ASTROSAT CZTI

Data Quality Report

Orbit 06320

Creation date: 2024-06-27T15:05:34.286635
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/AS1A02_070T01_9000000832_06320cztM0_level2.evt modeM0/AS1A02_070T01_9000000832_06320cztM0_level2_quad_clean.evt
Size (bytes)491,503,68062,740,800
Size468.7 MB 59.8 MB
Events in quadrant A3,131,601365,250
Events in quadrant B4,357,160343,961
Events in quadrant C3,096,219374,171
Events in quadrant D3,849,040352,703

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137333
B0173292
C0137982
D0159962

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6645590.887886%
B66455167.765237%
C6645470.707299%
D66451522.287434%

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 7620 6646 1 1 0.01% 0.02%
B 7620 6646 325 325 4.27% 4.89%
C 7620 6646 7 7 0.09% 0.11%
D 7620 6646 93 93 1.22% 1.40%

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 15 84853 518.75 782 763 162.1
A 13 251 31003 186.55 782 763 162.1
A 12 194 7347 40.62 782 763 162.1
B 3 64 1335578 8889.73 773 756 150.2
B 4 81 22792 146.76 773 756 150.2
B 12 111 15305 96.89 773 756 150.2
C 4 254 81521 450.71 769 773 179.2
C 9 54 12973 68.1 769 773 179.2
C 13 61 6081 29.63 769 773 179.2
D 12 220 463533 2484.55 756 733 186.3
D 4 95 261350 1399.13 756 733 186.3
D 12 221 162058 866.08 756 733 186.3

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