ASTROSAT CZTI

Data Quality Report

Orbit 47510

Creation date: 2024-07-11T09:53:17.648424
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/AS1A13_037T05_9000006332_47510cztM0_level2.fits modeM0/AS1A13_037T05_9000006332_47510cztM0_level2_quad_clean.evt
Size (bytes)540,838,080119,278,080
Size515.8 MB 113.8 MB
Events in quadrant A7,589,796777,972
Events in quadrant B3,820,809821,157
Events in quadrant C3,262,830783,415
Events in quadrant D4,764,573706,464

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01522
B01520
C01524
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A027683299
B016646127
C015565115
D019691153

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74853544.729459%
B75101361.810919%
C7510430.572570%
D75172263.006519%

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 7608 7539 87 87 1.14% 1.15%
B 7608 7557 26 26 0.34% 0.34%
C 7608 7552 1 1 0.01% 0.01%
D 7609 7553 111 111 1.46% 1.47%

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 10 83 3861032 22081.31 829 812 174.8
A 9 191 268282 1529.99 829 812 174.8
A 13 248 187865 1069.98 829 812 174.8
B 5 32 211823 1255.87 843 820 168.0
B 0 200 144623 855.9 843 820 168.0
B 0 198 65923 387.49 843 820 168.0
C 1 3 17913 86.71 829 832 197.0
C 3 233 11179 52.52 829 832 197.0
C 13 61 5518 23.79 829 832 197.0
D 6 112 595643 2893.32 816 788 205.6
D 2 249 268462 1301.94 816 788 205.6
D 12 1 186917 905.31 816 788 205.6

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