ASTROSAT CZTI

Data Quality Report

Orbit 27280

Creation date: 2024-06-27T19:38:23.332125
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/AS1T03_243T01_9000003918_27280cztM0_level2.evt modeM0/AS1T03_243T01_9000003918_27280cztM0_level2_quad_clean.evt
Size (bytes)513,627,84072,192,960
Size489.8 MB 68.8 MB
Events in quadrant A3,216,189442,155
Events in quadrant B4,708,774440,220
Events in quadrant C3,249,476426,058
Events in quadrant D3,934,609418,948

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135460
B0181190
C0136860
D0158640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6578470.714503%
B65795037.645539%
C6579891.352789%
D65791171.778386%

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 7553 6579 0 0 0.00% 0.00%
B 7554 6580 269 269 3.56% 4.09%
C 7554 6580 1 1 0.01% 0.02%
D 7554 6580 86 86 1.14% 1.31%

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 13 254 9200 50.09 833 816 167.4
A 3 137 8014 43.01 833 816 167.4
A 0 226 7201 38.15 833 816 167.4
B 10 245 1506309 9800.16 806 788 153.6
B 0 230 25956 163.83 806 788 153.6
B 12 111 19074 119.03 806 788 153.6
C 14 238 127360 682.57 791 795 185.4
C 15 208 41751 220.88 791 795 185.4
C 13 61 5202 23.77 791 795 185.4
D 1 52 615906 3278.58 794 775 187.6
D 12 17 202213 1073.64 794 775 187.6
D 2 250 75727 399.49 794 775 187.6

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