ASTROSAT CZTI

Data Quality Report

Orbit 11064

Creation date: 2024-06-27T16:07:45.390847
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/AS1A04_053T01_9000001610_11064cztM0_level2.evt modeM0/AS1A04_053T01_9000001610_11064cztM0_level2_quad_clean.evt
Size (bytes)255,216,96057,916,800
Size243.4 MB 55.2 MB
Events in quadrant A1,499,413381,645
Events in quadrant B2,368,579375,983
Events in quadrant C1,465,325377,342
Events in quadrant D2,146,738360,891

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A072870
B095690
C072940
D089030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A363730.082486%
B36371413.876822%
C363730.082486%
D3637551.512235%

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 3637 3637 0 0 0.00% 0.00%
B 3637 3637 108 108 2.97% 2.97%
C 3637 3637 1 1 0.03% 0.03%
D 3637 3637 55 55 1.51% 1.51%

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 14 254 7822 92.46 387 379 80.5
A 0 226 3479 38.51 387 379 80.5
A 12 194 3081 33.57 387 379 80.5
B 4 239 672967 9056.43 383 375 74.3
B 0 197 72932 976.98 383 375 74.3
B 15 204 42440 566.4 383 375 74.3
C 14 234 7630 83.12 370 373 87.3
C 8 128 5947 63.85 370 373 87.3
C 8 112 3643 37.45 370 373 87.3
D 1 52 215724 2401.54 367 356 89.7
D 14 34 141986 1579.3 367 356 89.7
D 8 195 135474 1506.68 367 356 89.7

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