ASTROSAT CZTI

Data Quality Report

Orbit 05995

Creation date: 2024-06-27T15:01:36.495250
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_086T01_9000000774_05995cztM0_level2.evt modeM0/AS1G06_086T01_9000000774_05995cztM0_level2_quad_clean.evt
Size (bytes)434,773,440121,766,400
Size414.6 MB 116.1 MB
Events in quadrant A3,260,627803,114
Events in quadrant B3,201,142824,485
Events in quadrant C2,995,248807,629
Events in quadrant D3,236,455767,886

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149104
B0144971
C0141991
D0151021

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69541341.926949%
B69551271.826024%
C6955590.848311%
D69551672.401150%

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 7515 6956 36 36 0.48% 0.52%
B 7515 6956 4 4 0.05% 0.06%
C 7515 6956 0 0 0.00% 0.00%
D 7515 6956 131 131 1.74% 1.88%

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 4 2 152481 965.6 769 749 157.1
A 13 251 112711 712.51 769 749 157.1
A 7 16 28365 175.74 769 749 157.1
B 15 204 48365 317.71 783 762 149.8
B 0 214 42878 281.09 783 762 149.8
B 15 85 41488 271.81 783 762 149.8
C 12 4 21919 121.68 754 756 173.9
C 9 54 9952 52.87 754 756 173.9
C 1 16 8338 43.59 754 756 173.9
D 5 239 275441 1512.83 743 718 181.6
D 1 239 34268 184.75 743 718 181.6
D 2 14 24607 131.55 743 718 181.6

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