ASTROSAT CZTI

Data Quality Report

Orbit 47889

Creation date: 2024-08-05T23:19:57.640673
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_053T01_9000006370_47889cztM0_level2.fits modeM0/AS1A13_053T01_9000006370_47889cztM0_level2_quad_clean.evt
Size (bytes)401,135,04085,726,080
Size382.6 MB 81.8 MB
Events in quadrant A5,240,855571,791
Events in quadrant B2,420,411582,558
Events in quadrant C2,382,402567,646
Events in quadrant D4,376,720487,959

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A019781116
B01131322
C01137818
D017026110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5498190.345580%
B5520230.416667%
C5525180.325792%
D54974468.113516%

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 5536 5527 2 2 0.04% 0.04%
B 5536 5533 14 14 0.25% 0.25%
C 5536 5533 13 13 0.23% 0.23%
D 5535 5524 441 441 7.97% 7.98%

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 2977512 24474.59 577 562 121.6
A 7 3 23636 189.7 577 562 121.6
A 13 248 10953 85.43 577 562 121.6
B 12 16 51629 445.45 577 558 114.7
B 7 221 42512 365.93 577 558 114.7
B 0 197 24016 204.6 577 558 114.7
C 14 254 102294 750.43 574 577 135.5
C 15 208 22121 158.94 574 577 135.5
C 12 2 9265 64.1 574 577 135.5
D 12 2 1921063 13793.14 555 536 139.2
D 2 249 131121 937.86 555 536 139.2
D 13 29 42998 304.96 555 536 139.2

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