ASTROSAT CZTI

Data Quality Report

Orbit 09110

Creation date: 2024-06-27T15:41:25.706633
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_105T01_9000001268_09110cztM0_level2.evt modeM0/AS1A03_105T01_9000001268_09110cztM0_level2_quad_clean.evt
Size (bytes)455,230,08074,851,200
Size434.1 MB 71.4 MB
Events in quadrant A3,415,913455,642
Events in quadrant B3,270,415451,686
Events in quadrant C3,162,957442,678
Events in quadrant D3,463,256431,476

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015403880
B015170908
C015108901
D0162291150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01522
B01524
C015212
D015210

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6975480.688172%
B6958781.121012%
C6958580.833573%
D69161091.576056%

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 8049 7340 0 0 0.00% 0.00%
B 8049 7310 0 0 0.00% 0.00%
C 8049 7325 5 5 0.06% 0.07%
D 8049 7311 41 41 0.51% 0.56%

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 8 5 139649 800.14 838 819 173.5
A 1 162 35140 197.81 838 819 173.5
A 0 226 7586 39.0 838 819 173.5
B 12 111 18391 107.83 836 816 163.0
B 11 111 14949 86.71 836 816 163.0
B 14 111 10933 62.07 836 816 163.0
C 14 234 22189 113.9 803 805 187.8
C 12 4 7468 35.49 803 805 187.8
C 13 61 5923 27.26 803 805 187.8
D 1 52 308146 1477.96 795 776 208.0
D 12 233 37045 174.4 795 776 208.0
D 2 234 24957 116.27 795 776 208.0

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