ASTROSAT CZTI

Data Quality Report

Orbit 44617

Creation date: 2024-06-27T23:04:33.721356
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/AS1A13_009T03_9000006006_44617cztM0_level2.fits modeM0/AS1A13_009T03_9000006006_44617cztM0_level2_quad_clean.evt
Size (bytes)472,970,880112,057,920
Size451.1 MB 106.9 MB
Events in quadrant A5,311,662757,987
Events in quadrant B3,317,308779,130
Events in quadrant C3,176,466737,531
Events in quadrant D5,189,752657,267

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210232
B0142662
C0139542
D0198912

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66091051.588743%
B6609951.437434%
C6609280.423665%
D66093405.144500%

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 7804 6610 16 16 0.21% 0.24%
B 7803 6609 47 47 0.60% 0.71%
C 7803 6608 11 11 0.14% 0.17%
D 7804 6609 323 323 4.14% 4.89%

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 10 83 1941125 12425.03 755 741 156.2
A 15 223 414132 2647.1 755 741 156.2
A 13 248 29575 184.64 755 741 156.2
B 5 172 299920 2024.48 756 735 147.8
B 12 111 18964 123.35 756 735 147.8
B 11 111 17138 110.99 756 735 147.8
C 12 2 105079 594.81 744 751 175.4
C 3 233 62817 353.86 744 751 175.4
C 14 254 57234 322.03 744 751 175.4
D 1 52 1013898 5438.34 728 706 186.3
D 13 153 795585 4266.54 728 706 186.3
D 13 249 324085 1735.75 728 706 186.3

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter