ASTROSAT CZTI

Data Quality Report

Orbit 33349

Creation date: 2024-06-27T20:47:45.611587
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/AS1A10_058T15_9000004786_33349cztM0_level2.evt modeM0/AS1A10_058T15_9000004786_33349cztM0_level2_quad_clean.evt
Size (bytes)531,046,08057,689,280
Size506.4 MB 55.0 MB
Events in quadrant A2,941,965358,051
Events in quadrant B4,334,767334,664
Events in quadrant C3,262,759361,823
Events in quadrant D5,197,587333,623

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116883
B0162872
C0131182
D0190262

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A51051112.174339%
B51054518.834476%
C5105521.018609%
D51053847.522037%

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 7045 5105 85 85 1.21% 1.67%
B 7046 5106 332 332 4.71% 6.50%
C 7046 5106 38 38 0.54% 0.74%
D 7046 5106 373 373 5.29% 7.31%

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 15 169 365171 2787.25 663 650 130.8
A 13 254 7979 56.04 663 650 130.8
A 14 254 5894 40.09 663 650 130.8
B 5 172 912233 7481.14 650 635 121.9
B 0 190 509677 4177.52 650 635 121.9
B 0 219 295399 2419.02 650 635 121.9
C 10 49 269903 1820.34 653 659 147.9
C 15 214 223920 1509.45 653 659 147.9
C 0 10 145080 976.42 653 659 147.9
D 1 52 1010195 6489.92 640 623 155.6
D 8 195 849358 5455.99 640 623 155.6
D 2 250 493287 3167.03 640 623 155.6

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