ASTROSAT CZTI

Data Quality Report

Orbit 48128

Creation date: 2024-08-22T09:57:54.737770
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_223T01_9000006402_48128cztM0_level2.fits modeM0/AS1T05_223T01_9000006402_48128cztM0_level2_quad_clean.evt
Size (bytes)411,232,32087,168,960
Size392.2 MB 83.1 MB
Events in quadrant A7,182,505735,067
Events in quadrant B1,153,95744,860
Events in quadrant C2,921,446734,345
Events in quadrant D3,453,756669,575

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0257444
B070272
C0133602
D0149882

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64744907.568736%
B64746474100.000000%
C6474540.834106%
D64741912.950263%

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 7643 6473 186 186 2.43% 2.87%
B 7643 6473 6 6 0.08% 0.09%
C 7643 6473 11 11 0.14% 0.17%
D 7643 6473 130 130 1.70% 2.01%

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 4207556 28578.57 721 707 147.2
A 13 248 92956 626.68 721 707 147.2
A 7 3 81663 549.96 721 707 147.2
B 2 177 891634 79024.51 45 44 11.3
B 4 171 56244 4981.19 45 44 11.3
B 4 21 10254 904.95 45 44 11.3
C 14 254 69744 413.22 717 719 167.0
C 1 16 28517 166.42 717 719 167.0
C 12 250 19687 113.55 717 719 167.0
D 2 37 357196 2015.25 712 687 176.9
D 2 165 184538 1039.26 712 687 176.9
D 13 23 55507 309.88 712 687 176.9

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