ASTROSAT CZTI

Data Quality Report

Orbit 22416

Creation date: 2024-06-27T18:40:41.039765
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/AS1T03_156T01_9000003312_22416cztM0_level2.evt modeM0/AS1T03_156T01_9000003312_22416cztM0_level2_quad_clean.evt
Size (bytes)284,400,00063,564,480
Size271.2 MB 60.6 MB
Events in quadrant A1,943,872413,092
Events in quadrant B2,038,326417,697
Events in quadrant C1,967,004399,361
Events in quadrant D2,365,879387,407

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0880
B0880
C0880
D0880

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A087370
B088840
C087480
D099920

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A436010.022936%
B436040.091743%
C4360110.252294%
D4360501.146789%

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 4360 4360 0 0 0.00% 0.00%
B 4360 4360 2 2 0.05% 0.05%
C 4360 4360 0 0 0.00% 0.00%
D 4360 4360 44 44 1.01% 1.01%

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 13 254 6063 53.91 503 493 103.3
A 3 137 4384 37.66 503 493 103.3
A 0 226 4285 36.7 503 493 103.3
B 0 228 33619 340.41 501 487 97.3
B 0 190 16220 161.65 501 487 97.3
B 12 111 11407 112.2 501 487 97.3
C 14 238 76556 664.3 484 487 114.5
C 13 61 3365 25.13 484 487 114.5
C 10 22 1628 9.96 484 487 114.5
D 1 52 425792 3573.73 489 475 119.0
D 2 234 22166 182.26 489 475 119.0
D 13 172 18555 151.92 489 475 119.0

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