ASTROSAT CZTI

Data Quality Report

Orbit 18413

Creation date: 2024-06-27T17:49:27.329378
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/AS1A05_227T06_9000002730_18413cztM0_level2.evt modeM0/AS1A05_227T06_9000002730_18413cztM0_level2_quad_clean.evt
Size (bytes)498,960,00066,432,960
Size475.8 MB 63.4 MB
Events in quadrant A3,209,008400,960
Events in quadrant B3,952,633402,343
Events in quadrant C3,203,752385,525
Events in quadrant D4,306,702371,174

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134622
B0156932
C0134102
D0170082

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6468570.881262%
B64671642.535952%
C6467640.989640%
D64671452.242152%

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 7633 6469 2 2 0.03% 0.03%
B 7632 6468 41 41 0.54% 0.63%
C 7632 6468 0 0 0.00% 0.00%
D 7632 6468 102 102 1.34% 1.58%

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 15 174 26576 156.56 824 809 164.6
A 4 2 15591 89.81 824 809 164.6
A 0 226 7211 38.9 824 809 164.6
B 10 245 518005 3326.19 825 806 155.5
B 7 220 125253 800.34 825 806 155.5
B 0 228 38413 241.86 825 806 155.5
C 14 238 123436 665.74 787 791 184.2
C 3 233 8366 41.12 787 791 184.2
C 13 61 5569 25.94 787 791 184.2
D 1 52 533670 2794.62 784 762 190.7
D 8 230 392912 2056.47 784 762 190.7
D 7 238 222369 1162.13 784 762 190.7

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