ASTROSAT CZTI

Data Quality Report

Orbit 10816

Creation date: 2024-06-27T16:04:48.049051
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_053T01_9000001566_10816cztM0_level2.evt modeM0/AS1G07_053T01_9000001566_10816cztM0_level2_quad_clean.evt
Size (bytes)368,173,44039,121,920
Size351.1 MB 37.3 MB
Events in quadrant A3,779,032215,482
Events in quadrant B2,738,673234,701
Events in quadrant C1,680,380235,292
Events in quadrant D2,681,881218,423

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0802
C0800
D0800

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400429
B01090711
C080711
D01081111

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A396568017.150063%
B39662646.656581%
C397190.226643%
D3969902.267574%

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 3971 3971 526 526 13.25% 13.25%
B 3971 3971 171 171 4.31% 4.31%
C 3971 3971 0 0 0.00% 0.00%
D 3972 3972 73 73 1.84% 1.84%

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 2152425 25650.54 405 396 83.9
A 13 251 19680 229.85 405 396 83.9
A 3 1 15743 182.92 405 396 83.9
B 4 239 850741 10046.42 438 428 84.6
B 0 219 123537 1454.53 438 428 84.6
B 0 85 18796 217.02 438 428 84.6
C 14 234 6256 57.95 428 430 100.5
C 13 61 3344 28.99 428 430 100.5
C 8 222 1787 13.5 428 430 100.5
D 1 52 369234 3547.8 418 406 104.0
D 8 195 279441 2684.07 418 406 104.0
D 10 199 191353 1836.74 418 406 104.0

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