ASTROSAT CZTI

Data Quality Report

Orbit 30147

Creation date: 2024-06-27T20:11:29.803054
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_097T03_9000004336_30147cztM0_level2.evt modeM0/AS1A10_097T03_9000004336_30147cztM0_level2_quad_clean.evt
Size (bytes)557,544,96092,341,440
Size531.7 MB 88.1 MB
Events in quadrant A3,267,503601,523
Events in quadrant B5,138,504598,001
Events in quadrant C4,521,042566,467
Events in quadrant D3,517,571576,433

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138482
B0198152
C0180762
D0145662

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6510791.213518%
B6509901.382701%
C65093936.037794%
D6509490.752804%

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 7600 6511 6 6 0.08% 0.09%
B 7599 6509 1 1 0.01% 0.02%
C 7599 6509 14 14 0.18% 0.22%
D 7599 6510 11 11 0.14% 0.17%

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 0 13 53770 319.16 826 810 165.9
A 8 192 26487 154.74 826 810 165.9
A 13 254 12377 69.71 826 810 165.9
B 6 159 1890429 12108.42 816 796 156.1
B 0 190 31593 197.34 816 796 156.1
B 12 111 18722 114.87 816 796 156.1
C 3 233 1170902 6466.98 778 785 180.9
C 14 238 191119 1051.93 778 785 180.9
C 14 254 95869 525.51 778 785 180.9
D 8 195 182363 918.38 801 783 197.7
D 12 227 167922 845.34 801 783 197.7
D 13 168 40297 199.85 801 783 197.7

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