ASTROSAT CZTI

Data Quality Report

Orbit 07540

Creation date: 2024-06-27T15:21:00.190048
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/AS1G06_076T01_9000001038_07540cztM0_level2.evt modeM0/AS1G06_076T01_9000001038_07540cztM0_level2_quad_clean.evt
Size (bytes)463,795,20069,304,320
Size442.3 MB 66.1 MB
Events in quadrant A3,367,912414,951
Events in quadrant B3,437,677422,136
Events in quadrant C3,274,532406,676
Events in quadrant D3,514,929392,026

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142323
B0143532
C0140362
D0148322

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66391101.656876%
B66391191.792439%
C6639881.325501%
D66391352.033439%

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 7909 6639 0 0 0.00% 0.00%
B 7909 6639 2 2 0.03% 0.03%
C 7909 6639 0 0 0.00% 0.00%
D 7909 6639 28 28 0.35% 0.42%

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 14 12071 64.68 869 853 173.4
A 0 226 8404 43.54 869 853 173.4
A 12 194 7901 40.64 869 853 173.4
B 0 213 28900 175.31 868 850 160.0
B 0 214 21793 130.89 868 850 160.0
B 12 111 15795 93.41 868 850 160.0
C 8 229 7570 35.32 836 839 190.6
C 13 61 6521 29.82 836 839 190.6
C 12 4 2785 10.21 836 839 190.6
D 2 14 87627 436.77 836 812 198.8
D 2 152 86049 428.83 836 812 198.8
D 2 136 68494 340.51 836 812 198.8

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