ASTROSAT CZTI

Data Quality Report

Orbit 44305

Creation date: 2024-06-27T23:01:52.980146
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_004T13_9000005988_44305cztM0_level2.fits modeM0/AS1A13_004T13_9000005988_44305cztM0_level2_quad_clean.evt
Size (bytes)660,444,480127,218,240
Size629.8 MB 121.3 MB
Events in quadrant A5,507,118892,141
Events in quadrant B5,539,454835,990
Events in quadrant C4,507,819870,530
Events in quadrant D8,257,435683,262

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0227372
B0221442
C0191712
D0303542

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8197951.158961%
B81986908.416687%
C8198961.171017%
D8198142717.406685%

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 8307 8199 5 5 0.06% 0.06%
B 8308 8200 432 432 5.20% 5.27%
C 8308 8200 57 57 0.69% 0.70%
D 8308 8200 1181 1181 14.22% 14.40%

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 1830107 9334.27 935 910 196.0
A 15 223 24025 117.95 935 910 196.0
A 7 3 18714 90.85 935 910 196.0
B 5 172 1205755 6877.77 889 861 175.2
B 0 219 176331 1001.62 889 861 175.2
B 5 255 120147 680.91 889 861 175.2
C 14 254 354374 1624.62 921 926 217.6
C 15 208 344223 1577.96 921 926 217.6
C 9 54 72553 329.23 921 926 217.6
D 1 52 2052661 9435.29 854 827 217.5
D 13 249 1664606 7650.84 854 827 217.5
D 13 171 240687 1102.99 854 827 217.5

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