ASTROSAT CZTI

Data Quality Report

Orbit 11563

Creation date: 2024-06-27T16:14:56.279593
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_009T01_9000001696_11563cztM0_level2.evt modeM0/AS1G08_009T01_9000001696_11563cztM0_level2_quad_clean.evt
Size (bytes)555,050,88083,183,040
Size529.3 MB 79.3 MB
Events in quadrant A5,124,297513,473
Events in quadrant B4,298,713528,157
Events in quadrant C3,101,611531,383
Events in quadrant D3,858,256506,109

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0195143
B0168822
C0133082
D0155142

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63074557.214206%
B63073104.915174%
C6307651.030601%
D63081352.140140%

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 7533 6309 245 245 3.25% 3.88%
B 7533 6309 153 153 2.03% 2.43%
C 7533 6309 0 0 0.00% 0.00%
D 7534 6310 89 89 1.18% 1.41%

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 5 1777699 10915.58 808 795 162.8
A 1 162 58549 354.78 808 795 162.8
A 1 178 36642 220.21 808 795 162.8
B 4 239 693288 4518.45 815 798 153.3
B 15 204 248551 1616.57 815 798 153.3
B 11 51 89676 579.92 815 798 153.3
C 0 10 8751 43.4 793 800 183.2
C 13 61 5687 26.68 793 800 183.2
C 9 54 3207 13.14 793 800 183.2
D 1 52 384035 2026.27 795 776 189.1
D 13 137 162771 856.46 795 776 189.1
D 13 152 101368 531.82 795 776 189.1

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