ASTROSAT CZTI

Data Quality Report

Orbit 45849

Creation date: 2024-06-27T23:16:52.451826
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/AS1T05_186T01_9000006130_45849cztM0_level2.fits modeM0/AS1T05_186T01_9000006130_45849cztM0_level2_quad_clean.evt
Size (bytes)588,703,680107,864,640
Size561.4 MB 102.9 MB
Events in quadrant A5,967,241735,090
Events in quadrant B6,656,311710,152
Events in quadrant C3,060,660750,048
Events in quadrant D5,593,773607,642

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220832
B0243322
C0137052
D0212802

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66371902.862739%
B663785512.882326%
C6636380.572634%
D663675811.422544%

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 7742 6638 31 31 0.40% 0.47%
B 7742 6638 522 522 6.74% 7.86%
C 7741 6637 5 5 0.06% 0.08%
D 7741 6637 573 573 7.40% 8.63%

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 2985544 18527.05 768 751 161.1
A 13 254 9882 56.68 768 751 161.1
A 3 137 8587 48.64 768 751 161.1
B 3 112 3079002 20917.08 748 726 147.2
B 0 189 256787 1739.95 748 726 147.2
B 0 171 147631 998.23 748 726 147.2
C 3 233 33796 182.33 764 769 181.1
C 12 249 19474 103.26 764 769 181.1
C 12 2 15733 82.61 764 769 181.1
D 13 249 1214824 6704.14 711 690 181.1
D 1 52 296171 1631.57 711 690 181.1
D 2 249 293687 1617.86 711 690 181.1

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