ASTROSAT CZTI

Data Quality Report

Orbit 47842

Creation date: 2024-08-03T12:16:55.176868
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/AS1T05_216T01_9000006356_47842cztM0_level2.fits modeM0/AS1T05_216T01_9000006356_47842cztM0_level2_quad_clean.evt
Size (bytes)696,075,840108,624,960
Size663.8 MB 103.6 MB
Events in quadrant A7,253,657772,671
Events in quadrant B3,599,118779,434
Events in quadrant C3,272,774760,526
Events in quadrant D11,080,070472,052

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0273050
B0158240
C0152470
D0379395

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72411151.588178%
B7242951.311792%
C7242350.483292%
D7241270737.384339%

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 7241 7241 8 8 0.11% 0.11%
B 7242 7242 62 62 0.86% 0.86%
C 7242 7242 31 31 0.43% 0.43%
D 7240 7240 2426 2426 33.51% 33.51%

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 4129646 24729.45 800 782 167.0
A 13 248 15177 86.22 800 782 167.0
A 10 255 14914 84.64 800 782 167.0
B 0 186 199475 1275.48 789 767 155.8
B 4 21 70252 446.01 789 767 155.8
B 5 252 43887 276.78 789 767 155.8
C 12 2 120756 648.22 784 789 185.1
C 14 254 58020 309.24 784 789 185.1
C 12 249 18410 95.21 784 789 185.1
D 2 165 6248699 36441.23 675 656 171.5
D 12 2 1452578 8468.22 675 656 171.5
D 2 37 544857 3174.01 675 656 171.5

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