ASTROSAT CZTI

Data Quality Report

Orbit 29182

Creation date: 2024-06-27T20:01:12.672002
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/AS1A10_021T08_9000004186_29182cztM0_level2.evt modeM0/AS1A10_021T08_9000004186_29182cztM0_level2_quad_clean.evt
Size (bytes)525,873,60092,508,480
Size501.5 MB 88.2 MB
Events in quadrant A3,465,942594,458
Events in quadrant B3,681,132609,930
Events in quadrant C3,747,067587,538
Events in quadrant D4,608,674573,574

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143362
B0151322
C0153462
D0179752

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6242781.249599%
B62421262.018584%
C62421692.707466%
D62422514.021147%

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 7607 6243 1 1 0.01% 0.02%
B 7607 6243 8 8 0.11% 0.13%
C 7607 6243 0 0 0.00% 0.00%
D 7607 6243 125 125 1.64% 2.00%

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 13 254 12270 64.02 897 884 177.8
A 3 137 8175 41.0 897 884 177.8
A 0 226 7519 37.31 897 884 177.8
B 0 183 111834 668.24 894 874 166.0
B 5 255 43194 254.87 894 874 166.0
B 12 111 19832 114.17 894 874 166.0
C 3 233 181209 896.24 874 887 201.2
C 14 238 142605 704.37 874 887 201.2
C 2 114 15330 71.78 874 887 201.2
D 1 52 575415 2798.51 870 851 205.3
D 8 195 486016 2363.08 870 851 205.3
D 13 153 91517 441.6 870 851 205.3

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