ASTROSAT CZTI

Data Quality Report

Orbit 14345

Creation date: 2024-06-27T16:53:49.308747
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/AS1G08_078T01_9000002110_14345cztM0_level2.evt modeM0/AS1G08_078T01_9000002110_14345cztM0_level2_quad_clean.evt
Size (bytes)482,149,44078,505,920
Size459.8 MB 74.9 MB
Events in quadrant A3,188,535494,322
Events in quadrant B3,359,461497,478
Events in quadrant C3,391,722482,690
Events in quadrant D4,235,218463,431

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131222
B0136761
C0134441
D0166561

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6291691.096805%
B62911111.764425%
C6291410.651725%
D62911792.845335%

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 7502 6292 0 0 0.00% 0.00%
B 7502 6292 20 20 0.27% 0.32%
C 7502 6293 2 2 0.03% 0.03%
D 7502 6293 110 110 1.47% 1.75%

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 12 189 57102 343.74 811 794 163.8
A 8 15 11489 65.29 811 794 163.8
A 0 226 7275 39.56 811 794 163.8
B 0 229 136016 879.42 797 777 153.8
B 0 245 48892 312.88 797 777 153.8
B 0 214 24515 154.36 797 777 153.8
C 3 233 390717 2194.2 767 772 177.7
C 14 234 11837 62.26 767 772 177.7
C 13 61 5477 26.47 767 772 177.7
D 12 110 523434 2838.47 771 755 184.1
D 2 120 205764 1113.32 771 755 184.1
D 10 199 167754 906.91 771 755 184.1

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