ASTROSAT CZTI

Data Quality Report

Orbit 03389

Creation date: 2024-06-27T14:28:22.538244
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/AS1G05_112T01_9000000452_03389cztM0_level2.evt modeM0/AS1G05_112T01_9000000452_03389cztM0_level2_quad_clean.evt
Size (bytes)417,695,04073,425,600
Size398.3 MB 70.0 MB
Events in quadrant A3,126,152444,644
Events in quadrant B3,165,878449,552
Events in quadrant C3,045,212447,864
Events in quadrant D2,872,986430,504

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137032
B0136741
C0134771
D0134461

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6459661.021830%
B6459671.037312%
C6459440.681220%
D6459360.557362%

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 7319 6460 7 7 0.10% 0.11%
B 7319 6460 6 6 0.08% 0.09%
C 7319 6460 1 1 0.01% 0.02%
D 7319 6460 16 16 0.22% 0.25%

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 0 118 118888 763.9 750 733 154.7
A 8 15 58711 374.84 750 733 154.7
A 15 170 47034 299.35 750 733 154.7
B 2 249 54710 366.75 762 743 147.1
B 15 204 43008 287.22 762 743 147.1
B 14 167 37625 250.64 762 743 147.1
C 9 144 98402 562.52 738 743 173.6
C 14 67 18920 104.7 738 743 173.6
C 1 16 16794 92.45 738 743 173.6
D 13 223 62626 348.79 733 712 177.5
D 2 206 13648 72.87 733 712 177.5
D 5 171 10794 56.8 733 712 177.5

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