ASTROSAT CZTI

Data Quality Report

Orbit 20160605_G05_248T01_9000000486_level2

Creation date: 2016-09-06T17:49:36.305002
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_248T01_9000000486cztM0_level2_bc.evt modeM0/AS1G05_248T01_9000000486cztM0_level2_quad_clean.evt
Size (bytes)13,052,995,2003,677,276,160
Size12.2 GB 3.4 GB
Events in quadrant A93,876,34322,660,752
Events in quadrant B105,658,04522,402,815
Events in quadrant C64,975,03522,505,896
Events in quadrant D108,695,31521,547,297

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A066140
B066140
C066140
D066140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04580
B04580
C04580
D04580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07843610
B08165710
C06769170
D08208880

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A324988119913.689675%
B324988120173.697675%
C32498729110.895728%
D324988135854.180154%

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 370840 324974 1006 1006 0.27% 0.31%
B 370840 324972 966 966 0.26% 0.30%
C 370840 324985 43 43 0.01% 0.01%
D 370840 324984 3192 3192 0.86% 0.98%

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 13 251 13405464 3840.13 15593 15235 3486.9
A 0 118 10660042 3052.78 15593 15235 3486.9
A 8 15 3413230 974.5 15593 15235 3486.9
B 0 173 16277014 5406.81 15617 15157 3007.7
B 15 204 16087407 5343.77 15617 15157 3007.7
B 14 167 2457808 812.14 15617 15157 3007.7
C 2 53 3087012 888.59 15389 15107 3457.1
C 1 16 342200 94.62 15389 15107 3457.1
C 12 4 267847 73.11 15389 15107 3457.1
D 1 20 12166452 3278.92 15394 14746 3706.0
D 12 79 8245566 2220.94 15394 14746 3706.0
D 1 84 8184211 2204.38 15394 14746 3706.0

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