ASTROSAT CZTI

Data Quality Report

Orbit 13133

Creation date: 2024-06-27T16:36:45.908708
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/AS1A04_053T05_9000001936_13133cztM0_level2.evt modeM0/AS1A04_053T05_9000001936_13133cztM0_level2_quad_clean.evt
Size (bytes)557,631,360108,118,080
Size531.8 MB 103.1 MB
Events in quadrant A3,439,746707,782
Events in quadrant B6,388,040658,435
Events in quadrant C3,118,818721,688
Events in quadrant D3,457,215689,689

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149932
B0237631
C0145271
D0154561

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71272072.904448%
B7127133318.703522%
C71271321.852112%
D71271602.244984%

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 7288 7129 8 8 0.11% 0.11%
B 7288 7129 790 790 10.84% 11.08%
C 7288 7129 1 1 0.01% 0.01%
D 7288 7129 14 14 0.19% 0.20%

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 12 189 139358 836.39 817 797 165.7
A 15 223 80312 479.97 817 797 165.7
A 15 239 31368 184.54 817 797 165.7
B 4 239 2684205 18835.34 744 725 142.5
B 0 85 357033 2500.93 744 725 142.5
B 3 64 233539 1634.12 744 725 142.5
C 8 128 9236 46.04 792 794 183.4
C 12 4 8398 41.47 792 794 183.4
C 13 61 5926 27.99 792 794 183.4
D 1 52 228748 1204.99 789 765 189.2
D 5 222 53708 279.83 789 765 189.2
D 10 157 51874 270.13 789 765 189.2

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