ASTROSAT CZTI

Data Quality Report

Orbit 20160910_G05_214T01_9000000652_level2

Creation date: 2016-10-20T22:21:22.376259
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_214T01_9000000652cztM0_level2_bc.evt modeM0/AS1G05_214T01_9000000652cztM0_level2_quad_clean.evt
Size (bytes)5,236,038,7201,729,987,200
Size4.9 GB 1.6 GB
Events in quadrant A35,642,05310,348,968
Events in quadrant B35,991,23210,453,404
Events in quadrant C32,540,93810,527,712
Events in quadrant D43,249,1389,857,176

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03500010
B03494440
C03371550
D03773110

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02500
B02500
C02500
D02500

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A033320
B033320
C033300
D033320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A16363032621.993522%
B16363030441.860295%
C16362617381.062178%
D16362746022.812494%

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 188717 163640 132 132 0.07% 0.08%
B 188717 163636 32 32 0.02% 0.02%
C 188717 163639 8 8 0.00% 0.00%
D 188717 163639 553 553 0.29% 0.34%

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 0 247 2310024 1309.42 8023 7852 1758.2
A 0 50 1241048 701.41 8023 7852 1758.2
A 4 2 832457 469.02 8023 7852 1758.2
B 4 80 1348768 854.61 8181 7932 1568.9
B 15 204 1284561 813.69 8181 7932 1568.9
B 4 48 458722 287.32 8181 7932 1568.9
C 1 16 946523 527.08 8008 7865 1780.9
C 12 4 86623 44.22 8008 7865 1780.9
C 15 1 61122 29.91 8008 7865 1780.9
D 2 33 4980633 2663.37 7933 7596 1867.2
D 13 53 1335206 711.02 7933 7596 1867.2
D 2 136 1197966 637.52 7933 7596 1867.2

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