ASTROSAT CZTI

Data Quality Report

Orbit 07046

Creation date: 2024-06-27T15:14:53.358133
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/AS1G06_029T01_9000000964_07046cztM0_level2.evt modeM0/AS1G06_029T01_9000000964_07046cztM0_level2_quad_clean.evt
Size (bytes)464,771,52078,626,880
Size443.2 MB 75.0 MB
Events in quadrant A3,100,659488,727
Events in quadrant B3,724,346492,906
Events in quadrant C3,285,630481,966
Events in quadrant D3,516,741457,053

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134832
B0154011
C0140081
D0145451

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6601230.348432%
B66011091.651265%
C6601470.712013%
D6601400.605969%

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 7756 6602 0 0 0.00% 0.00%
B 7756 6602 48 48 0.62% 0.73%
C 7756 6602 26 26 0.34% 0.39%
D 7756 6602 34 34 0.44% 0.51%

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 8 15 9044 50.67 801 786 163.0
A 0 226 7539 41.43 801 786 163.0
A 13 14 7450 40.89 801 786 163.0
B 3 220 294381 1925.2 809 794 152.5
B 7 202 128569 837.89 809 794 152.5
B 0 214 98906 643.37 809 794 152.5
C 9 68 231126 1268.77 780 788 181.5
C 13 61 6002 28.72 780 788 181.5
C 1 16 5501 25.96 780 788 181.5
D 8 195 442660 2323.6 771 749 190.2
D 12 233 130012 679.67 771 749 190.2
D 2 14 37214 191.73 771 749 190.2

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