ASTROSAT CZTI

Data Quality Report

Orbit 14348

Creation date: 2024-06-27T16:54:03.913756
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/AS1G08_028T01_9000002112_14348cztM0_level2.evt modeM0/AS1G08_028T01_9000002112_14348cztM0_level2_quad_clean.evt
Size (bytes)371,687,04054,480,960
Size354.5 MB 52.0 MB
Events in quadrant A2,188,035345,992
Events in quadrant B2,138,112346,347
Events in quadrant C2,231,920338,953
Events in quadrant D4,415,177324,917

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A092261
B089850
C089430
D0160180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4164912.185399%
B41641142.737752%
C4164912.185399%
D416474517.891451%

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 4400 4165 0 0 0.00% 0.00%
B 4400 4165 2 2 0.05% 0.05%
C 4400 4165 4 4 0.09% 0.10%
D 4400 4165 553 553 12.57% 13.28%

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 12 189 146125 1342.02 525 513 108.5
A 8 15 20639 185.49 525 513 108.5
A 0 226 4573 37.42 525 513 108.5
B 0 229 49204 469.79 521 508 103.7
B 0 189 24874 235.07 521 508 103.7
B 0 214 15849 148.0 521 508 103.7
C 3 233 232618 1921.72 508 511 120.8
C 14 234 15383 123.13 508 511 120.8
C 6 96 4754 35.13 508 511 120.8
D 13 122 1739345 14975.34 482 471 116.1
D 12 110 498356 4287.83 482 471 116.1
D 2 120 147362 1265.04 482 471 116.1

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