ASTROSAT CZTI

Data Quality Report

Orbit 02293

Creation date: 2024-06-27T14:15:46.379979
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/AS1T01_058T01_9000000348_02293cztM0_level2.evt modeM0/AS1T01_058T01_9000000348_02293cztM0_level2_quad_clean.evt
Size (bytes)508,158,72087,166,080
Size484.6 MB 83.1 MB
Events in quadrant A3,604,964508,575
Events in quadrant B3,740,501517,564
Events in quadrant C3,958,609529,691
Events in quadrant D3,531,885517,483

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0167555
B0169133
C0173212
D0167395

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8150921.128834%
B81501341.644172%
C8150740.907975%
D8149360.441772%

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 8714 8150 0 0 0.00% 0.00%
B 8714 8151 5 5 0.06% 0.06%
C 8715 8151 3 3 0.03% 0.04%
D 8715 8152 2 2 0.02% 0.02%

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 12 194 10478 49.61 936 913 192.8
A 0 226 9973 46.99 936 913 192.8
A 12 133 3122 11.46 936 913 192.8
B 4 48 32548 173.15 947 922 182.6
B 15 85 29206 154.85 947 922 182.6
B 7 205 21144 110.71 947 922 182.6
C 5 234 264377 1215.16 924 927 216.8
C 8 112 33099 148.39 924 927 216.8
C 8 128 14783 63.91 924 927 216.8
D 1 20 40520 183.09 914 889 216.5
D 15 194 16956 74.23 914 889 216.5
D 9 66 12406 53.21 914 889 216.5

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