ASTROSAT CZTI

Data Quality Report

Orbit 11290

Creation date: 2024-06-27T16:10:50.293902
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_144T01_9000001652_11290cztM0_level2.evt modeM0/AS1A04_144T01_9000001652_11290cztM0_level2_quad_clean.evt
Size (bytes)572,129,28099,881,280
Size545.6 MB 95.3 MB
Events in quadrant A5,054,749643,035
Events in quadrant B3,914,424684,641
Events in quadrant C2,998,155670,435
Events in quadrant D4,933,366587,227

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0193293
B0158002
C0130832
D0188782

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62863215.106586%
B62863134.979319%
C6286220.349984%
D62865148.176901%

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 8946 6288 208 208 2.33% 3.31%
B 8946 6288 114 114 1.27% 1.81%
C 8946 6288 1 1 0.01% 0.02%
D 8946 6287 388 388 4.34% 6.17%

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 1826364 11902.24 760 748 153.4
A 14 238 207526 1348.11 760 748 153.4
A 8 15 27926 177.19 760 748 153.4
B 4 239 794243 5416.66 778 761 146.5
B 15 204 22843 150.74 778 761 146.5
B 12 111 16055 104.4 778 761 146.5
C 13 61 5522 26.82 768 773 177.1
C 10 95 2718 10.98 768 773 177.1
C 3 202 1801 5.81 768 773 177.1
D 10 253 777989 4531.94 720 700 171.5
D 12 157 358786 2087.8 720 700 171.5
D 1 52 340660 1982.12 720 700 171.5

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