ASTROSAT CZTI

Data Quality Report

Orbit 13045

Creation date: 2024-06-27T16:35:26.008480
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/AS1A04_216T01_9000001916_13045cztM0_level2.evt modeM0/AS1A04_216T01_9000001916_13045cztM0_level2_quad_clean.evt
Size (bytes)677,206,08087,612,480
Size645.8 MB 83.6 MB
Events in quadrant A3,727,342563,624
Events in quadrant B8,654,481450,895
Events in quadrant C3,495,306572,407
Events in quadrant D4,120,023539,958

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160043
B0307882
C0157392
D0174372

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75512663.522712%
B7551247732.803602%
C75511832.423520%
D75512473.271090%

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 7782 7553 2 2 0.03% 0.03%
B 7782 7552 1461 1461 18.77% 19.35%
C 7782 7553 0 0 0.00% 0.00%
D 7782 7553 66 66 0.85% 0.87%

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 143868 772.04 906 883 185.2
A 12 189 66634 355.02 906 883 185.2
A 1 162 14145 71.61 906 883 185.2
B 4 239 2717578 18548.03 759 737 146.5
B 0 85 2669838 18222.1 759 737 146.5
B 3 64 132679 900.78 759 737 146.5
C 13 61 6468 27.04 894 897 206.0
C 8 128 4588 17.92 894 897 206.0
C 8 112 2651 8.51 894 897 206.0
D 1 52 394545 1836.97 890 863 214.3
D 8 195 159114 738.42 890 863 214.3
D 2 33 66660 307.02 890 863 214.3

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