ASTROSAT CZTI

Data Quality Report

Orbit 03599

Creation date: 2024-06-27T14:31:27.614506
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/AS1G05_246T04_9000000472_03599cztM0_level2.evt modeM0/AS1G05_246T04_9000000472_03599cztM0_level2_quad_clean.evt
Size (bytes)559,972,80062,418,240
Size534.0 MB 59.5 MB
Events in quadrant A4,153,764362,543
Events in quadrant B3,483,546366,591
Events in quadrant C5,777,553329,071
Events in quadrant D3,082,207356,657

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0169333
B0146012
C0216382
D0142562

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68171632.391081%
B68171061.554936%
C681777911.427314%
D6817881.290890%

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 7727 6818 15 15 0.19% 0.22%
B 7727 6818 1 1 0.01% 0.01%
C 7727 6818 572 572 7.40% 8.39%
D 7727 6818 12 12 0.16% 0.18%

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 15 964695 5911.02 791 774 163.1
A 13 164 80409 488.34 791 774 163.1
A 3 1 29203 174.33 791 774 163.1
B 15 204 312573 1976.62 805 783 157.7
B 0 182 18964 115.26 805 783 157.7
B 3 226 13443 80.26 805 783 157.7
C 9 247 2041732 11889.83 730 732 171.7
C 2 53 867562 5049.71 730 732 171.7
C 13 61 6236 32.06 730 732 171.7
D 13 223 56737 298.29 769 745 187.7
D 14 34 46931 246.05 769 745 187.7
D 13 239 36948 192.87 769 745 187.7

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
Veto Counter