ASTROSAT CZTI

Data Quality Report

Orbit 17301

Creation date: 2024-06-27T17:34:44.880775
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/AS1A05_010T02_9000002556_17301cztM0_level2.evt modeM0/AS1A05_010T02_9000002556_17301cztM0_level2_quad_clean.evt
Size (bytes)475,231,680103,682,880
Size453.2 MB 98.9 MB
Events in quadrant A3,397,447674,762
Events in quadrant B3,481,930673,298
Events in quadrant C3,426,797636,792
Events in quadrant D3,577,366634,472

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153192
B0154312
C0152762
D0158572

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7491400.533974%
B7491801.067948%
C7491821.094647%
D7491550.734214%

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 8381 7493 0 0 0.00% 0.00%
B 8381 7493 0 0 0.00% 0.00%
C 8381 7493 0 0 0.00% 0.00%
D 8381 7493 7 7 0.08% 0.09%

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 4 2 13747 73.02 877 860 176.5
A 14 235 9267 47.63 877 860 176.5
A 0 226 7572 38.03 877 860 176.5
B 0 230 32946 188.97 879 857 169.8
B 12 111 20877 117.9 879 857 169.8
B 11 111 17978 100.83 879 857 169.8
C 14 238 129135 649.33 839 841 197.6
C 3 233 27438 134.61 839 841 197.6
C 13 61 6013 26.18 839 841 197.6
D 1 52 141829 689.05 847 822 204.6
D 2 152 114927 557.59 847 822 204.6
D 5 222 95513 462.72 847 822 204.6

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