creation date: 2024-06-27T21:49:33.302273
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/AS1A07_145T01_9000005370_38190cztM0_level2.fits modeM0/AS1A07_145T01_9000005370_38190cztM0_level2_quad_clean.evt
Size (bytes)322,410,24092,790,720
Size307.5 MB 88.5 MB
Events in quadrant A2,803,997621,015
Events in quadrant B2,529,957637,753
Events in quadrant C2,642,457611,978
Events in quadrant D3,539,323562,585

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115123
B0111222
C0111132
D0141942

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A537680.148810%
B5376320.595238%
C5376110.204613%
D5376330.613839%

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 7109 5377 5 5 0.07% 0.09%
B 7109 5377 15 15 0.21% 0.28%
C 7109 5377 8 8 0.11% 0.15%
D 7109 5377 36 36 0.51% 0.67%

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 362521 2914.76 609 597 124.2
A 12 16 36204 286.76 609 597 124.2
A 12 189 24437 192.0 609 597 124.2
B 4 171 58557 495.26 607 590 117.0
B 5 172 39410 331.67 607 590 117.0
B 12 18 25154 209.87 607 590 117.0
C 15 214 222029 1611.8 593 597 137.4
C 14 254 77689 561.15 593 597 137.4
C 0 10 16924 118.84 593 597 137.4
D 10 203 777039 5396.17 592 576 143.9
D 2 16 228782 1585.96 592 576 143.9
D 13 249 90807 627.07 592 576 143.9

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