ASTROSAT CZTI

Data Quality Report

Orbit 20160501_G05_233T10_9000000438_level2

Creation date: 2016-09-06T17:50:50.481998
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_233T10_9000000438cztM0_level2_bc.evt modeM0/AS1G05_233T10_9000000438cztM0_level2_quad_clean.evt
Size (bytes)8,623,546,5601,403,792,640
Size8.0 GB 1.3 GB
Events in quadrant A28,681,0548,811,152
Events in quadrant B33,266,8998,817,489
Events in quadrant C154,624,0287,271,609
Events in quadrant D35,484,9888,416,552

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02854820
B02939300
C06900590
D03064920

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A027240
B027240
C027240
D027240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01830
B01830
C01830
D01840

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A13414924671.839000%
B13414923411.745075%
C1340965156338.452303%
D13399829042.167197%

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 151784 134136 19 19 0.01% 0.01%
B 151784 134135 50 50 0.03% 0.04%
C 151784 134077 27957 27957 18.42% 20.85%
D 151784 133994 147 147 0.10% 0.11%

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 0 199 2383449 1674.48 6375 6240 1419.7
A 0 118 655285 457.18 6375 6240 1419.7
A 8 15 322940 223.08 6375 6240 1419.7
B 15 204 5471208 4377.79 6490 6307 1248.3
B 2 249 863822 686.93 6490 6307 1248.3
B 4 80 419033 330.62 6490 6307 1248.3
C 12 206 121248492 103433.52 5234 5173 1172.2
C 1 192 8761396 7469.99 5234 5173 1172.2
C 14 223 1560409 1326.78 5234 5173 1172.2
D 13 223 3263129 2203.49 6255 6020 1478.2
D 13 114 1702088 1147.42 6255 6020 1478.2
D 13 120 1534354 1033.94 6255 6020 1478.2

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