ASTROSAT CZTI

Data Quality Report

Orbit 11707

Creation date: 2024-06-27T16:17:10.162897
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/AS1A04_227T01_9000001724_11707cztM0_level2.evt modeM0/AS1A04_227T01_9000001724_11707cztM0_level2_quad_clean.evt
Size (bytes)644,863,68078,644,160
Size615.0 MB 75.0 MB
Events in quadrant A4,386,976491,938
Events in quadrant B4,217,248507,587
Events in quadrant C2,993,914509,591
Events in quadrant D7,502,349428,604

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0172833
B0167252
C0129732
D0265432

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63511702.676744%
B63511842.897182%
C635150.078728%
D6351122619.304047%

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 7587 6353 86 86 1.13% 1.35%
B 7587 6353 107 107 1.41% 1.68%
C 7587 6353 0 0 0.00% 0.00%
D 7587 6353 1253 1253 16.52% 19.72%

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 8 5 797988 5085.67 775 760 156.8
A 14 63 166041 1054.36 775 760 156.8
A 1 162 141061 895.01 775 760 156.8
B 4 239 425422 2878.46 782 765 147.5
B 10 245 369869 2501.9 782 765 147.5
B 3 64 148919 1004.23 782 765 147.5
C 13 61 5583 27.15 767 773 177.2
C 8 222 2468 9.57 767 773 177.2
C 12 4 2024 7.06 767 773 177.2
D 13 152 4048250 23899.65 703 684 169.4
D 10 119 299160 1762.41 703 684 169.4
D 7 80 139985 822.53 703 684 169.4

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