ASTROSAT CZTI

Data Quality Report

Orbit 10190

Creation date: 2024-06-27T15:56:08.421056
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/AS1A03_050T01_9000001468_10190cztM0_level2.evt modeM0/AS1A03_050T01_9000001468_10190cztM0_level2_quad_clean.evt
Size (bytes)117,927,36033,523,200
Size112.5 MB 32.0 MB
Events in quadrant A803,221225,969
Events in quadrant B907,330228,533
Events in quadrant C786,684227,646
Events in quadrant D965,334217,351

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A032962
B036921
C032781
D038441

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1564130.831202%
B156460.383632%
C156440.255754%
D1564191.214834%

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 1564 1564 0 0 0.00% 0.00%
B 1564 1564 1 1 0.06% 0.06%
C 1564 1564 3 3 0.19% 0.19%
D 1564 1564 12 12 0.77% 0.77%

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 0 226 1933 39.48 207 203 43.8
A 13 251 1922 39.23 207 203 43.8
A 12 194 1865 37.92 207 203 43.8
B 0 189 22934 566.43 204 200 40.1
B 5 255 17117 421.5 204 200 40.1
B 0 214 14927 366.93 204 200 40.1
C 14 234 19487 418.88 195 196 46.1
C 14 67 3065 62.3 195 196 46.1
C 13 61 1539 29.16 195 196 46.1
D 13 104 64146 1316.21 199 194 48.6
D 7 71 48720 998.73 199 194 48.6
D 8 195 34113 698.1 199 194 48.6

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