ASTROSAT CZTI

Data Quality Report

Orbit 20160522_G05_045T01_9000000468_level2

Creation date: 2016-09-06T17:50:01.638063
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_045T01_9000000468cztM0_level2_bc.evt modeM0/AS1G05_045T01_9000000468cztM0_level2_quad_clean.evt
Size (bytes)13,904,012,1604,005,443,520
Size12.9 GB 3.7 GB
Events in quadrant A79,655,10724,562,481
Events in quadrant B96,419,47824,412,785
Events in quadrant C141,076,43523,688,775
Events in quadrant D79,110,84223,667,989

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07837340
B08259200
C09625130
D07793650

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05380
B05380
C05380
D05380

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A074340
B074320
C074340
D074340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A36484163841.749803%
B36483759131.620724%
C364739227776.244739%
D36484045331.242462%

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 418797 364829 214 214 0.05% 0.06%
B 418797 364817 150 150 0.04% 0.04%
C 418797 364743 10320 10320 2.46% 2.83%
D 418797 364827 338 338 0.08% 0.09%

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 5899961 1524.94 17289 16899 3857.9
A 8 15 3172678 818.01 17289 16899 3857.9
A 0 118 1575908 404.11 17289 16899 3857.9
B 15 204 16728346 4961.72 17441 16922 3368.1
B 14 167 3113646 919.43 17441 16922 3368.1
B 4 81 1776446 522.41 17441 16922 3368.1
C 1 192 51702222 13660.2 16792 16491 3783.7
C 4 248 14537526 3837.81 16792 16491 3783.7
C 15 208 6017123 1585.93 16792 16491 3783.7
D 1 20 2070893 507.82 17227 16526 4045.5
D 13 223 1615085 395.15 17227 16526 4045.5
D 5 233 1377655 336.46 17227 16526 4045.5

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