ASTROSAT CZTI

Data Quality Report

Orbit 08413

Creation date: 2024-06-27T15:32:25.324519
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/AS1A02_158T01_9000001184_08413cztM0_level2.evt modeM0/AS1A02_158T01_9000001184_08413cztM0_level2_quad_clean.evt
Size (bytes)240,292,80031,495,680
Size229.2 MB 30.0 MB
Events in quadrant A1,660,932181,143
Events in quadrant B1,751,652183,736
Events in quadrant C1,658,313182,711
Events in quadrant D1,983,352174,401

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0680

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070102
B072911
C070401
D080351

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A32491544.739920%
B32491745.355494%
C3249942.893198%
D32491504.616805%

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 3494 3250 0 0 0.00% 0.00%
B 3494 3250 4 4 0.11% 0.12%
C 3494 3250 0 0 0.00% 0.00%
D 3494 3250 14 14 0.40% 0.43%

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 0 226 4097 40.58 431 420 90.6
A 12 194 4040 39.95 431 420 90.6
A 13 251 3528 34.3 431 420 90.6
B 0 214 51344 590.17 427 415 86.3
B 10 252 13232 148.52 427 415 86.3
B 0 231 9133 101.02 427 415 86.3
C 1 16 14536 139.14 419 420 101.4
C 8 128 4556 40.77 419 420 101.4
C 13 61 3223 27.63 419 420 101.4
D 12 221 210712 2012.82 420 408 104.5
D 4 95 63091 599.94 420 408 104.5
D 12 233 49834 473.06 420 408 104.5

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