ASTROSAT CZTI

Data Quality Report

Orbit 04736

Creation date: 2024-06-27T14:46:14.079366
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_192T01_9000000594_04736cztM0_level2.evt modeM0/AS1G05_192T01_9000000594_04736cztM0_level2_quad_clean.evt
Size (bytes)605,606,40082,932,480
Size577.6 MB 79.1 MB
Events in quadrant A3,086,947522,474
Events in quadrant B3,347,515529,039
Events in quadrant C6,782,034471,793
Events in quadrant D4,645,762495,649

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143803
B0148792
C0251142
D0188692

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7061420.594817%
B7061721.019686%
C7061100514.233111%
D70613504.956805%

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 7661 7063 0 0 0.00% 0.00%
B 7661 7063 6 6 0.08% 0.08%
C 7661 7063 790 790 10.31% 11.19%
D 7661 7063 354 354 4.62% 5.01%

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 7 16 10556 60.76 794 776 161.0
A 12 194 7844 43.91 794 776 161.0
A 0 226 7823 43.78 794 776 161.0
B 14 167 175290 1108.48 810 789 157.4
B 4 80 24025 147.6 810 789 157.4
B 12 111 14569 87.53 810 789 157.4
C 14 48 3916029 22954.44 731 736 170.6
C 12 4 11171 61.18 731 736 170.6
C 13 61 5991 30.81 731 736 170.6
D 13 53 1336813 7301.19 757 734 183.0
D 13 235 171055 930.74 757 734 183.0
D 2 14 89758 486.48 757 734 183.0

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