ASTROSAT CZTI

Data Quality Report

Orbit 20191113_A07_047T09_9000003300_level2

Creation date: 2019-11-15T10:24:57.799563
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev: 1121 $

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/AS1A07_047T09_9000003300cztM0_level2_bc.evt modeM0/AS1A07_047T09_9000003300cztM0_level2_quad_clean.evt
Size (bytes)243,872,640112,069,440
Size232.6 MB 106.9 MB
Events in quadrant A1,579,498721,306
Events in quadrant B1,629,148734,741
Events in quadrant C1,508,329703,641
Events in quadrant D2,121,646685,281

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0165010
B0166110
C0164910
D0181760

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79073444.350575%
B79073664.628810%
C79073754.742633%
D79073224.072341%

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 8267 7907 0 0 0.00% 0.00%
B 8267 7907 0 0 0.00% 0.00%
C 8267 7906 0 0 0.00% 0.00%
D 8267 7908 19 19 0.23% 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 4 2 18808 203.36 403 394 90.6
A 13 254 8760 92.39 403 394 90.6
A 3 1 5042 51.33 403 394 90.6
B 0 190 28027 343.33 408 397 80.5
B 3 64 8853 105.08 408 397 80.5
B 0 197 7062 82.82 408 397 80.5
C 8 128 4293 41.54 390 387 94.0
C 13 61 2243 19.74 390 387 94.0
C 8 112 2020 17.37 390 387 94.0
D 1 52 243974 2575.36 397 383 94.6
D 14 34 217998 2300.73 397 383 94.6
D 13 172 42730 447.71 397 383 94.6

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