ASTROSAT CZTI

Data Quality Report

Orbit 41973

Creation date: 2024-06-27T22:35:12.997256
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/AS1A12_104T01_9000005728_41973cztM0_level2.fits modeM0/AS1A12_104T01_9000005728_41973cztM0_level2_quad_clean.evt
Size (bytes)328,628,16097,565,760
Size313.4 MB 93.0 MB
Events in quadrant A3,150,567653,567
Events in quadrant B2,627,280664,922
Events in quadrant C2,749,317635,074
Events in quadrant D3,172,297583,244

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130463
B0120882
C0119932
D0137022

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5971220.368447%
B5971100.167476%
C597110.016748%
D5971921.540780%

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 7255 5972 8 8 0.11% 0.13%
B 7255 5972 3 3 0.04% 0.05%
C 7255 5972 0 0 0.00% 0.00%
D 7255 5972 73 73 1.01% 1.22%

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 547795 4114.8 648 635 133.0
A 14 250 49785 369.62 648 635 133.0
A 2 79 42564 315.32 648 635 133.0
B 0 190 58267 461.26 642 622 125.0
B 0 156 30504 239.11 642 622 125.0
B 12 111 16113 123.96 642 622 125.0
C 15 214 259871 1749.52 634 637 148.2
C 8 79 17297 112.44 634 637 148.2
C 13 61 4251 24.39 634 637 148.2
D 13 249 347952 2238.01 632 614 155.2
D 2 120 100487 643.51 632 614 155.2
D 12 6 84548 540.81 632 614 155.2

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