ASTROSAT CZTI

Data Quality Report

Orbit 48343

Creation date: 2024-09-05T13:04:22.486666
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_9000006424_48343cztM0_level2.fits modeM0/AS1A13_037T05_9000006424_48343cztM0_level2_quad_clean.evt
Size (bytes)456,733,440104,613,120
Size435.6 MB 99.8 MB
Events in quadrant A6,696,961691,675
Events in quadrant B3,356,465725,448
Events in quadrant C2,793,843692,394
Events in quadrant D3,567,467615,933

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0248851
B0142611
C0129561
D0150971

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63372103.313871%
B63371282.019883%
C6338370.583780%
D63382153.392237%

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 7447 6337 33 33 0.44% 0.52%
B 7447 6338 53 53 0.71% 0.84%
C 7448 6339 2 2 0.03% 0.03%
D 7448 6339 173 173 2.32% 2.73%

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 3866778 26424.34 706 695 146.3
A 13 248 93365 633.39 706 695 146.3
A 13 254 12642 81.66 706 695 146.3
B 4 21 419359 2993.74 708 685 139.8
B 0 200 77115 546.51 708 685 139.8
B 12 111 17443 119.83 708 685 139.8
C 12 2 22707 132.84 704 706 165.6
C 12 249 22290 130.32 704 706 165.6
C 13 61 4558 23.26 704 706 165.6
D 2 165 339953 1929.85 694 671 175.8
D 2 249 317292 1800.96 694 671 175.8
D 12 2 146750 830.9 694 671 175.8

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