ASTROSAT CZTI

Data Quality Report

Orbit 20190719_A06_003T04_9000003046_level2

Creation date: 2019-07-22T18:34:33.341195
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/AS1A06_003T04_9000003046cztM0_level2_bc.evt modeM0/AS1A06_003T04_9000003046cztM0_level2_quad_clean.evt
Size (bytes)7,529,362,5602,466,705,600
Size7.0 GB 2.3 GB
Events in quadrant A41,701,55815,717,187
Events in quadrant B48,135,01915,941,510
Events in quadrant C44,611,50415,384,879
Events in quadrant D80,809,46514,813,010

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03986630
B04290170
C04131060
D05400040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A038260
B038260
C038260
D038260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03410
B03410
C03410
D03410

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A18773721851.163862%
B18773737321.987887%
C18773737431.993747%
D187737103505.513032%

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 221047 187743 31 31 0.01% 0.02%
B 221048 187742 39 39 0.02% 0.02%
C 221047 187741 50 50 0.02% 0.03%
D 221047 187737 1191 1191 0.54% 0.63%

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 569166 250.55 10390 10219 2230.8
A 5 16 560059 246.47 10390 10219 2230.8
A 15 174 199865 85.01 10390 10219 2230.8
B 7 220 2951841 1513.24 10430 10182 1944.0
B 0 189 911155 463.47 10430 10182 1944.0
B 0 190 779452 395.72 10430 10182 1944.0
C 8 208 3808502 1626.21 9987 9956 2335.8
C 3 9 1084293 459.94 9987 9956 2335.8
C 9 54 573114 241.1 9987 9956 2335.8
D 5 222 18991680 8147.46 10075 9747 2329.8
D 1 20 9255679 3968.56 10075 9747 2329.8
D 1 52 3694644 1581.64 10075 9747 2329.8

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