ASTROSAT CZTI

Data Quality Report

Orbit 20200113_C05_002T02_9000003432_level2

Creation date: 2020-01-16T16:30:15.586028
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/AS1C05_002T02_9000003432cztM0_level2_bc.evt modeM0/AS1C05_002T02_9000003432cztM0_level2_quad_clean.evt
Size (bytes)225,414,72058,129,920
Size215.0 MB 55.4 MB
Events in quadrant A946,576373,933
Events in quadrant B996,256381,241
Events in quadrant C1,721,272354,025
Events in quadrant D2,843,109329,020

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B0980
C0980
D01000

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A096070
B097980
C0125710
D0161180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4589330.719111%
B4594751.632564%
C45383076.765095%
D453274716.482789%

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 10848 4675 0 0 0.00% 0.00%
B 10848 4673 1 1 0.01% 0.02%
C 10848 4621 10 10 0.09% 0.22%
D 10847 4605 274 274 2.53% 5.95%

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 13 254 6482 113.46 244 239 55.0
A 0 226 1585 24.46 244 239 55.0
A 12 194 1468 22.34 244 239 55.0
B 10 247 13757 268.64 248 241 50.3
B 3 64 13518 263.89 248 241 50.3
B 0 190 13448 262.5 248 241 50.3
C 2 16 699600 12543.89 228 226 55.8
C 0 10 131976 2363.05 228 226 55.8
C 7 247 8324 145.24 228 226 55.8
D 1 52 1087347 20077.2 222 212 54.1
D 2 82 354994 6552.11 222 212 54.1
D 7 238 241388 4454.04 222 212 54.1

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