ASTROSAT CZTI

Data Quality Report

Orbit 47110

Creation date: 2024-06-27T23:31:50.418169
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/AS1C09_003T01_9000006298_47110cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47110cztM0_level2_quad_clean.evt
Size (bytes)427,429,44098,858,880
Size407.6 MB 94.3 MB
Events in quadrant A5,864,850658,501
Events in quadrant B3,297,527674,793
Events in quadrant C2,729,502642,968
Events in quadrant D3,456,959591,751

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0213591
B0140601
C0128301
D0148092

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60941362.231703%
B60951171.919606%
C6095430.705496%
D60941061.739416%

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 7214 6095 41 41 0.57% 0.67%
B 7215 6096 75 75 1.04% 1.23%
C 7215 6096 34 34 0.47% 0.56%
D 7214 6095 87 87 1.21% 1.43%

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 3272755 24099.51 653 639 135.8
A 7 3 26321 189.15 653 639 135.8
A 9 191 19860 141.56 653 639 135.8
B 0 190 262385 2046.77 653 635 127.9
B 0 200 194246 1513.95 653 635 127.9
B 5 32 117189 911.4 653 635 127.9
C 14 254 127342 849.44 638 641 149.2
C 12 16 105552 703.35 638 641 149.2
C 1 3 4715 27.31 638 641 149.2
D 2 249 342139 2137.49 635 614 159.8
D 1 47 240784 1503.14 635 614 159.8
D 8 48 127975 797.11 635 614 159.8

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