ASTROSAT CZTI

Data Quality Report

Orbit 45944

Creation date: 2024-06-27T23:18:00.898881
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_033T03_9000006144_45944cztM0_level2.fits modeM0/AS1A13_033T03_9000006144_45944cztM0_level2_quad_clean.evt
Size (bytes)466,464,96061,246,080
Size444.9 MB 58.4 MB
Events in quadrant A3,741,495439,358
Events in quadrant B7,723,073268,523
Events in quadrant C1,955,787443,275
Events in quadrant D3,512,785400,621

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136620
B0259340
C089820
D0134700

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0860
B0860
C0860
D0860

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A42961192.770019%
B4296223852.094972%
C429740.093088%
D4297992.303933%

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 4296 4296 94 94 2.19% 2.19%
B 4296 4296 1750 1750 40.74% 40.74%
C 4297 4297 4 4 0.09% 0.09%
D 4297 4297 84 84 1.95% 1.95%

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 1696539 17163.43 467 457 98.8
A 0 247 220523 2226.95 467 457 98.8
A 0 226 19191 189.58 467 457 98.8
B 3 112 5974911 74354.34 397 383 80.4
B 4 158 64807 801.77 397 383 80.4
B 5 172 48494 598.75 397 383 80.4
C 14 254 119483 1067.17 466 470 111.5
C 12 249 15605 135.71 466 470 111.5
C 12 2 3867 30.46 466 470 111.5
D 11 241 826949 6942.62 463 449 119.0
D 12 233 275263 2308.44 463 449 119.0
D 2 249 257056 2155.5 463 449 119.0

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