ASTROSAT CZTI

Data Quality Report

Orbit 03080

Creation date: 2024-06-27T14:24:22.701215
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_237T03_9000000426_03080cztM0_level2.evt modeM0/AS1G05_237T03_9000000426_03080cztM0_level2_common_clean.evt
Size (bytes)674,104,320105,143,040
Size642.9 MB 100.3 MB
Events in quadrant A4,625,531652,822
Events in quadrant B5,400,450654,126
Events in quadrant C4,383,932655,092
Events in quadrant D5,420,676624,164

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020340503
B022310512
C0208031269
D023190531

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01804
B01804
C01804
D01804

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A86412913.367666%
B86393534.086121%
C86121481.718532%
D86314004.634457%

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 13354 8679 205 205 1.54% 2.36%
B 13354 8685 26 26 0.19% 0.30%
C 13354 8646 107 107 0.80% 1.24%
D 13354 8679 377 377 2.82% 4.34%

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 14 249 783117 4194.84 913 895 186.5
A 8 15 127827 680.7 913 895 186.5
A 0 31 86409 458.59 913 895 186.5
B 4 81 973105 5503.6 935 916 176.6
B 15 204 306996 1732.73 935 916 176.6
B 2 249 153641 864.58 935 916 176.6
C 14 223 420890 2028.06 888 896 207.1
C 0 219 241041 1159.61 888 896 207.1
C 6 80 142039 681.55 888 896 207.1
D 1 20 913864 4240.78 871 851 215.3
D 2 152 517794 2401.1 871 851 215.3
D 13 239 151490 699.69 871 851 215.3

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
Veto Counter