ASTROSAT CZTI

Data Quality Report

Orbit 04229

Creation date: 2024-06-27T14:39:04.803096
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_240T01_9000000536_04229cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04229cztM0_level2_quad_clean.evt
Size (bytes)579,625,92072,175,680
Size552.8 MB 68.8 MB
Events in quadrant A5,101,235414,986
Events in quadrant B4,308,946439,283
Events in quadrant C3,142,630432,242
Events in quadrant D4,531,113415,419

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0198313
B0173482
C0142032
D0183402

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A693077511.183261%
B69302513.621934%
C6930490.707071%
D69301612.323232%

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 7690 6932 510 510 6.63% 7.36%
B 7690 6931 164 164 2.13% 2.37%
C 7690 6932 0 0 0.00% 0.00%
D 7690 6932 81 81 1.05% 1.17%

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 1518790 9326.31 793 776 162.8
A 15 234 306779 1880.01 793 776 162.8
A 12 247 181406 1109.75 793 776 162.8
B 3 0 977388 6154.55 826 809 158.7
B 15 204 57968 360.22 826 809 158.7
B 14 167 25674 156.7 826 809 158.7
C 9 144 31985 167.65 793 796 186.0
C 10 65 10740 53.45 793 796 186.0
C 13 61 6593 31.16 793 796 186.0
D 11 132 1142873 5945.07 788 765 192.1
D 15 217 156781 812.12 788 765 192.1
D 1 52 88361 455.97 788 765 192.1

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