ASTROSAT CZTI

Data Quality Report

Orbit 11082

Creation date: 2024-06-27T16:08:03.570453
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/AS1G08_071T02_9000001620_11082cztM0_level2.evt modeM0/AS1G08_071T02_9000001620_11082cztM0_level2_quad_clean.evt
Size (bytes)415,612,80059,699,520
Size396.4 MB 56.9 MB
Events in quadrant A2,767,854368,309
Events in quadrant B3,464,620366,677
Events in quadrant C2,285,400367,941
Events in quadrant D3,720,272344,826

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119682
B0137211
C0104461
D0144621

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5133420.818235%
B51333096.019871%
C5133180.350672%
D51332144.169102%

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 6113 5134 0 0 0.00% 0.00%
B 6113 5134 170 170 2.78% 3.31%
C 6113 5134 0 0 0.00% 0.00%
D 6113 5134 201 201 3.29% 3.92%

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 8 15 337116 2718.84 599 584 123.8
A 15 174 106208 853.34 599 584 123.8
A 11 29 12216 93.97 599 584 123.8
B 4 239 968419 8490.53 591 577 114.0
B 0 214 57496 499.33 591 577 114.0
B 15 204 47166 408.71 591 577 114.0
C 13 61 4394 27.79 585 588 137.0
C 9 204 1849 9.21 585 588 137.0
C 14 234 1640 7.68 585 588 137.0
D 1 52 834294 6020.44 573 556 138.5
D 10 253 329715 2376.86 573 556 138.5
D 8 195 163968 1180.0 573 556 138.5

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