ASTROSAT CZTI

Data Quality Report

Orbit 20161129_G06_132T01_9000000838_level2

Creation date: 2017-09-19T07:53:14.340138
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_132T01_9000000838cztM0_level2.evt modeM0/AS1G06_132T01_9000000838cztM0_level2_quad_clean.evt
Size (bytes)2,165,590,080314,847,360
Size2.0 GB 300.3 MB
Events in quadrant A12,275,8092,011,538
Events in quadrant B16,096,3011,965,387
Events in quadrant C11,801,2792,004,539
Events in quadrant D23,669,8641,775,687

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0542320
B0653460
C0540960
D0880580

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05280
B05280
C05280
D05280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A258532180.843229%
B2585313875.364948%
C258531700.657564%
D25853270410.459134%

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 28003 25860 21 21 0.07% 0.08%
B 28003 25860 725 725 2.59% 2.80%
C 28003 25860 55 55 0.20% 0.21%
D 28003 25860 2510 2510 8.96% 9.71%

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 15 236 382492 632.4 2979 2909 600.2
A 13 251 141590 231.05 2979 2909 600.2
A 3 1 101038 163.49 2979 2909 600.2
B 3 64 3488467 6196.68 2953 2885 562.5
B 0 219 353015 622.46 2953 2885 562.5
B 15 204 270728 476.17 2953 2885 562.5
C 4 254 492562 737.58 2878 2883 663.9
C 9 54 38316 53.37 2878 2883 663.9
C 13 61 23000 30.3 2878 2883 663.9
D 12 220 4782497 7072.69 2773 2683 675.8
D 12 221 2842569 4202.18 2773 2683 675.8
D 1 239 2251072 3326.94 2773 2683 675.8

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