ASTROSAT CZTI

Data Quality Report

Orbit 48379

Creation date: 2024-09-08T06:21:54.830806
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/AS1A13_029T01_9000006426_48379cztM0_level2.fits modeM0/AS1A13_029T01_9000006426_48379cztM0_level2_quad_clean.evt
Size (bytes)716,644,800121,593,600
Size683.4 MB 116.0 MB
Events in quadrant A8,410,417831,444
Events in quadrant B8,555,657672,633
Events in quadrant C3,787,037847,874
Events in quadrant D5,143,142762,376

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0307460
B0312554
C0174110
D0212260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A81564205.149583%
B8155214326.278357%
C8155750.919681%
D81553083.776824%

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 8156 8156 10 10 0.12% 0.12%
B 8155 8155 1356 1356 16.63% 16.63%
C 8155 8155 19 19 0.23% 0.23%
D 8155 8155 235 235 2.88% 2.88%

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 4690646 23990.83 927 905 195.5
A 13 248 119774 608.09 927 905 195.5
A 13 254 16113 77.8 927 905 195.5
B 12 16 4793727 29685.16 805 779 161.5
B 4 21 367956 2274.11 805 779 161.5
B 5 255 127792 786.66 805 779 161.5
C 1 3 126192 576.03 917 921 217.5
C 14 67 37404 167.76 917 921 217.5
C 12 249 26195 116.22 917 921 217.5
D 2 165 975312 4151.39 915 882 234.7
D 12 33 317808 1350.21 915 882 234.7
D 2 249 171267 725.9 915 882 234.7

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