ASTROSAT CZTI

Data Quality Report

Orbit 03483

Creation date: 2024-06-27T14:29:35.976976
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_211T01_9000000464_03483cztM0_level2.evt modeM0/AS1G05_211T01_9000000464_03483cztM0_level2_quad_clean.evt
Size (bytes)511,646,40072,290,880
Size487.9 MB 68.9 MB
Events in quadrant A3,889,220438,631
Events in quadrant B3,732,381438,649
Events in quadrant C4,327,779412,476
Events in quadrant D3,080,198421,125

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0164813
B0155112
C0176782
D0142522

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68682653.858474%
B68681351.965638%
C68684416.421083%
D6868901.310425%

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 7778 6868 87 87 1.12% 1.27%
B 7778 6868 26 26 0.33% 0.38%
C 7778 6868 286 286 3.68% 4.16%
D 7778 6868 10 10 0.13% 0.15%

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 0 50 677241 4176.59 786 768 162.0
A 0 118 86287 528.0 786 768 162.0
A 14 111 54887 334.13 786 768 162.0
B 15 204 281094 1787.39 800 780 156.8
B 2 249 143027 907.02 800 780 156.8
B 4 81 74176 468.0 800 780 156.8
C 7 220 1378360 7928.15 744 747 173.8
C 1 16 17250 94.97 744 747 173.8
C 6 80 9463 50.16 744 747 173.8
D 13 239 32267 170.56 767 743 184.8
D 6 17 31152 164.53 767 743 184.8
D 12 110 30907 163.2 767 743 184.8

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