ASTROSAT CZTI

Data Quality Report

Orbit 13119

Creation date: 2024-06-27T16:36:34.737290
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/AS1A04_017T01_9000001932_13119cztM0_level2.evt modeM0/AS1A04_017T01_9000001932_13119cztM0_level2_quad_clean.evt
Size (bytes)771,696,00084,792,960
Size735.9 MB 80.9 MB
Events in quadrant A9,280,144438,571
Events in quadrant B6,201,729507,650
Events in quadrant C3,305,222574,885
Events in quadrant D4,095,616543,510

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0323652
B0230901
C0147301
D0172521

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7207284739.503261%
B7207118416.428472%
C7207550.763147%
D72073825.300402%

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 7523 7209 1899 1899 25.24% 26.34%
B 7523 7209 676 676 8.99% 9.38%
C 7523 7209 0 0 0.00% 0.00%
D 7523 7209 272 272 3.62% 3.77%

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 15 223 3728410 27121.03 671 655 137.4
A 15 239 1921650 13976.07 671 655 137.4
A 15 255 579702 4212.82 671 655 137.4
B 4 239 2491285 16281.8 795 774 153.0
B 3 64 324221 2114.55 795 774 153.0
B 0 85 166674 1084.58 795 774 153.0
C 0 207 23939 117.24 841 844 197.0
C 13 61 6067 26.51 841 844 197.0
C 12 4 2548 8.65 841 844 197.0
D 1 52 872929 4346.1 829 806 200.7
D 1 31 25153 121.33 829 806 200.7
D 2 234 21906 105.15 829 806 200.7

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