ASTROSAT CZTI

Data Quality Report

Orbit 13617

Creation date: 2024-06-27T16:43:50.242189
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_044T01_9000002014_13617cztM0_level2.evt modeM0/AS1G08_044T01_9000002014_13617cztM0_level2_quad_clean.evt
Size (bytes)453,850,56098,461,440
Size432.8 MB 93.9 MB
Events in quadrant A3,164,299649,630
Events in quadrant B3,482,045644,145
Events in quadrant C3,151,434628,963
Events in quadrant D3,512,634613,080

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135843
B0146672
C0133892
D0146302

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6395610.953870%
B6395801.250977%
C6395260.406568%
D6395420.656763%

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 7531 6397 17 17 0.23% 0.27%
B 7531 6397 6 6 0.08% 0.09%
C 7531 6397 0 0 0.00% 0.00%
D 7531 6397 17 17 0.23% 0.27%

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 3 0 55287 341.77 790 775 159.5
A 15 69 54069 334.14 790 775 159.5
A 1 162 13537 80.01 790 775 159.5
B 0 219 209142 1385.39 791 771 150.4
B 0 85 62907 413.12 791 771 150.4
B 0 214 41380 270.0 791 771 150.4
C 3 233 170151 959.65 764 770 176.5
C 13 61 5492 26.75 764 770 176.5
C 14 234 3358 14.66 764 770 176.5
D 8 195 201835 1112.55 761 743 180.7
D 5 222 162868 896.96 761 743 180.7
D 12 6 112323 617.32 761 743 180.7

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