ASTROSAT CZTI

Data Quality Report

Orbit 08441

Creation date: 2024-06-27T15:32:47.099094
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/AS1A03_074T01_9000001192_08441cztM0_level2.evt modeM0/AS1A03_074T01_9000001192_08441cztM0_level2_quad_clean.evt
Size (bytes)572,696,64082,028,160
Size546.2 MB 78.2 MB
Events in quadrant A3,519,026498,771
Events in quadrant B3,833,093497,109
Events in quadrant C3,511,198503,685
Events in quadrant D5,990,613480,708

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152223
B0158622
C0153402
D0226952

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72261702.352616%
B72262203.044561%
C72261632.255743%
D722679911.057293%

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 7851 7226 10 10 0.13% 0.14%
B 7851 7226 38 38 0.48% 0.53%
C 7851 7226 42 42 0.53% 0.58%
D 7851 7226 569 569 7.25% 7.87%

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 13 251 37664 201.57 895 875 182.5
A 4 2 23255 122.62 895 875 182.5
A 13 248 11658 59.08 895 875 182.5
B 0 214 120074 695.72 888 866 171.3
B 5 255 97747 565.41 888 866 171.3
B 4 81 88133 509.3 888 866 171.3
C 13 255 107708 529.07 867 869 201.9
C 13 61 22060 104.94 867 869 201.9
C 12 4 4888 19.9 867 869 201.9
D 12 233 1483851 7121.01 851 826 208.3
D 12 227 814066 3904.92 851 826 208.3
D 1 52 175134 836.97 851 826 208.3

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