ASTROSAT CZTI

Data Quality Report

Orbit 45885

Creation date: 2024-06-27T23:17:18.977954
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/AS1T05_188T01_9000006138_45885cztM0_level2.fits modeM0/AS1T05_188T01_9000006138_45885cztM0_level2_quad_clean.evt
Size (bytes)510,675,84096,033,600
Size487.0 MB 91.6 MB
Events in quadrant A5,443,954644,462
Events in quadrant B6,226,928618,655
Events in quadrant C2,755,722645,766
Events in quadrant D4,007,583576,167

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0198140
B0226561
C0127710
D0160420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60541512.494219%
B605377412.787048%
C6053150.247811%
D60531792.957211%

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 6054 6054 40 40 0.66% 0.66%
B 6053 6053 507 507 8.38% 8.38%
C 6053 6053 4 4 0.07% 0.07%
D 6052 6052 123 123 2.03% 2.03%

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 2481773 17127.93 690 673 144.9
A 0 247 248057 1707.78 690 673 144.9
A 0 226 19965 133.18 690 673 144.9
B 3 112 3313448 24746.3 666 647 133.9
B 4 171 130540 970.28 666 647 133.9
B 5 172 50789 374.55 666 647 133.9
C 12 249 57144 349.38 679 681 161.6
C 12 2 37221 226.1 679 681 161.6
C 13 61 4508 23.68 679 681 161.6
D 1 52 506965 3000.75 669 647 168.7
D 5 171 190624 1125.92 669 647 168.7
D 11 241 148976 879.09 669 647 168.7

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