ASTROSAT CZTI

Data Quality Report

Orbit 09114

Creation date: 2024-06-27T15:41:28.323364
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_09114cztM0_level2.evt modeM0/AS1A03_105T01_9000001268_09114cztM0_level2_quad_clean.evt
Size (bytes)444,081,60092,396,160
Size423.5 MB 88.1 MB
Events in quadrant A3,688,927588,797
Events in quadrant B3,111,104599,626
Events in quadrant C3,079,175588,116
Events in quadrant D3,130,728570,951

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153533
B0134962
C0136062
D0137384

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6458370.572933%
B6458350.541963%
C6458540.836172%
D6457330.511073%

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 7573 6459 4 4 0.05% 0.06%
B 7573 6459 3 3 0.04% 0.05%
C 7573 6459 44 44 0.58% 0.68%
D 7573 6459 15 15 0.20% 0.23%

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 650740 4129.27 773 758 157.4
A 1 162 42572 265.64 773 758 157.4
A 15 174 7981 45.89 773 758 157.4
B 0 214 72862 480.1 778 759 150.2
B 12 111 16969 107.93 778 759 150.2
B 11 111 13801 86.84 778 759 150.2
C 14 234 125628 706.22 756 760 176.8
C 13 61 5448 26.51 756 760 176.8
C 14 67 2230 8.31 756 760 176.8
D 1 52 160752 858.5 748 728 186.4
D 2 14 48393 255.72 748 728 186.4
D 2 234 21655 112.27 748 728 186.4

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