ASTROSAT CZTI

Data Quality Report

Orbit 20161016_G06_115T01_9000000734_level2

Creation date: 2017-10-27T01:11:53.999076
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/AS1G06_115T01_9000000734cztM0_level2.evt modeM0/AS1G06_115T01_9000000734cztM0_level2_quad_clean.evt
Size (bytes)5,230,062,7201,020,896,640
Size4.9 GB 973.6 MB
Events in quadrant A35,197,8146,429,948
Events in quadrant B40,520,7716,486,757
Events in quadrant C36,399,7326,477,973
Events in quadrant D41,028,5546,199,946

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01594340
B01718210
C01618610
D01768780

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015830
B015880
C015820
D015880

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A776997580.975560%
B7766414631.883756%
C777006120.787645%
D7771516262.092260%

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 89472 78115 9 9 0.01% 0.01%
B 89472 78101 441 441 0.49% 0.56%
C 89472 78109 17 17 0.02% 0.02%
D 89472 78121 730 730 0.82% 0.93%

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 50 135712 69.62 9053 8867 1822.1
A 12 194 87988 43.42 9053 8867 1822.1
A 0 226 87678 43.25 9053 8867 1822.1
B 15 204 1876848 1091.13 9121 8911 1711.9
B 5 172 1341402 778.36 9121 8911 1711.9
B 11 51 609388 350.76 9121 8911 1711.9
C 1 16 1792420 893.54 8792 8818 1996.1
C 3 9 139575 65.51 8792 8818 1996.1
C 13 61 71249 31.28 8792 8818 1996.1
D 2 152 2094942 983.96 8770 8499 2120.5
D 1 239 1703267 799.25 8770 8499 2120.5
D 2 14 796617 371.67 8770 8499 2120.5

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