ASTROSAT CZTI

Data Quality Report

Orbit 03463

Creation date: 2024-06-27T14:29:23.688000
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_209T01_9000000458_03463cztM0_level2.evt modeM0/AS1G05_209T01_9000000458_03463cztM0_level2_quad_clean.evt
Size (bytes)533,805,120127,339,200
Size509.1 MB 121.4 MB
Events in quadrant A3,777,294819,840
Events in quadrant B4,675,246818,976
Events in quadrant C3,589,830841,807
Events in quadrant D3,571,806811,195

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0173714
B0196073
C0168793
D0171343

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A81301011.242312%
B81301471.808118%
C8130390.479705%
D8130440.541205%

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 8930 8133 41 41 0.46% 0.50%
B 8930 8134 15 15 0.17% 0.18%
C 8930 8134 1 1 0.01% 0.01%
D 8930 8134 22 22 0.25% 0.27%

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 0 118 170644 913.83 902 877 185.8
A 0 50 40842 215.13 902 877 185.8
A 8 15 39162 206.08 902 877 185.8
B 15 204 944680 5386.52 919 895 175.2
B 4 81 45742 255.96 919 895 175.2
B 0 219 20441 111.56 919 895 175.2
C 1 192 50439 240.33 892 896 206.1
C 14 223 10102 44.66 892 896 206.1
C 9 144 7832 33.65 892 896 206.1
D 5 233 81769 379.03 882 855 213.5
D 13 223 47742 219.63 882 855 213.5
D 2 37 42820 196.58 882 855 213.5

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