ASTROSAT CZTI

Data Quality Report

Orbit 09631

Creation date: 2024-06-27T15:49:05.140424
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/AS1G07_028T01_9000001370_09631cztM0_level2.evt modeM0/AS1G07_028T01_9000001370_09631cztM0_level2_quad_clean.evt
Size (bytes)433,615,68090,054,720
Size413.5 MB 85.9 MB
Events in quadrant A3,008,894576,780
Events in quadrant B3,074,356585,142
Events in quadrant C3,131,697576,933
Events in quadrant D3,490,743551,890

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B051
C050
D051

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0168673681
B0168713570
C0170313434
D0186574225

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015834
B015824
C015836
D015725

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61992644.258751%
B62463255.203330%
C63162884.559848%
D61793064.952258%

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 8267 7167 0 0 0.00% 0.00%
B 8268 7163 0 0 0.00% 0.00%
C 8268 7202 0 0 0.00% 0.00%
D 8268 7107 28 28 0.34% 0.39%

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 14 111 15876 94.24 778 761 160.4
A 0 226 7035 39.12 778 761 160.4
A 12 194 6129 33.47 778 761 160.4
B 12 111 18295 113.77 785 762 154.1
B 0 229 15125 93.2 785 762 154.1
B 11 111 14937 91.98 785 762 154.1
C 4 254 28560 149.99 784 788 185.2
C 14 234 20441 106.14 784 788 185.2
C 8 128 11908 60.06 784 788 185.2
D 1 52 281209 1500.71 764 745 186.9
D 7 46 112786 599.51 764 745 186.9
D 8 195 110616 587.9 764 745 186.9

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