ASTROSAT CZTI

Data Quality Report

Orbit 20151210_P01_999T99_9000000194_level2

Creation date: 2016-09-06T17:56:40.531225
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/AS1P01_999T99_9000000194cztM0_level2_bc.evt modeM0/AS1P01_999T99_9000000194cztM0_level2_quad_clean.evt
Size (bytes)28,549,44016,329,600
Size27.2 MB 15.6 MB
Events in quadrant A172,919102,101
Events in quadrant B203,087103,407
Events in quadrant C231,875102,502
Events in quadrant D171,575100,648

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A042770
B044830
C041250
D036960

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A112500.000000%
B112540.355556%
C112500.000000%
D112500.000000%

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 1124 1124 0 0 0.00% 0.00%
B 1125 1125 0 0 0.00% 0.00%
C 1125 1125 0 0 0.00% 0.00%
D 1125 1125 0 0 0.00% 0.00%

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 13 235 542 43.97 44 43 11.3
A 12 243 155 9.87 44 43 11.3
A 15 233 127 7.4 44 43 11.3
B 5 184 14437 1375.72 45 44 10.5
B 5 191 11210 1067.28 45 44 10.5
B 4 232 2036 190.4 45 44 10.5
C 15 241 51139 4358.55 44 43 11.7
C 3 79 2192 183.31 44 43 11.7
C 3 111 1777 147.91 44 43 11.7
D 2 216 3061 260.27 43 42 11.6
D 13 13 1041 86.12 43 42 11.6
D 15 13 1030 85.17 43 42 11.6

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