ASTROSAT CZTI

Data Quality Report

Orbit 45678

Creation date: 2024-06-27T23:14:55.611504
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/AS1A13_093T12_9000006118_45678cztM0_level2.fits modeM0/AS1A13_093T12_9000006118_45678cztM0_level2_quad_clean.evt
Size (bytes)193,098,24043,554,240
Size184.2 MB 41.5 MB
Events in quadrant A2,289,536301,572
Events in quadrant B1,450,164300,856
Events in quadrant C1,363,758279,808
Events in quadrant D1,848,757257,632

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A081190
B059000
C057410
D071980

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2492291.163724%
B2492622.487961%
C2493652.607300%
D24931034.131568%

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 2492 2492 22 22 0.88% 0.88%
B 2492 2492 50 50 2.01% 2.01%
C 2493 2493 60 60 2.41% 2.41%
D 2493 2493 53 53 2.13% 2.13%

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 10 83 1052261 17404.38 289 284 60.4
A 2 79 78919 1300.97 289 284 60.4
A 13 248 36096 592.49 289 284 60.4
B 5 172 188169 3377.71 281 273 55.6
B 15 201 38449 686.27 281 273 55.6
B 15 54 21323 378.41 281 273 55.6
C 14 254 253009 3875.12 275 277 65.2
C 2 14 29107 442.05 275 277 65.2
C 8 111 3174 44.42 275 277 65.2
D 1 52 507443 7064.13 279 269 71.8
D 13 249 110065 1529.28 279 269 71.8
D 2 249 57282 794.09 279 269 71.8

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