ASTROSAT CZTI

Data Quality Report

Orbit 04310

Creation date: 2024-06-27T14:40:12.691844
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_219T01_9000000540_04310cztM0_level2.evt modeM0/AS1G05_219T01_9000000540_04310cztM0_level2_quad_clean.evt
Size (bytes)460,687,68069,756,480
Size439.3 MB 66.5 MB
Events in quadrant A3,347,612418,899
Events in quadrant B3,842,742418,732
Events in quadrant C3,023,478411,996
Events in quadrant D3,287,234400,232

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143323
B0154852
C0135932
D0143492

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66261392.097797%
B66262303.471174%
C6626630.950800%
D6626801.207365%

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 7696 6626 38 38 0.49% 0.57%
B 7696 6626 114 114 1.48% 1.72%
C 7696 6626 0 0 0.00% 0.00%
D 7696 6626 8 8 0.10% 0.12%

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 15 234 224621 1364.11 800 784 164.1
A 13 251 23469 138.25 800 784 164.1
A 8 15 10757 60.78 800 784 164.1
B 5 184 417151 2730.29 796 777 152.5
B 3 0 149372 974.38 796 777 152.5
B 15 204 64250 416.21 796 777 152.5
C 10 65 8259 41.37 770 774 180.9
C 13 61 6489 31.58 770 774 180.9
C 9 247 5572 26.52 770 774 180.9
D 13 239 120944 649.64 772 753 185.0
D 2 136 57208 305.14 772 753 185.0
D 12 233 43848 232.93 772 753 185.0

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