ASTROSAT CZTI

Data Quality Report

Orbit 38106

Creation date: 2024-06-27T21:48:28.314918
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/AS1A11_047T09_9000005362_38106cztM0_level2.fits modeM0/AS1A11_047T09_9000005362_38106cztM0_level2_quad_clean.evt
Size (bytes)427,443,84079,248,960
Size407.6 MB 75.6 MB
Events in quadrant A2,714,687560,195
Events in quadrant B2,684,376559,377
Events in quadrant C3,660,755508,027
Events in quadrant D6,378,065425,005

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01098716
B0111747
C0139355
D02250463

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B060
C060
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4946130.262839%
B49521232.483845%
C49533767.591359%
D494494319.073625%

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 4956 4953 4 4 0.08% 0.08%
B 4956 4955 92 92 1.86% 1.86%
C 4956 4955 342 342 6.90% 6.90%
D 4956 4952 924 924 18.64% 18.66%

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 286944 2476.84 564 553 115.6
A 12 189 110349 949.57 564 553 115.6
A 12 16 46624 398.44 564 553 115.6
B 5 172 272466 2500.17 557 542 108.8
B 0 229 178543 1636.61 557 542 108.8
B 12 111 13792 121.83 557 542 108.8
C 1 23 1167514 9308.92 529 531 125.4
C 15 214 197735 1573.08 529 531 125.4
C 14 254 155199 1233.77 529 531 125.4
D 13 138 1786450 14135.24 506 491 126.3
D 12 235 1048658 8295.88 506 491 126.3
D 1 20 981425 7763.75 506 491 126.3

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