ASTROSAT CZTI

Data Quality Report

Orbit 44781

Creation date: 2024-06-27T23:06:29.529796
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_004T13_9000006022_44781cztM0_level2.fits modeM0/AS1A13_004T13_9000006022_44781cztM0_level2_quad_clean.evt
Size (bytes)502,603,200112,452,480
Size479.3 MB 107.2 MB
Events in quadrant A5,375,830745,025
Events in quadrant B3,666,352776,779
Events in quadrant C3,582,323736,672
Events in quadrant D5,431,530654,273

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220021
B0158771
C0159361
D0210511

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70662193.099349%
B70661492.108689%
C70662133.014435%
D70665157.288423%

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 7786 7066 11 11 0.14% 0.16%
B 7786 7066 25 25 0.32% 0.35%
C 7786 7067 162 162 2.08% 2.29%
D 7786 7066 437 437 5.61% 6.18%

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 2179919 13432.13 783 764 162.2
A 13 248 59144 359.85 783 764 162.2
A 7 3 46668 282.95 783 764 162.2
B 0 155 182578 1167.66 790 764 155.7
B 5 255 127907 816.55 790 764 155.7
B 4 171 64230 407.6 790 764 155.7
C 12 2 481166 2629.99 777 780 182.7
C 14 254 42766 229.86 777 780 182.7
C 5 128 9763 49.18 777 780 182.7
D 5 222 1143373 6036.34 749 727 189.3
D 13 249 304509 1604.81 749 727 189.3
D 2 249 255316 1344.94 749 727 189.3

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