ASTROSAT CZTI

Data Quality Report

Orbit 22561

Creation date: 2024-06-27T18:42:48.980798
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/AS1A07_148T05_9000003346_22561cztM0_level2.evt modeM0/AS1A07_148T05_9000003346_22561cztM0_level2_quad_clean.evt
Size (bytes)418,104,00082,995,840
Size398.7 MB 79.2 MB
Events in quadrant A2,960,054525,603
Events in quadrant B3,137,725536,929
Events in quadrant C3,012,985515,545
Events in quadrant D3,130,553503,081

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126111
B0130511
C0126831
D0133851

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6188430.694893%
B6189580.937147%
C6189641.034093%
D61891041.680401%

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 7193 6189 0 0 0.00% 0.00%
B 7194 6190 10 10 0.14% 0.16%
C 7194 6190 1 1 0.01% 0.02%
D 7194 6190 51 51 0.71% 0.82%

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 13 254 10111 60.71 766 752 154.2
A 0 226 6714 38.67 766 752 154.2
A 3 137 6532 37.49 766 752 154.2
B 15 33 135444 918.05 760 739 146.7
B 12 111 17548 114.56 760 739 146.7
B 0 190 15817 102.76 760 739 146.7
C 14 238 115697 661.76 738 744 173.7
C 10 22 15835 86.88 738 744 173.7
C 13 61 5051 24.79 738 744 173.7
D 1 52 291562 1596.95 746 725 182.1
D 2 234 24717 131.74 746 725 182.1
D 7 223 9685 49.2 746 725 182.1

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