ASTROSAT CZTI

Data Quality Report

Orbit 34430

Creation date: 2022-02-09T12:20:09.716494
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_082T10_9000004916_34430cztM0_level2.evt modeM0/AS1A05_082T10_9000004916_34430cztM0_level2_quad_clean.evt
Size (bytes)972,950,400134,625,600
Size927.9 MB 128.4 MB
Events in quadrant A5,692,830826,831
Events in quadrant B7,649,141828,857
Events in quadrant C6,212,979832,130
Events in quadrant D9,125,719784,364

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0410
B0410
C0410
D0410

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02380
B02380
C02380
D02380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0242234
B0302683
C0255913
D0353503

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A11633370.318061%
B116335604.813892%
C11633400.343849%
D116334193.601822%

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 15723 11636 21 21 0.13% 0.18%
B 15723 11636 415 415 2.64% 3.57%
C 15723 11636 25 25 0.16% 0.21%
D 15723 11636 326 326 2.07% 2.80%

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 7 16 260755 931.85 1384 1355 278.4
A 10 83 58538 205.42 1384 1355 278.4
A 13 254 21048 70.74 1384 1355 278.4
B 5 172 1830890 7020.03 1349 1313 260.6
B 0 190 220317 840.31 1349 1313 260.6
B 15 222 110020 417.11 1349 1313 260.6
C 15 214 480694 1543.99 1340 1350 310.5
C 14 67 292383 937.43 1340 1350 310.5
C 0 10 138083 440.42 1340 1350 310.5
D 8 195 1870857 5715.19 1330 1292 327.1
D 2 250 519898 1585.36 1330 1292 327.1
D 2 249 357249 1088.15 1330 1292 327.1

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