ASTROSAT CZTI

Data Quality Report

Orbit 19206

Creation date: 2024-06-27T18:00:03.498156
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_046T01_9000002838_19206cztM0_level2.evt modeM0/AS1A05_046T01_9000002838_19206cztM0_level2_quad_clean.evt
Size (bytes)487,736,64086,175,360
Size465.1 MB 82.2 MB
Events in quadrant A3,320,466547,034
Events in quadrant B3,461,161561,716
Events in quadrant C4,287,854535,269
Events in quadrant D3,277,304529,132

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139252
B0143132
C0173662
D0137842

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6257931.486335%
B62581201.917546%
C62582143.419623%
D6257861.374461%

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 8712 6258 0 0 0.00% 0.00%
B 8713 6259 7 7 0.08% 0.11%
C 8713 6259 1 1 0.01% 0.02%
D 8712 6259 18 18 0.21% 0.29%

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 8661 45.57 859 843 171.5
A 14 235 7672 39.81 859 843 171.5
A 0 226 7595 39.36 859 843 171.5
B 3 64 27906 166.95 863 845 162.1
B 12 111 18664 109.93 863 845 162.1
B 0 190 17899 105.22 863 845 162.1
C 3 233 937797 4911.56 825 833 190.8
C 14 238 129737 675.71 825 833 190.8
C 13 61 5702 25.52 825 833 190.8
D 7 96 50819 244.71 838 813 204.4
D 11 176 37765 180.83 838 813 204.4
D 2 234 26519 125.79 838 813 204.4

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