ASTROSAT CZTI

Data Quality Report

Orbit 20160216_P01_163T03_9000000324_level2

Creation date: 2017-10-31T17:51:09.234463
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_163T03_9000000324cztM0_level2.evt modeM0/AS1P01_163T03_9000000324cztM0_level2_quad_clean.evt
Size (bytes)4,304,373,120348,474,240
Size4.0 GB 332.3 MB
Events in quadrant A35,004,5502,188,214
Events in quadrant B33,512,8552,242,003
Events in quadrant C31,101,7102,198,705
Events in quadrant D29,025,0312,135,238

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01224770
B01179470
C01109060
D01047740

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05300
B05300
C05300
D05300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0390
B0370
C0370
D0370

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A259828563.294589%
B260291480.568597%
C260521110.426071%
D260851220.467702%

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 29697 25986 2939 2939 9.90% 11.31%
B 29745 26034 1416 1416 4.76% 5.44%
C 29767 26056 1047 1047 3.52% 4.02%
D 29800 26089 919 919 3.08% 3.52%

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 0 128 3417227 1720.86 8209 8241 1981.0
A 0 199 186881 90.18 8209 8241 1981.0
A 10 2 33575 12.79 8209 8241 1981.0
B 4 48 456649 222.36 8619 8664 2014.7
B 5 68 178034 84.07 8619 8664 2014.7
B 0 220 68619 29.76 8619 8664 2014.7
C 14 48 121456 51.65 7893 8167 2193.3
C 14 223 93840 39.06 7893 8167 2193.3
C 10 82 60576 23.89 7893 8167 2193.3
D 13 53 184890 74.43 7646 7923 2377.7
D 2 32 80319 30.45 7646 7923 2377.7
D 7 85 71497 26.74 7646 7923 2377.7

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