ASTROSAT CZTI

Data Quality Report

Orbit 21453

Creation date: 2024-06-27T18:27:57.718764
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/AS1A05_117T01_9000003166_21453cztM0_level2.evt modeM0/AS1A05_117T01_9000003166_21453cztM0_level2_quad_clean.evt
Size (bytes)302,368,32060,272,640
Size288.4 MB 57.5 MB
Events in quadrant A2,018,907394,475
Events in quadrant B2,036,785396,105
Events in quadrant C2,366,914378,086
Events in quadrant D2,464,166376,659

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0820
C0820
D0820

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A084142
B083972
C094352
D098742

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A39601072.702020%
B39601062.676768%
C39601583.989899%
D39601062.676768%

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 5055 3960 0 0 0.00% 0.00%
B 5055 3960 0 0 0.00% 0.00%
C 5055 3960 49 49 0.97% 1.24%
D 5055 3960 27 27 0.53% 0.68%

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 11 47 31438 296.28 515 506 104.4
A 13 254 6033 52.94 515 506 104.4
A 0 226 4434 37.62 515 506 104.4
B 3 64 22950 228.16 509 497 98.4
B 0 230 17457 172.34 509 497 98.4
B 12 111 11809 114.95 509 497 98.4
C 3 233 386415 3362.12 488 491 114.8
C 14 238 77645 672.16 488 491 114.8
C 13 61 3360 24.99 488 491 114.8
D 14 34 113053 930.66 501 489 121.0
D 1 52 107889 887.97 501 489 121.0
D 12 235 80823 664.19 501 489 121.0

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