ASTROSAT CZTI

Data Quality Report

Orbit 46286

Creation date: 2024-06-27T23:21:16.600151
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_072T01_9000006192_46286cztM0_level2.fits modeM0/AS1A13_072T01_9000006192_46286cztM0_level2_quad_clean.evt
Size (bytes)179,573,76045,005,760
Size171.3 MB 42.9 MB
Events in quadrant A2,366,722305,030
Events in quadrant B1,701,846314,324
Events in quadrant C1,145,087293,282
Events in quadrant D1,235,395269,335

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A084801
B067981
C051201
D053651

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2524331.307448%
B2524120.475436%
C252410.039620%
D252550.198020%

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 2524 2524 0 0 0.00% 0.00%
B 2524 2524 5 5 0.20% 0.20%
C 2524 2524 1 1 0.04% 0.04%
D 2525 2525 6 6 0.24% 0.24%

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 1209337 19344.44 298 292 62.5
A 13 254 4262 63.52 298 292 62.5
A 9 191 3332 48.64 298 292 62.5
B 3 112 415904 7239.1 293 285 57.4
B 5 172 78678 1365.42 293 285 57.4
B 0 190 20396 350.29 293 285 57.4
C 12 2 12637 181.29 289 289 68.1
C 2 14 2967 39.32 289 289 68.1
C 14 67 2829 37.29 289 289 68.1
D 13 249 49846 680.73 291 282 72.8
D 1 52 20959 283.98 291 282 72.8
D 5 171 20714 280.62 291 282 72.8

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