ASTROSAT CZTI

Data Quality Report

Orbit 29084

Creation date: 2024-06-27T20:00:08.053766
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_115T01_9000004178_29084cztM0_level2.evt modeM0/AS1A10_115T01_9000004178_29084cztM0_level2_quad_clean.evt
Size (bytes)563,869,44097,248,960
Size537.7 MB 92.7 MB
Events in quadrant A3,340,409629,858
Events in quadrant B3,521,775645,681
Events in quadrant C3,403,093628,050
Events in quadrant D6,345,656562,186

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143412
B0146972
C0143432
D0235852

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6865500.728332%
B6865821.194465%
C6866981.427323%
D686671510.413632%

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 8755 6866 0 0 0.00% 0.00%
B 8755 6865 10 10 0.11% 0.15%
C 8755 6865 0 0 0.00% 0.00%
D 8756 6866 573 573 6.54% 8.35%

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 13 254 12903 69.27 862 845 174.1
A 3 137 8722 45.25 862 845 174.1
A 0 226 7397 37.64 862 845 174.1
B 0 230 34733 204.04 861 841 166.1
B 0 183 32636 191.42 861 841 166.1
B 15 33 22343 129.45 861 841 166.1
C 14 238 133478 680.24 829 836 195.0
C 2 114 16317 79.39 829 836 195.0
C 2 16 9875 46.36 829 836 195.0
D 1 52 2098665 11002.38 799 779 190.7
D 8 195 836892 4385.0 799 779 190.7
D 12 233 312979 1637.34 799 779 190.7

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