ASTROSAT CZTI

Data Quality Report

Orbit 40611

Creation date: 2024-06-27T22:18:12.738955
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/AS1A12_054T02_9000005550_40611cztM0_level2.fits modeM0/AS1A12_054T02_9000005550_40611cztM0_level2_quad_clean.evt
Size (bytes)403,758,72094,613,760
Size385.1 MB 90.2 MB
Events in quadrant A3,350,869652,902
Events in quadrant B3,550,363658,527
Events in quadrant C3,210,471627,079
Events in quadrant D4,365,530505,306

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137653
B0144422
C0133912
D0170382

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6016170.282580%
B6016911.512633%
C6016570.947473%
D6016107717.902261%

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 7328 6017 6 6 0.08% 0.10%
B 7328 6017 62 62 0.85% 1.03%
C 7328 6017 57 57 0.78% 0.95%
D 7328 6017 231 231 3.15% 3.84%

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 10 83 562192 4217.36 648 634 133.2
A 15 237 143964 1076.42 648 634 133.2
A 6 10 113506 847.68 648 634 133.2
B 0 229 394152 3180.99 641 623 123.7
B 0 190 265972 2144.88 641 623 123.7
B 3 112 153683 1237.22 641 623 123.7
C 14 254 378520 2567.2 631 636 147.2
C 15 214 261376 1771.37 631 636 147.2
C 12 175 34821 232.24 631 636 147.2
D 12 227 817837 5608.47 586 569 145.7
D 2 249 429257 2941.85 586 569 145.7
D 12 191 253775 1737.62 586 569 145.7

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