ASTROSAT CZTI

Data Quality Report

Orbit 20190723_A05_103T05_9000003052_level2

Creation date: 2019-07-29T15:31:12.969301
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/AS1A05_103T05_9000003052cztM0_level2_bc.evt modeM0/AS1A05_103T05_9000003052cztM0_level2_quad_clean.evt
Size (bytes)666,855,360261,155,520
Size636.0 MB 249.1 MB
Events in quadrant A4,334,0621,693,516
Events in quadrant B4,492,6621,690,111
Events in quadrant C3,931,2251,627,040
Events in quadrant D6,131,6571,585,263

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0406750
B0412820
C0396460
D0461560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0410
B0410
C0410
D0410

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03880
B03900
C03900
D03900

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A190782031.064053%
B190752541.331586%
C190702501.310960%
D190822641.383503%

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 23189 19092 0 0 0.00% 0.00%
B 23189 19092 4 4 0.02% 0.02%
C 23189 19089 0 0 0.00% 0.00%
D 23189 19092 19 19 0.08% 0.10%

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 12 16 168924 725.83 1044 1026 231.3
A 5 16 106649 456.61 1044 1026 231.3
A 12 194 35206 147.76 1044 1026 231.3
B 7 220 104682 521.0 1043 1019 199.0
B 0 219 92858 461.58 1043 1019 199.0
B 0 189 52149 256.98 1043 1019 199.0
C 7 247 53716 223.15 993 987 236.3
C 3 9 29650 121.3 993 987 236.3
C 3 233 19956 80.28 993 987 236.3
D 1 52 1427641 5971.42 1014 978 238.9
D 7 238 299086 1247.76 1014 978 238.9
D 2 165 203439 847.42 1014 978 238.9

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