ASTROSAT CZTI

Data Quality Report

Orbit 27266

Creation date: 2024-06-27T19:38:14.192697
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

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/AS1T03_243T01_9000003918_27266cztM0_level2.evt modeM0/AS1T03_243T01_9000003918_27266cztM0_level2_quad_clean.evt
Size (bytes)555,563,52080,064,000
Size529.8 MB 76.4 MB
Events in quadrant A3,337,906503,950
Events in quadrant B4,273,199506,882
Events in quadrant C3,324,224487,275
Events in quadrant D5,441,117464,534

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139990
B0169430
C0139680
D0207380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6617630.952093%
B66172764.171075%
C66171201.813511%
D66173975.999698%

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 7652 6618 0 0 0.00% 0.00%
B 7652 6618 112 112 1.46% 1.69%
C 7652 6618 0 0 0.00% 0.00%
D 7652 6617 225 225 2.94% 3.40%

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 8 192 9947 52.87 863 846 172.1
A 13 254 9907 52.64 863 846 172.1
A 3 137 8035 41.77 863 846 172.1
B 10 245 694250 4269.45 847 825 162.4
B 3 64 232337 1425.43 847 825 162.4
B 12 111 19659 115.96 847 825 162.4
C 14 238 133823 694.79 819 823 191.4
C 13 61 5551 24.7 819 823 191.4
C 15 78 2017 6.23 819 823 191.4
D 1 52 2307749 11288.32 810 793 204.4
D 2 250 38717 185.57 810 793 204.4
D 2 234 24408 115.55 810 793 204.4

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