ASTROSAT CZTI

Data Quality Report

Orbit 43150

Creation date: 2024-06-27T22:48:39.802369
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/AS1C07_001T10_9000005856_43150cztM0_level2.fits modeM0/AS1C07_001T10_9000005856_43150cztM0_level2_quad_clean.evt
Size (bytes)357,295,68091,100,160
Size340.7 MB 86.9 MB
Events in quadrant A3,897,621597,417
Events in quadrant B2,488,485622,656
Events in quadrant C3,502,784590,325
Events in quadrant D2,893,259549,816

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0310

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155722
B0115902
C0142402
D0129192

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5702941.648544%
B570320.035069%
C5703320.561108%
D5703751.315097%

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 8778 5703 53 53 0.60% 0.93%
B 8779 5705 0 0 0.00% 0.00%
C 8779 5705 22 22 0.25% 0.39%
D 8779 5705 72 72 0.82% 1.26%

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 15 222 738122 5962.79 598 587 123.7
A 10 83 612135 4944.22 598 587 123.7
A 15 237 201484 1624.2 598 587 123.7
B 0 229 69637 594.47 600 582 116.2
B 5 255 23478 197.1 600 582 116.2
B 0 186 20228 169.13 600 582 116.2
C 14 254 927218 6802.15 584 586 136.2
C 15 214 257094 1882.96 584 586 136.2
C 0 239 30548 219.94 584 586 136.2
D 1 52 484813 3351.36 585 566 144.5
D 1 47 60898 417.54 585 566 144.5
D 5 32 40503 276.39 585 566 144.5

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