ASTROSAT CZTI

Data Quality Report

Orbit 45188

Creation date: 2024-06-27T23:10:24.201147
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_042T05_9000006052_45188cztM0_level2.fits modeM0/AS1A13_042T05_9000006052_45188cztM0_level2_quad_clean.evt
Size (bytes)303,684,48059,209,920
Size289.6 MB 56.5 MB
Events in quadrant A3,105,891382,108
Events in quadrant B2,573,067392,782
Events in quadrant C1,951,482411,810
Events in quadrant D3,317,432340,045

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119760
B0101290
C084020
D0124580

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A37603579.494681%
B376039710.558511%
C37601072.845745%
D376049413.138298%

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 3760 3760 12 12 0.32% 0.32%
B 3760 3760 84 84 2.23% 2.23%
C 3760 3760 2 2 0.05% 0.05%
D 3760 3760 246 246 6.54% 6.54%

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 1169129 11195.27 482 468 104.4
A 15 174 50759 481.77 482 468 104.4
A 0 243 12156 111.97 482 468 104.4
B 3 112 453768 4615.55 473 458 98.2
B 4 170 140483 1425.72 473 458 98.2
B 5 255 45058 454.11 473 458 98.2
C 1 3 22824 191.18 485 488 116.8
C 12 249 19689 164.35 485 488 116.8
C 3 233 13181 108.64 485 488 116.8
D 13 249 1087493 9050.1 464 450 120.1
D 1 47 152746 1267.93 464 450 120.1
D 5 222 112776 935.16 464 450 120.1

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