ASTROSAT CZTI

Data Quality Report

Orbit 10061

Creation date: 2024-06-27T15:54:29.960506
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_084T01_9000001440_10061cztM0_level2.evt modeM0/AS1A03_084T01_9000001440_10061cztM0_level2_quad_clean.evt
Size (bytes)511,430,40084,522,240
Size487.7 MB 80.6 MB
Events in quadrant A3,233,757539,544
Events in quadrant B3,092,066553,094
Events in quadrant C2,841,747535,850
Events in quadrant D5,894,948492,326

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01390925
B01339415
C01292723
D02189162

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6283240.381983%
B6288310.493003%
C628470.111394%
D62814296.830123%

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 7459 6295 6 6 0.08% 0.10%
B 7459 6295 13 13 0.17% 0.21%
C 7459 6295 1 1 0.01% 0.02%
D 7459 6294 450 450 6.03% 7.15%

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 0 8 245176 1603.31 748 732 152.5
A 15 239 63052 408.76 748 732 152.5
A 13 251 28784 183.99 748 732 152.5
B 4 239 76621 528.67 755 739 143.5
B 0 214 22923 154.56 755 739 143.5
B 4 81 19233 128.85 755 739 143.5
C 14 234 13479 75.7 721 724 168.5
C 14 67 10905 60.43 721 724 168.5
C 13 61 5455 28.08 721 724 168.5
D 4 95 1975194 10469.7 690 675 188.6
D 1 52 976178 5172.51 690 675 188.6
D 8 195 92841 488.7 690 675 188.6

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