ASTROSAT CZTI

Data Quality Report

Orbit 47594

Creation date: 2024-07-17T01:25:02.486837
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/AS1A13_037T05_9000006338_47594cztM0_level2.fits modeM0/AS1A13_037T05_9000006338_47594cztM0_level2_quad_clean.evt
Size (bytes)546,649,920112,786,560
Size521.3 MB 107.6 MB
Events in quadrant A7,661,104742,196
Events in quadrant B3,546,826782,737
Events in quadrant C3,055,547745,521
Events in quadrant D5,442,035667,585

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0277631
B0152801
C0142071
D0208632

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68403655.336257%
B68411041.520246%
C6841190.277737%
D68403104.532164%

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 7455 6841 84 84 1.13% 1.23%
B 7456 6842 20 20 0.27% 0.29%
C 7456 6842 0 0 0.00% 0.00%
D 7455 6841 298 298 4.00% 4.36%

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 10 83 4017354 25358.02 768 751 158.4
A 9 191 395677 2493.29 768 751 158.4
A 15 235 107482 673.82 768 751 158.4
B 5 172 133357 871.76 774 751 152.1
B 0 200 101834 664.52 774 751 152.1
B 5 32 66713 433.64 774 751 152.1
C 3 233 97744 549.14 754 758 176.6
C 14 254 8479 43.71 754 758 176.6
C 1 3 6363 31.73 754 758 176.6
D 14 34 842743 4506.24 747 723 186.9
D 2 249 486355 2598.96 747 723 186.9
D 2 165 356816 1905.7 747 723 186.9

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