ASTROSAT CZTI

Data Quality Report

Orbit 07685

Creation date: 2024-06-27T15:22:42.486686
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/AS1G06_104T01_9000001060_07685cztM0_level2.evt modeM0/AS1G06_104T01_9000001060_07685cztM0_level2_quad_clean.evt
Size (bytes)632,165,76086,757,120
Size602.9 MB 82.7 MB
Events in quadrant A2,900,402582,500
Events in quadrant B3,011,502594,721
Events in quadrant C9,668,057491,447
Events in quadrant D3,168,857548,110

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121692
B0124671
C0327321
D0130331

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5862570.972364%
B5862560.955305%
C5862181730.996247%
D5862621.057660%

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 7167 5863 3 3 0.04% 0.05%
B 7167 5863 3 3 0.04% 0.05%
C 7167 5862 1655 1655 23.09% 28.23%
D 7167 5863 12 12 0.17% 0.20%

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 13 248 30480 199.02 745 729 149.5
A 0 226 7188 43.21 745 729 149.5
A 12 194 6551 38.95 745 729 149.5
B 4 173 25228 177.3 744 727 138.2
B 4 81 21916 153.34 744 727 138.2
B 0 230 20019 139.61 744 727 138.2
C 9 68 6900599 44752.64 673 677 154.2
C 8 208 133243 859.82 673 677 154.2
C 13 61 5068 28.48 673 677 154.2
D 1 83 144003 806.17 731 708 177.7
D 2 152 105234 588.06 731 708 177.7
D 13 104 70914 394.98 731 708 177.7

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