ASTROSAT CZTI

Data Quality Report

Orbit 09395

Creation date: 2024-06-27T15:45:29.677122
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/AS1G07_069T01_9000001332_09395cztM0_level2.evt modeM0/AS1G07_069T01_9000001332_09395cztM0_level2_quad_clean.evt
Size (bytes)454,481,28092,021,760
Size433.4 MB 87.8 MB
Events in quadrant A3,717,413578,086
Events in quadrant B3,070,056588,439
Events in quadrant C2,942,445600,286
Events in quadrant D3,599,104573,370

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01542138
B01355829
C01321130
D01521638

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01302

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6405360.562061%
B6406480.749298%
C6405130.202966%
D64041131.764522%

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 7584 6420 7 7 0.09% 0.11%
B 7584 6420 5 5 0.07% 0.08%
C 7584 6420 0 0 0.00% 0.00%
D 7584 6419 67 67 0.88% 1.04%

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 5 605738 3969.34 748 732 152.4
A 5 16 150807 984.62 748 732 152.4
A 5 112 57911 375.14 748 732 152.4
B 5 174 77296 535.32 759 741 143.0
B 0 214 19769 133.06 759 741 143.0
B 12 111 15437 102.76 759 741 143.0
C 13 61 5533 27.65 751 754 172.8
C 1 3 3895 18.17 751 754 172.8
C 4 254 3813 17.7 751 754 172.8
D 12 233 522450 2827.36 734 717 184.5
D 1 52 98318 528.92 734 717 184.5
D 2 14 59631 319.26 734 717 184.5

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