ASTROSAT CZTI

Data Quality Report

Orbit 05219

Creation date: 2024-06-27T14:52:41.920974
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/AS1G05_141T01_9000000664_05219cztM0_level2.evt modeM0/AS1G05_141T01_9000000664_05219cztM0_level2_quad_clean.evt
Size (bytes)1,564,971,840189,365,760
Size1.5 GB 180.6 MB
Events in quadrant A8,246,4631,195,988
Events in quadrant B8,938,4021,187,827
Events in quadrant C7,952,5681,203,826
Events in quadrant D21,045,244907,895

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0374114
B0387153
C0366253
D0753363

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03640
B03640
C03640
D03640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A179591760.980010%
B179592561.425469%
C17959330.183752%
D17959503128.013809%

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 20014 17962 52 52 0.26% 0.29%
B 20014 17962 145 145 0.72% 0.81%
C 20014 17962 3 3 0.01% 0.02%
D 20014 17962 4223 4223 21.10% 23.51%

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 50 385308 918.61 2037 1993 417.3
A 12 194 20734 44.91 2037 1993 417.3
A 0 226 20255 43.76 2037 1993 417.3
B 5 172 342272 864.75 2051 2005 393.5
B 4 80 144641 362.49 2051 2005 393.5
B 15 204 123295 308.24 2051 2005 393.5
C 1 16 200917 436.25 1971 1977 456.0
C 12 4 25636 51.88 1971 1977 456.0
C 13 61 16278 31.36 1971 1977 456.0
D 11 145 13696797 33415.93 1674 1617 409.8
D 2 33 346517 841.55 1674 1617 409.8
D 12 233 251131 608.81 1674 1617 409.8

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