ASTROSAT CZTI

Data Quality Report

Orbit 34192

Creation date: 2022-01-24T09:27:47.350417
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/AS1A11_047T15_9000004882_34192cztM0_level2.evt modeM0/AS1A11_047T15_9000004882_34192cztM0_level2_quad_clean.evt
Size (bytes)529,473,60088,418,880
Size504.9 MB 84.3 MB
Events in quadrant A2,508,785601,703
Events in quadrant B3,924,305600,746
Events in quadrant C5,695,931548,809
Events in quadrant D3,548,276555,806

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350
B0350
C0350
D0360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0108523
B0152252
C0204482
D0142152

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5286130.245933%
B52862384.502459%
C528681815.474839%
D52861001.891790%

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 7408 5287 3 3 0.04% 0.06%
B 7408 5287 154 154 2.08% 2.91%
C 7408 5287 770 770 10.39% 14.56%
D 7408 5287 78 78 1.05% 1.48%

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 9 143 25606 196.77 631 620 127.0
A 10 83 21430 163.89 631 620 127.0
A 13 6 13781 103.65 631 620 127.0
B 5 172 658139 5556.97 626 611 118.3
B 5 31 284430 2398.64 626 611 118.3
B 0 189 180335 1518.9 626 611 118.3
C 0 239 2714559 20191.28 580 585 134.4
C 0 10 263266 1954.28 580 585 134.4
C 15 214 232348 1724.26 580 585 134.4
D 8 195 521950 3533.18 601 584 147.6
D 2 249 173598 1172.47 601 584 147.6
D 13 249 123938 835.94 601 584 147.6

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