ASTROSAT CZTI

Data Quality Report

Orbit 20160617_G05_167T01_9000000500_level2

Creation date: 2016-09-06T17:49:17.082992
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/AS1G05_167T01_9000000500cztM0_level2_bc.evt modeM0/AS1G05_167T01_9000000500cztM0_level2_quad_clean.evt
Size (bytes)609,071,040178,237,440
Size580.9 MB 170.0 MB
Events in quadrant A3,202,7711,154,801
Events in quadrant B8,424,8321,104,521
Events in quadrant C2,758,5171,140,881
Events in quadrant D3,170,1381,101,287

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0288990
B0443700
C0271300
D0285740

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02640
B02640
C02640
D02640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A129741511.163866%
B12973147611.377476%
C12974930.716818%
D129741451.117620%

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 15124 12974 4 4 0.03% 0.03%
B 15124 12974 818 818 5.41% 6.30%
C 15123 12973 30 30 0.20% 0.23%
D 15124 12974 17 17 0.11% 0.13%

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 0 118 228647 1530.88 649 636 148.9
A 0 50 160973 1076.51 649 636 148.9
A 0 199 102961 687.02 649 636 148.9
B 7 221 5465513 43471.6 630 615 125.7
B 15 204 279589 2219.15 630 615 125.7
B 10 16 93803 741.28 630 615 125.7
C 7 222 81554 551.38 638 633 146.8
C 12 4 77067 520.8 638 633 146.8
C 10 65 54044 363.93 638 633 146.8
D 1 20 191475 1259.63 637 615 151.5
D 13 239 177387 1166.65 637 615 151.5
D 13 223 135899 892.84 637 615 151.5

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