ASTROSAT CZTI

Data Quality Report

Orbit 46033

Creation date: 2024-06-27T23:18:58.261308
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/AS1A13_033T02_9000006154_46033cztM0_level2.fits modeM0/AS1A13_033T02_9000006154_46033cztM0_level2_quad_clean.evt
Size (bytes)418,743,36064,212,480
Size399.3 MB 61.2 MB
Events in quadrant A3,611,243448,744
Events in quadrant B6,285,789365,395
Events in quadrant C2,058,376443,412
Events in quadrant D3,209,725383,021

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0860
B0860
C0860
D0860

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131710
B0217130
C092700
D0124800

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4312190.440631%
B4313124728.912590%
C4313410.950614%
D43133287.604915%

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 4312 4312 3 3 0.07% 0.07%
B 4313 4313 940 940 21.79% 21.79%
C 4313 4313 41 41 0.95% 0.95%
D 4313 4313 303 303 7.03% 7.03%

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 1774172 17855.78 469 459 99.3
A 13 248 17426 170.81 469 459 99.3
A 13 254 8011 76.03 469 459 99.3
B 3 112 4395521 50745.35 431 419 86.6
B 0 183 110242 1268.0 431 419 86.6
B 4 171 21332 241.46 431 419 86.6
C 14 254 179125 1617.63 462 464 110.4
C 0 207 67165 603.92 462 464 110.4
C 1 3 6976 58.96 462 464 110.4
D 2 249 562054 4844.01 449 434 115.9
D 1 52 303108 2610.58 449 434 115.9
D 13 249 247360 2129.75 449 434 115.9

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