ASTROSAT CZTI

Data Quality Report

Orbit 47717

Creation date: 2024-07-25T09:16:40.229532
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_213T01_9000006344_47717cztM0_level2.fits modeM0/AS1T05_213T01_9000006344_47717cztM0_level2_quad_clean.evt
Size (bytes)490,867,200113,659,200
Size468.1 MB 108.4 MB
Events in quadrant A7,290,888740,499
Events in quadrant B3,600,202771,391
Events in quadrant C3,078,421750,537
Events in quadrant D3,647,250682,198

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0266552
B0154253
C0144782
D0159602

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71313224.515496%
B71311251.752910%
C7131700.981630%
D71311371.921189%

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 8830 7132 45 45 0.51% 0.63%
B 8830 7130 7 7 0.08% 0.10%
C 8830 7131 0 0 0.00% 0.00%
D 8830 7130 66 66 0.75% 0.93%

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 4132589 25392.25 783 767 162.7
A 9 191 77126 469.27 783 767 162.7
A 13 248 49516 299.59 783 767 162.7
B 0 200 220042 1409.42 788 764 155.6
B 5 32 111901 714.34 788 764 155.6
B 0 198 55630 352.65 788 764 155.6
C 14 254 16193 84.52 784 786 182.3
C 12 250 6041 28.83 784 786 182.3
C 13 61 5153 23.96 784 786 182.3
D 10 181 151069 783.76 777 752 191.8
D 12 33 129855 673.15 777 752 191.8
D 5 171 98072 507.43 777 752 191.8

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