ASTROSAT CZTI

Data Quality Report

Orbit 05117

Creation date: 2024-06-27T14:51:31.980572
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_230T05_9000000648_05117cztM0_level2.evt modeM0/AS1G05_230T05_9000000648_05117cztM0_level2_quad_clean.evt
Size (bytes)679,504,32095,284,800
Size648.0 MB 90.9 MB
Events in quadrant A3,508,008606,543
Events in quadrant B5,080,838607,344
Events in quadrant C3,586,588606,782
Events in quadrant D7,867,051514,116

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01666
C01662
D01662

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016553369
B0215331090
C016485368
D0304331704

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7951360.452773%
B78624105.214958%
C7951110.138347%
D7823130816.719928%

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 8553 8124 3 3 0.04% 0.04%
B 8553 8107 236 236 2.76% 2.91%
C 8553 8127 0 0 0.00% 0.00%
D 8553 8084 1098 1098 12.84% 13.58%

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 22171 114.34 902 881 186.2
A 13 14 11462 56.82 902 881 186.2
A 12 194 9042 43.83 902 881 186.2
B 8 3 1082188 6308.08 890 868 171.4
B 10 16 196062 1138.7 890 868 171.4
B 4 48 175915 1021.17 890 868 171.4
C 10 34 103052 494.56 886 891 206.6
C 12 4 8238 35.57 886 891 206.6
C 13 61 7123 30.17 886 891 206.6
D 13 235 3078452 15553.39 803 777 197.9
D 2 33 643703 3249.1 803 777 197.9
D 1 239 314342 1584.64 803 777 197.9

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