ASTROSAT CZTI

Data Quality Report

Orbit 20160428_G05_218T02_9000000434_level2

Creation date: 2016-09-06T17:50:56.715182
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_218T02_9000000434cztM0_level2_bc.evt modeM0/AS1G05_218T02_9000000434cztM0_level2_quad_clean.evt
Size (bytes)4,476,672,0001,692,768,960
Size4.2 GB 1.6 GB
Events in quadrant A28,625,00210,860,072
Events in quadrant B27,657,71911,054,031
Events in quadrant C37,026,50710,481,498
Events in quadrant D33,812,41310,372,368

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02733330
B02678940
C03080950
D02913750

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01710
B01710
C01710
D01710

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A025160
B025160
C025160
D025160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A12410630882.488196%
B12410621971.770261%
C12410664285.179443%
D12410638883.132806%

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 140952 124102 150 150 0.11% 0.12%
B 140952 124104 57 57 0.04% 0.05%
C 140951 124046 1171 1171 0.83% 0.94%
D 140952 124107 286 286 0.20% 0.23%

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 14 249 2819926 2158.12 5881 5750 1304.0
A 12 247 974914 743.23 5881 5750 1304.0
A 0 149 820295 624.65 5881 5750 1304.0
B 4 80 833757 709.58 6003 5830 1166.8
B 4 81 832981 708.92 6003 5830 1166.8
B 2 249 725782 617.04 6003 5830 1166.8
C 1 192 6167674 4856.04 5649 5552 1269.0
C 14 223 5529831 4353.39 5649 5552 1269.0
C 12 206 1265587 992.97 5649 5552 1269.0
D 5 233 2988959 2210.4 5777 5556 1349.7
D 2 136 2777694 2053.87 5777 5556 1349.7
D 13 223 1168258 861.44 5777 5556 1349.7

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